Chronological List of District Heating Systems in the United States

| History of District Heating in the United States | District Heating Studies |

District Heating Summary Document (pdf)

This is a list of all commercial district heating systems in the United States, with the year of initial operation, owner(s), and the year when the system shut down if it is not still operating. Where two or more systems operated in the same city and ended up under common ownership, they are shown as a single system with notes. Several small district heating systems in Alaska are not included here.

Several lists of district heating systems were published between 1900 and 1917, but additional evidence of their existence was required for inclusion in this list such as a mention in a local history or in a newspaper or journal article.  Additional systems no doubt exist and will be added as they are confirmed. Some systems were sold several times and an attempt has been made to include the first and last owners. 

Dates shown in italics are approximate. The OP No. column indicates systems that are currently operating and are also shown in bold.  The HW column identifies hot water systems installed between 1894 and 1910.  The last of these early hot water systems was shut down in Perry, Iowa on June 14, 1981.  An "H" prefix shows systems using high-temperature hot water, a "G" for geothermal hot water systems, and an "E" for more recent systems using European EN-253 piping systems, the first of which began service in Willmar, Minnesota in September 1982.  Where "Exhaust steam" is shown in the Notes column, that term was used to describe the system, but most systems built between 1890 and 1918 either distributed exhaust steam or used it to heat hot water.  "ADSCO exhaust steam" indicates those systems where it is known that the American District Steam Company installed the piping network.  Many systems using exhaust steam also distributed live steam from boilers.

This list is a work in progress and based on the best available evidence, please send any updates or corrections to me at: m.pierce@rochester.edu .


No. HW Op No. Year
City
State
Owner
Shut Down
Notes
1

1877 Lockport NY Holly Steam Combination Company (limited)
American District Steam Company (1881)
Economy Light, Fuel & Power Co. (1903)
New York State Electric & Gas Co.
1969
2

1878 Auburn NY Auburn Steam Heating Company
Auburn Electric Company
Empire Gas and Electric Company
1926
3

1878 Detroit (1) MI Detroit Steam Supply Company
1884
4

1878 Springfield (1) MA Springfield Gas Light Company
1903
5

1879 Milwaukee (1) WI Milwaukee Steam Supply Company 1881
6

1879 Troy NY Troy Steam Heating Company 1883
7

1879 Belleville IL Belleville Steam Supply Company
St. Clair Steam Supply and Electric Light Company (1882)
1889 Owned by Jacob Brosius
8

1879 Dubuque IA Dubuque Steam Supply Company
Dubuque Consumers Steam Supply Company
1892
9

1879 Garden City NY A. T. Stewart 1880
System taken over by local church.
10
E2
1
1879 Saint Paul (1)
MN John Wann
Economy Steam Heat Company (1884)
St.Paul Light, Heat and Power (1891)
Northern States Power (1910)
District Energy St. Paul (1981)

Converted to hot water in 1983. 
District Energy St. Paul
11

1880 New Haven CT New Haven Heat Supply Company
New Haven Heating Company (1884)
Frederick A. Carleton (1892)
1908
12

1880 Hartford (1) CT Hartford Steam Company
Hartford Electric Light Company
1892
13


1880 Burlington IA Burlington Steam Supply Company 1920
14


1880 Lynn MA Citizens' Steam and Gas Company of Lynn
1883
15

2 1880 Denver CO Denver City Steam Heating Company
Public Service Company of Colorado (1909)

Oldest commercial district heating company in North America;
Oldest commercial steam heating company in the world.
16


1881 Davenport IA Davenport Steam Heating Company
Davenport Consolidated Gas, Electric Light and Steam Heating Company (1895)
Peoples Light Company (1917)
1942
17

3 1882 New York City (1) NY New York Steam Company
New York Steam Corporation (1921)
Con Ed (1954)

Largest district heating system in North America.
Con Ed Steam
18


1882 New York City (2) NY American Heating and Power Company 1883
19


1883 Clearfield PA Clearfield Steam Heating Company
Pennsylvania Electric Company (1912)
1956
20


1883 Philipsburg PA Philipsburg Steam Heating Company
Pennsylvania Electric Company (1912)
1957
21


1883 Bellefonte PA Bellefonte Gas and Steam Heating Company 1916
22


1884 Williamsport PA Williamsport Steam Company 1917
23


1884 Lock Haven PA Lock Haven Illuminating, Heating and Power Company 1916
24

4
1885 San Francisco CA United Light & Power Co. of San Francisco (exhaust steam)
Pacific Gas & Electric (high pressure steam)
Thermal Ventures (1993)
NRG Thermal (1999)

Now owned by Clearway Thermal
25

1885 Lawrence MA Edison Electric Illuminating Co of Lawrence 1900
Exhaust steam
26
H1
1886 Washington DC Washington Heat & Power Co. 1889 Prall high-temperature hot water system
27


1886 Topeka (1) KS Topeka Steam Heating Company 1889
28


1886 Wilkes-Barre PA Wilkes-Barre Heat, Light & Motor Co.
Pennsylvania Power & Light (1923)
Wilkes-Barre Company (1951)
Steam Heat Authority
1990
29


1886 Tyrone PA Home Electric Light and Steam Heating Company 1946
30

5 1886 Harrisburg PA Harrisburg Light & Power Company
Pennsylvania Power & Light (1930)
Statoil (1985)
NRG Thermal (2000)

Now owned by Clearway Thermal
31


1887 Hazleton PA Hazleton Steam Heating Company 1920
32


1887 Reading PA Reading Steam Heat and Power Company 1968
33


1887 Bloomsburg PA Bloomsburg Heating Company 1968
34


1888 Attleboro MA Attleboro Steam & Electric Company
1920
35
H2

1888 Boston (1) MA Boston Heating Company 1889 Prall high-temperature hot water system
36


1888 Pottsville PA Pottsville Steam Heat & Power Company 1972
37


1888 Allentown PA Allentown Steam Heating & Power Company 1968
38


1888 Lebanon PA Lebanon Steam Company 1966
39


1888 Salt Lake City UT Salt Lake Power, Light and Heating Company
Utah Light & Traction
Utah Power & Light
1996 Heating plant sold to LDS Church.
40


1889 Ackley IA Ackley Electric Light & Heating Co
City of Ackley (1906)
1933 Homemade exhaust steam
41


1889 Ottumwa IA Ottumwa Electric and Steam Company 1956 ADSCO exhaust steam
42
44
6 1889 Indianapolis IN Marmon-Perry Light Company
Home Heating and Lighting Company
Indianapolis Power & Light (1927)

Yaryan hot water system installed in 1902; converted to steam in 1929.
Now owned by Citizens Energy
43

7 1889 Kansas City MO Edison Electric Lighting Company
Trigen (1990)

Exhaust steam
Now owned by Vicinity Energy
44

8 1889 Philadelphia PA Edison Electric Light Company of Philadelphia
Philadelphia Steam Company
Catalyst Thermal Energy Corporation (1986)
Trigen

Now owned by Vicinity Energy
45


1889 Syracuse NY Syracuse Heat & Power Company
Municipal Heating Company of Syracuse (1903)
1910

46


1889 Chester PA Chester Steam Heating and Power Company
1900
Exhaust steam
47


1890 Duluth (1) MN Duluth-Edison Electric Co
1920
Exhaust steam
48


1890 Springfield IL Springfield Electric Light and Power 1968
Exhaust steam
49


1890 Missoula MT Missoula Mercantile Company
Missoula Light & Water Company (1906)
1960
50

9
1890 Seattle WA Seattle Electric Company
Diamond Ice Company
Seattle Steam Heat & Power Company
Enwave (2014)

Owned by Enwave
51
39

1891 Des Moines IA Des Moines Steam Heating Co.
Iowa Light, Heat & Power Co.
1905
Added hot water 1902
52


1891 Sioux City IA Boston Investment Company 1980
53


1891 Presque Isle ME Presque Isle Electric Company 1920

54

1891 Buffalo (1) NY Thompson-Houston Company
Buffalo General Electric
1897
55
10 1891 Greece NY Eastman Kodak Company
RED-Rochester LLC (2013)

RED-Rochester, LLC
56

1891 Tacoma WA Syndicate Heat & Power
Tacoma District Heating Co
Consumers Central Heating Co (1919)
1979
57
19

1892 Carroll IA Carroll Electric Light & Power Co.
Iowa Public Service Company
1973 Exhaust steam initially, replaced by hot water in 1900
58

11
1892 Cedar Rapids IA Cedar Rapids Electric Light and Power Co.
Iowa Power & Light

Provides high pressure steam to two customers.
Alliant Energy
59


1892 Grinnell IA Grinnell Electric Light Co
Grinnell Electric & Heating Co.
Iowa Southern Utilities
1960 Exhaust steam
60


1892 Malvern IA Malvern Light & Power
Continental Gas & Electric
1925
61


1892 Marion IA Addison L. Daniels Gas & Electric Works
Marion Light, Heat & Power Co
Iowa Electric Light & Power
1940 Exhaust steam
62
G1
12
1892 Boise (1) ID Artesian Hot and Cold Water Company
Boise Warm Springs Water District

Geothermal Hot Water
Boise Warm Springs Water District
63

1892 Pittsfield MA Pittsfield Electric Light Company
Western Massachusetts Electric Co
1971 Exhaust steam
64


1892 St. Joseph MO St. Joseph Light & Power Co. 1978 Exhaust steam
65


1892 Brooklyn NY Edison Electric Illuminating Co. 1905
Live steam for power and exhaust steam for heating
66


1892 Shenandoah PA Shenandoah Heat & Power Company
Home Steam Heat and Power Company (1906)
1919 Exhaust steam
67


1893 Aurora IL Aurora Street Railway Company 1964 Exhaust steam
68


1893 Sycamore IL DeKalb-Sycamore Electric Co
Illinois Power Co.
1941
69


1893 Winona IL Warsaw General Electric Co,
Winona Electric Light & Water Co
1923

70


1893 Overbrook PA Overbrook Steam Heat Company 1973
71


1894 Butte MT Phoenix Electric Light & Steam Heating Co 1950
72

1894 Fredonia NY Dunkirk & Fredonia Railway Company
Central Station Heating and Construction Company (1910)
1916
73

13
1894 Rochester NY Rochester Gas & Electric Corporation
Rochester District Heating Cooperative (1985)

Rochester District Heating Cooperative
74
1

1894 Toledo OH Central Chandelier Co.
Home Heating & Lighting Co.
Toledo Gas, Electric & Heating Company (1905)
Toledo Railways & Light Company
Toledo Edison Company
1985 Yaryan hot water system
Residential hot water service discontinued in the early 1940s; business district hot water service discontinued in 1965
Steam discontinued 1985
75


1894 Scranton PA Economy Steam Heat Company
Scranton Electric Company (1907)
Scranton Steam Heat Company (1956)
Community Central Energy Corporation (1973)
2006
76


1895 Eagle Grove IA Eagle Grove Electric
Iowa Public Service
1980
Plant sold to Ag Processing, Inc.to produce steam and electricity for their food processing facility.
77


1895 Spencer (1) IA Spencer Electric Light & Power Co 1901 Homemade exhaust steam
78


1895 Webster City IA City of Webster 1970
Exhaust steam
79


1895 Danville IL Danville Electric Light and Power Co 1960
80

14
1895 Boston (2) MA Edison Electric Illuminating Company
Catalyst Energy Corp (1986)

Now owned by Vicinity Energy
81


1895 Germantown PA Germantown Steam Company 1963
82


1896 Eldora IA Eldora Electric Company
Iowa River Light & Power
1917

83


1896 Greenville PA Peoples Electric Light, Heat & Power Company
Mercer County Light, Heat and Power Company (1916)
1921
84


1896 Towanda PA Towanda Electric Illuminating Company
City Heat Company
1963 Exhaust steam
85


1897 Davenport IA Davenport Gas & Electric Co 1943
86


1897 Muscatine IA Muscatine Electric Railway Co. 1902

87


1897 Taylorville IL Steam Heating Plant of Taylorville
Taylorville Gas & Electric Company (1905)
Central Illinois Public Service Company
Taylorville Heat Cooperative (1951)
1978 ADSCO exhaust steam
88
2

1897 La Porte IN La Porte Electric Company
1952
Yaryan hot water system
89


1897 Topeka (2) KS Edison Electric Illuminating Company
Illinois Traction (1910)
Kansas Power & Light (1927)
1984
Exhaust steam
90


1897 Cumberland MD Edison Electric Illuminating Company of Cumberland
Potomac Edison (1923)
1964
91

15 1897 Grand Rapids MI Edison Electric Light Company
Consumers Energy Company (1915)
Kent County (1962)
Veolia (2006)

Now owned by Vicinity Energy
92


1897 Laconia NH Belknap Electric Power Company 1920
93

1897 Newburgh NY Consolidated Gas, Electric Light, Heat, & Power Co of Newburgh
Newburgh Light, Heat & Power Company
Central Hudson Gas and Electric Company
1953
94


1897 Tiffin OH Tifflin Edison Illuminating Company
Ohio Edison (1911)
1916

95


1897 Mahanoy City PA Anthracite Light, Heat & Power Company
Pennsylvania Power & Light Company (1929)
1930
96


1898 Grundy Center IA Grundy Center Electric Light Co
City of Grundy
1973
97
3

1898 Missouri Valley IA Missouri Valley Electric Company 1962 Yaryan hot water; converted to steam around 1929
98


1898 Parkersburg IA Parkersburg Electric Light, Heat & Power Co 1914 Exhaust steam
99


1898 Chicago IL Illinois Maintenance Company 1979

100
4

1898 Mattoon IL Mattoon Heat, Light and Power Company
1935
Yaryan hot water system
101


1898 Fort Scott KS Fort Scott Steam Heating Co
Fort Scott Gas & Electric Co (1901)
Community Power & Light (1922)
Kansas City Power & Light (1952)
1952 ADSCO exhaust steam
102


1898 Erie PA Home Heating Company
Erie Lighting Company (1899)
Pennsylvania Electric Company (1942)
1991 Building now houses the Erie Maritime Museum
103


1898 York PA York Steam Heating Company
Metropolitan Edison
1977 Exhaust steam
104

1898 Geneva NY Geneva NY Geneva Steam Heating Company
Empire Gas & Electric Company
1908
105

1898 Hornell NY American Heating Company
Hornell Electric Company
New York State Electric & Gas Corporation
1948
106

1898 Penn Yan NY Penn Yan Steam Heating Company 1948
107

1898 Springfield OH Springfield Light, Heat & Power Co
Ohio Edison
1980
108 5

1898 La Crosse WI La Crosse Gas & Electric Company 1969 Yaryan hot water system
109 6
1898 Portage WI Portage Electric Light Company
1951 Yaryan hot water system
110 7
1899 Boone IA Boone Heating Company
Iowa Electric Light & Power
1962 Yaryan hot water system
111 8
1899 Ida Grove IA Ida Grove Electric Company
Iowa Public Service Company
1966 Yaryan hot water system
112 9
1899 Iowa Falls IA Iowa Falls Electric Light & Power Co.
Iowa Electric Light & Power
1963 Yaryan hot water system
113 10
1899 Mason City IA Brice Gas and Electric Company
Interstate Power Company
1970 Yaryan hot water system
114 11
1899 Perry IA Iowa Electric Light & Power 1981 Yaryan hot water system
115 12
1899 Red Oak IA Red Oak Electric Light Company
Iowa Power & Light
1954 Evans-Almirall hot water system
116 13
1899 Alton IL Alton Gas & Electric Company 1918 Yaryan hot water system
117


1899 Hillsboro IL Hillsboro Electric Co 1924
118 14
1899 Jerseyville IL Jerseyville Light, Heat & Power Co
Central Illinois Public Service Company (1912)
1916 Yaryan hot water; converted to steam around 1912
119

1899 La Salle IL Marquette Heat & Light Co 1920
120

1899 Pekin IL Pekin Electric Co.
Central Illinois Power
1934
121

1899 Watseka IL Watseka Electric Company
Central Illinois Public Service
1917
122 15
1899 Waukegan IL Waukegan Electric Co. 1924 Hot water
123 16
1899 Terre Haute IL Terre Haute Traction & Light Company
Citizens Mutual Heating Company (HW)
1947 Hot water discontinued 1947
124

1899 Crookston MN Crookston Water Works, Power & Lighting
Red River Valley Power (1924)
Interstate Power (1926)
1926 ADSCO exhaust steam
125

1899 St. Cloud MN Benton Power & Traction Company
St. Cloud Light, Heat, Transit and Public Service Company
1905
126

1899 Sedalia MO Sedalia Steam Heating Company
Economy Steam Heating & Lighting
1920
127

1899 Newark NY Newark Light, Heat and Power Company
Central New York Gas and Electric Company
1919
128

1899 Mt. Pleasant PA People's Heating Co 1915
129

1899 Wilkinsburg PA Pennsylvania Heat & Power Co. 1915
130

1899 Pawtucket RI Pawtucket Electric Co 1920
131 17
1899 Kenosha WI Kenosha Gas & Electric Company
Wisconsin Gas & Electric (1912)
1920 Yaryan hot water system
132

1899 Marinette WI Marinette Electric Light & Street Railway Co
Menominee and Marinette Light and Traction (1903)
1915
133

1900 Colorado Springs CO Colorado Springs Electric Company
Colorado Springs Light, Heat & Power Co (1910)
1920 Exhaust Steam
134

1900 Waterbury CT Connecticut Light & Power 1926
135

1900 Atlanta GA Atlanta Steam Company
Georgia Power (1902)
1988
136 19
1900 Cresco IA Cresco Light, Heat & Power
Interstate Power (1912)
1912 Hot water
137 20

1900 Bloomington IL A. E. Demange
Consumers Heat and Electric Company
City District Heating Company
Bloomington & Normal Railway, Electric & Heating Company
Illinois Power & Light
1971 Hot water discontinued in 1923
138

1900 Champaign IL Urbana & Champaign Railway, Gas & Electric
Illinois Power
1959
139

1900 Charleston IL Charleston Light, Heat & Power Co. 1921
140 21
1900 Evanston IL Evanston Yaryan Co.
Public Service Company of Northern Illinois
1949 Yaryan hot water system
141

1900 Paris IL Paris Gas Light & Coke Co.
Central Illinois Public Service Co
1929 Yaryan hot water
142 22
1900 Paxton IL Paxton Electric Company
Central Illinois Utilities (1913)
1927 Hot water initially, converted to steam after 1912.
143

1900 Peoria IL Peoria Gas & Electric Co. 1971
144

1900 Urbana IL Urbana Light, Heat & Power
Illinois Power Co
1957
145


1900 Augusta ME Kennebec Light & Heat
Central Maine Power
1912
146

1900 Houghton MI Peninsula Light & Heat Company
Houghton County Electric Company
1910
147

1900 Menominee MI Menominee Electric Light & Street Railway
Menominee and Marinette Light and Traction (1903)
1915
148 23
1900 Owatonna MN Owatonna Electric Light & Heating Co.
City of Owatonna (1925)
1982 Yaryan hot water; converted to steam in 1925 after city bought the system.
149

1900 Bismarck ND Hughes Electric Co.
Montana-Dakota Utilities
1967 Exhaust steam
150

1900 Fargo ND Hughes Electric Co
Light, Heat, Transit and Public Service Company of Fargo
1971
151

1900 Grand Forks ND Grand Forks Gas & Electric Co 1970 ADSCO exhaust steam
152
16
1900 Cleveland (1) OH Cleveland Electric Railway Company
Cleveland Electric Illuminating Company
Catalyst Thermal Energy (1987)
Mid-America Energy (1991)
Corix Utilities (2015)

Owned by Corix Cleveland Thermal
153 24
1900 Delaware OH Gwynne Central Station Heating Company
Delaware Electric Light Heat and Power Co.
Ohio Utilities (1918)
Columbus and Southern Ohio Electric (1929)
1957 Yaryan hot water system
Residential hot water service discontinued around 1920
Heating plant sold to Ohio Wesleyan University around 1975
154
17
1900 Youngstown OH Youngstown Steam Heating Company
Mahoning County Light Company (1915)
Youngstown Thermal Energy (1980)
SOBE Thermal Energy Systems, LLC. (2019)

SOBE Thermal Energy Systems, LLC.
155

1900 Johnstown PA Johnstown Steam Heat Company
Johnstown Light, Heat, and Power Company (1902)
Pennsylvania Electric Company (1944)
1969
156

1900 Washington PA Washington Steam Heating Co
Washington Elec Lt & Power Co  (1902)
West Penn Power Company (1911)
1920
157

1900 Cleburn TX Cleburn Electric Light Co 1920
158

1900 Waxahachie TX Waxahachie Electric Light Co 1910
159 25
1900 Janesville WI Janesville Electric Co. 1912 Hot water
160

1901 Idaho Springs CO Seaton Mountain Electric Light, Heat and Power Co. 1919 Exhaust steam
161

1901 Buxton IA Consolidation Coal Company 1925
162


1901 Centerville IA Citizens Electric Light and Gas Co
Iowa Southern Utilities
1961
163


1901 New Hampton IA Electric Light Company
City of New Hampton
1963
164


1901 Spirit Lake IA B. F. Stevens
Town of Spirit Lake (gift from Stevens)
1980
165 26
1901 Bowling Green IL Bowling Green Electric Light & Power Co
Lake Erie Bowling Green & Napoleon Electric Railway
1916 Hot water
166

1901 Oak Park IL Oak Park Light, Heat & Power Co.
Public Service Company of Northern Illinois
1958
167

1901 Quincy IL Quincy Steam Heating Co
Central Illinois Public Service Co
1951
168

1901 Pontiac IL Pontiac Electric Light and Power Co
Public Service Company of Northern Illinois
1931 ADSCO exhaust steam
169

1901 Urbana IN Urbana Light, Heat & Power Co.
Illinois Power
1957
170 27
1901 Bedford IN Bedford Light, Heat & Power Co. 1921 Hot water
171 28
1901 Bloomington IN Central Indiana Lighting Co. 1920 Hot water
172 29
1901 Boonville IN Boonville Electric Light & Power Co.
Southern Indiana Gas & Electric (1930)
1941 Hot water
173 30
1901 Marion IN Marion Lighting & Heating Co. 1957 Hot water
174

1901 Muncie IN Muncie Electric Light Co. 1966 Exhaust steam
175 31
1901 Noblesville IN Noblesville, Heat, Light & Power Co. 1939
Hot water
176 32
1901 Princeton IN Princeton Light & Power 1924
Yaryan hot water
177

1901 Rochester IN Rochester Light, Heat & Power Co. 1942 Exhaust steam
178 33
1901 Sullivan IN Sullivan Heat, Light & Power Co 1908
Hot water
179
18 1901 Lansing MI lmanz A. Piatt and Fred B. Piatt
Piatt Power and Heat Company (1904)
Michigan Power Company (1906)
Lansing Board of Water and Light (1919)

Lansing Board of Water and Light
180 34
1901 Albert Lea MN Albert Lea Electric Co
Minnesota Gas & Electric (1911)
Interstate Power
1957 Evans-Almirall hot water; converted to steam in 1922
181


1901
Long Prairie MN City of Long Prairie 1919

182


1901 Pipestone MN Pipestone Electric Light , Heat and Power
Northwest Light & Power (1914)
Northern States Power (1917)
1920
183


1901 Glendive MT Eastern Montana Light & Power
Montana-Dakota Utilities Company
1962
184

1901 Dunkirk NY A. W. Cummings
Dunkirk Power and Heating Company
1917
185
35
1901 Bowling Green OH Bowling Green Electric Light & Power
Lake Erie, Bowling Green & Napoleon Railway Co
1920 Yaryan hot water system
186 36
1901 Columbus OH Indianola Land & Power Company
Columbus Railway & Light
1905 Yaryan hot water system
Exhaust Steam
187 37
1901 Coshocton OH Merchants Electric Light & Power Company
Coshocton Light & Heating Company
1928 Schott hot water system
188


1901 Leipsic OH Leipsic Light, Heat & Power
North Western Ohio Light Co (1915)
1920
189

1901 Van Wert OH Public Service Company of Van Wert 1917
190 38
1901 Washington Court House OH Washington-Smead Hot Water Company
Washington Heat & Electric (1906)
Dayton Power & Light (1926)
1950 Smead hot water system
191

1901 Montrose PA Montrose Electric Light, Heat and Power Co. 1915
192

1901 Renovo PA Renovo Edison Light, Heat and Power Co
Renovo Heat Company (1912)
1970
193

1902 Bristol CT Bristol & Plainville Tramway Co
Connecticut Light & Power (1927)
Bristol Steam Heat Co (1945)
1947

194 40
1902 Belvidere IL Belvidere Gas & Electric
Illinois Northern Utilities (1912)
Belvidere Heating Company (1920)
1940 Initially Yaryan hot water, some customers converted to steam in 1920 when hot water was discontinued.
195

1902 Clinton IL Clinton Gas Company
Illinois Power Company
1947 ADSCO exhaust steam
196


1902 Rockford IL Central Heat & Power 1973
197


1902 Tuscola IL Tuscola Water & Light
Tuscola heat consumers
1923
198


1902 Brazil IN A. Dinkle Florist 1907
199 41
1902 Connersville IN Light Heat & Power Co. 1920 Hot water
200 42
1902 Elwood IN Elwood Electric Light Co. 1935
Hot water
201 43
1902 Fowler IN Fowler Utilities Co.
Interstate Public Service
1920 Hot water
202 45
1902 Lafayette IN Merchants Heating and Lighting Company 1947 Schott hot water system
203 46
1902 New Castle IN New Castle Light, Heat & Power Co. 1926
Hot water
204 47
1902 Peru IN Peru Heating Co. 1934
Hot water
205


1902 Salina KS Kansas Ice & Storage Co. 1930
206


1902
Detroit Lakes MN City of Detroit Lakes 1987
207


1902 Lincoln (1) NE Lincoln Heat, Light & Power
Lincoln Traction (1909)
Iowa-Nebraska Light & Power (1930)
Consumers Public Power District (1942)
Lincoln Electric System (1964)
1977
208 48
1902 Atlantic City (1) NJ New Jersey Hot Water Heating Co. 1960 Hot water
209 49
1902 Ada OH Ada Water, Light & Heat Co 1920 Hot water
210

1902 Altoona OH Citizens Electric Light, Heat, & Power Co. 1947
211 50
1902 Findlay OH Findlay Street Railway Co, 1920 Yaryan hot water system
212 51
1902 Fremont OH Fremont Yaryan Co.
Ohio Power Co. (1913)
1936 Yaryan hot water system
213

1902 Lima OH Ohio Power Co. 1955
214


1902 New Philadelphia OH Ohio Service Co. 1952
215

1902 Bangor PA Bangor Electric Light, Heat & Power Co.
Bangor Steam Heat Co. (1913)
1968
216

1902 Easton PA Peoples Steam Heat & Power Co
Metropolitan Edison
1967
217

1902 West Chester PA Edison Electric Illuminating Co. of West Chester
Pennsylvania Electric Company
West Chester Steam Heating & Power Co.
1973 Exhaust steam
218

1902 Norristown PA Norristown Light & Steam Heat Company 1920
218


1902 Brookings SD City of Brookings 1985
220

1903 Birmingham AL Birmingham Railway, Light and Power Company
Alabama Power Company
2013 Exhaust steam
221

1903 Paducah KY Paducah Steam Heating Co
Paducah Electric (1919)
1923
222

1903 Clarinda IA Lee Electric Light Co
Iowa Power & Light
1964
223

1903 Vinton IA Iowa Electric Light & Power 1962 Exhaust steam
224

1903 Decatur IA Decatur Steam Heating Co.
Iowa Power Co.
1957
225

1903 Galesburg IL Galesburg Railway & Light Co 1957
226


1903 Lincoln IL Lincoln Street Car & Heating Co 1916
227 52

1903 Mt. Vernon IL Citizens Gas, Electric & Heating
Southern Illinois Light & Power (1919)
1921 Schott hot water system
228


1903 Rensselaer IL City of Rensselaer 1940
229


1903 White Hall IL White Hall Sewer Pipe & Stoneware Co
Central Illinois Public Service Co.
White Hall heating consumers
1922
230


1903 Anderson (1) IN Home Heating Company
Central Heating Company
1925
231
19
1903 Baltimore MD Baltimore Refrigerating and Heating Company
Baltimore Gas and Electric (1929)
Catalyst Thermal Energy Corporation (1985)
Trigen (1993)
Veolia

Now owned by Vicinity Energy
232

1903 Adrian MI Citizens Light & Power Company 1962
233
20
1903 Detroit (2) MI Central Heating Company
Murphy Power Company
Detroit Edison (1914)
Thermal Ventures II, L. P. (2003
Detroit Thermal (2014)

Detroit Thermal, LLC
234

1903 Waterville NY Waterville Gas & Electric Company 1922
235 53
1903 Piqua (1) OH Miami Light, Heat & Power Company
Dayton Power & Light (1915)
1928 Evans-Almirall Hot Water System
236 54
1904 Little Rock AR Little Rock Heating Company
Central Heating and Manufacturing Co (1907)
Little Rock Railway & Electric (1915)
Arkansas Power & Light
1952 Schott hot water, converted to steam in 1914
237


1904 Vinton IA Vinton Pearl Button Manufacturing Co.
Iowa Electric Light & Power (1937)
1961
238

1904 Mooresville IN Public Service Co.
Mooresville Utilities (1920)
1921
Exhaust steam
239

1904 Carrollton IL Carrollton Light, Heat and Power Co
Central Illinois Power Co
1921
240

1904 DeKalb IL DeKalb Electric Co
Northern Illinois Gas Co. (1956)
1957
241


1904 Kewanee IL Kewanee Light & Power Co
Kewanee Central Heating Co (1925)
1937
242

1904 Pana IL Pana Gas, Light, Fuel and Heating Co
Pana Gas & Electric (1905)
Central Illinois Power Co (1912)
1946
243


1904 Pittsburg KS Pittsburg Water Supply Co
City of Pittsburg (1911)
1959
244
21
1904 St. Louis MO Union Electric Light & Power Company
Thermal Resources (1984)
Trigen (1993)
Ashley Energy (2017)

Distribution system owned by city of St. Louis;
Plant owned by Ashley Energy
245

1904 Beaver Dam WI Beaver Dam Light & Power Co.
Wisconsin Power & Light
1950
246


1904 Cheyenne WY Cheyenne Light, Fuel & Power Co. 1979
247
22 1905 Fairbanks AK Northern Commercial Company
City of Fairbanks (1952)
Aurora Energy Company (1998)

Owned by Aurora Energy
248


1905 Walsenburg CO Walsenburg Light, Power & Ice Co 1913
249

1905 South Norwalk CT City of South Norwalk 1911
250


1905 Morrisonville IL Morrisonville Electric Co
Southern Illinois Light & Power
1925
251


1905 Mowequa IL Mowequa Electric Company
Central Illinois Public Service
1916
252

1905 Huntington IN The Huntington Light & Fuel Co. 1939
Exhaust steam
253


1905 Thorntown IN Town of Thorntown 1927
254


1905 Peabody MA City of Peabody 1925
255

1905 Pontiac MI Detroit Edison
Consumers Power
1930
256


1905 Yale MI Village | City of Yale 1917
257 55
1905 Kirksville MO Missouri Heat Light & Power 1965 Hot water
258


1905 Ellendale ND Ellendale Electric Co
Montana-Dakota Utilities
1964
259


1905 Minot ND Minot Light & Telephone Co
Northern States Power Co
1965
260

1905 York NE York Gas & Electric 1955
261


1905 Waterville NY Waterville Gas & Electric Company 1922
262


1905 Oberlin OH Oberlin Gas & Electric Co 1923
263

1905 McMinnville OR Central Heating Co. 1920

264


1905 Mobridge SD Mobridge Light, Heat & Power Co 1980
265


1905 Mineral Point WI Mineral Point Electric Light Co 1925
266


1906 Guthrie Center IA Guthrie Center Electric Light Co.
Iowa Electric Co.
1917
267


1906 Manchester IA Manchester Heat, Light & Power Co 1930
268


1906 Story City IA City of Story City 1930
269


1906 Stuart IA City of Stuart 1930
270


1906 Traer IA Traer Electric Company
Iowa Railway & Light
City of Traer
1974
271


1906 Hoopeston IL Hoopeston Gas & Electric 1913
272 56
1906 Mt. Carmel IL Mt. Carmel IL New Electric Company
Mt. Carmel Public Service & Utility Co.
1920 Hot water
273


1906 Virden IL Virden Electric Light Co 1921
274 57
1906 Frankfort IN The Frankfort Heating Co. 1920
Hot water
275


1906 McKinley MN City of McKinley 1925
276


1906 Mora MN Mora Electric Light, Heat & Power Co
Eastern Minnesota Power Co. (1917)
1918
277

1906 Missoula MT Missoula Light & Water Co 1960
278


1906 Harvard NE Harvard Electric Co. 1917
279


1906 Spring Grove PA P. H. Glatfelter Co 1949
280

1906 Clifton Forge VA Clifton Forge Public Service Co 1917
281
23 1906 Milwaukee (2) WI Central Heating Company
Wisconsin Electric Company

Owned by WE Energies
282

1907 Uniontown CT Union Light & Power 1920
283

1907 Canton IL Canton IL Canton Gas & Electric
Central Illinois Public Service
1937
284

1907 Monmouth IL Monmouth Gas & Electric
Illinois Iowa Power Company
1938
285


1907 Morton IL Morton Light, Heat, Power & Water Co 1915

286
24
1907 Boston (3) MA Harvard University: Advanced Energy Partners (1978); Veolia/MSIP (2010) Longwood Energy Partners (2018)
Medical Area Total Energy Plant
Owned by ENGIE North America Inc. and Axium Infrastructure (operating jointly as Longwood Energy Partners)
287


1907
Staples MN City of Staples 1925

288


1907 Springfield MO Springfield Gas & Electric
City of Springfield (1945)
1957

289
58
1907 Billings MT Billings Mutual Heating Company
Billings Utility Company (1914)
Billings Gas Company (1938)
1939 Hot water
290


1907 Jamestown ND Western Electric Company
Otter Tail Power (1924)
1975
291

25
1907 Omaha NE Brandeis Investment Company
Northern Natural Gas (1968)
Energy Systems Company (1985)
NRG Thermal (2013)

Owned by Clearway Thermal
292

1907 Canton OH Canton Electric Company 1975
293

1907 Dayton OH Dayton Citizens Electric Company
Dayton Power & Light
1997
294
26 1907 Pittsburgh (1) PA Bellefield Boiler Plant
Bellefield Boiler Plant (Wikipedia)
295

1907 Waukesha WI Waukesha Gas & Electric
Wisconsin Natural Gas
1963
296

1907 West Bend WI West Bend Heating & Lighting Co 1938
297


1908 Britt IA Britt Light & Power Co,. 1953
298


1908 Jordan MN Jordan Electric Light & Steam Heating Co
Minnesota Utilities
Northern States Power (1945)
1950
299


1908 Marshall MN City of Marshall 1976
300


1908 McCook NE McCook Electric Co. 1920
301


1908 Sidney NE Sidney Electric Service Company
City of Sidney
Western Public Service Co
Consumers Public Power
City of Sidney
1950
302


1908 Windber PA Windber Heating Co 1962
303

1908 Sturgeon Bay WI City of Sturgeon Bay 1935
304


1908 Evanston WY Evanston Electric Light Company 1922
305
59
1909 Crawfordsville IN Crawfordsville Heating Company 1933 Hot water
306


1909 Evansville IN Evansville Public Service
Southern Indiana Gas & Electric
1967
307


1909 Louisville KY Pike Campbell
Fetter Lighting & Heating Company
Louisville  Gas & Electric
1955
308
27 1909 Virginia MN Virginia Electric Power and Water Company
City of Virginia (1913)

Residential service discontinued in 2020.
Virginia Public Utilities
309


1909 Dickinson ND Hughes & Deiters Electric Co 1952
310


1909 Arlington NE Arlington Steam Heating Company 1925

311


1909 Aurora NE Aurora Electric Company
Consumers Public Power District
1947

312


1909 Geneva NE Geneva Electric Company
Continental Gas & Electric Co
1922

313


1909 Osceola NE Osceola & Shelby Electric Light, Heat & Power 1920
314


1909 Burlington WI Burlington Heating Company 1936
315

1910 Streator IL Streator Heat and Power Co
Public Service Company of Northern Illinois
1929 Exhaust steam installed by W. H. Schott
316


1910 Anderson (2) IN City of Anderson 1971
317 60
1910 Logansport IN Logansport Heat & Power Co
Logansport Utilities (1920)
1922 Hot water
Exhaust steam
318


1910
Alexandria MN City of Alexandria 1979
319


1910 Benson MN City of Benson 1977
320


1910 Faribault MN Shaft-Pierce Shoe Company 1925
321


1910
Glenwood MN Glenwood Electric Light, Heat & Power
Northern States Power Company (1926)
1950

322


1910
Litchfield MN City of Litchfield 1978

323


1910
Mapleton MN Mapleton Electric Light Co 1920
324


1910 Springfield MN City of Springfield 2001
325


1910 Clay Center NE M. M. Johnson Electric Light Plant 1920
326


1910 Sidney NE Sidney Electric Service Co
City of Sidney
1950
327

1910 Eugene OR Eugene Heating Company
Eugene Water & Electric Board (1962)
2012
328 61
1910 Portland (1) OR Portland Central Heating Company 1920
Hot water
329


1910 Vandergrift PA Vandergrift Land & Improvement Co. 1925
330


1910 Bellville TX City of Bellville
Intermountain Railway Light & Power
1920
331


1910 Yakima WA Yakima Central Heating Co
Pacific Power & Light
1969
332

1910 Lake Mills WI City of Lake Mills 1950
333

1911 Oakland CA Oakland, Gas, Light & Heat Company
Pacific Gas & Electric (1919)
1980
334

1911 Lamar CO Lamar Electric & Heating Co
Intermountain Railway Light & Power
1922 Exhaust steam
335


1911 Sabetha KS City of Sabetha 1965
336
28
1911 Hibbing MN City of Hibbing
Hibbing Public Utilities
337


1911 Keewatin MN City of Keewatin 1975
338


1911 Maryville MO Maryville Electric Light and Power
Iowa Power & Light (1943)
1952
339


1911 Mexico MO Mexico Power Co
Missouri Power & Lighting
1941
340


1911 Tarkio MO Tarkio Electric & Water
Intermountain Railway Light & Power (1917)
1925 Exhaust steam
341


1911 Laramie WY Laramie Electric Company
Western Public Service Company
1940
342


1912 Aledo IL Illinois Northern Utilities Co 1926 Exhaust steam
343


1912 Winthrop MN City of Winthrop 1965 Exhaust steam
344


1912 Excelsior Springs MO Excelsior Springs, Water, Gas & Electric
Missouri Power & Lighting
1942
345


1912 Langdon ND Langdon Electric Plant
Otter Tail Power Company (1926)
1930
346


1912 Hanover PA Central Heating Company 1968
347


1913 Danbury CT Danbury & Bethel Gas & Electric Co 1918
348
29
1913 Cambridge MA Boston Elevated Railway Company
Cambridge Electric Company (1930)
NStar
Veolia (2005)
Vicinity Energy (2019)

Owned by Vicinity Energy
349


1913 Eveleth MN Home Lighting & Heating
Minnesota Utilities (1917)
Minnesota Power & Light (1923)
1965
350


1913 Wadena MN City of Wadena 1973
351 E1
1913 Willmar MN City of Willmar 2020 Converted to hot water in 1982
352


1913 Forsythe MT Forsyth Light & Power Co.
Mountain States Power Company
1939
353


1913 Havre MT Montana Power Company 1919
354


1913 Miles City MT City of Miles City
Montana-Dakota Utilities Company
1961
355


1913 Fremont NE City of Fremont 1975
356


1913 Scottsbluff NE Scottsbluff Electric Power Company
Intemountain Railway, Light & Power
Consumers Public Power
1955

357


1913 Port Jefferson NY Port Jefferson Electric Light Co 1916

358


1913 State College PA Poe Steam Company
State Centre Electric Co (1913)
1918
359

1913 Wayne PA Wayne Steam Heat Company 1949
360


1914 Garrett IN City of Garrett 1954
361


1914 Marlborough MA Marlborough Electric Co. 1930
362


1914 Worcester MA Worcester Electric Light Co,
Worcester Cold Storage & Warehouse Co.
1985
363

1914 Battle Creek MI Consumers Power Company 1970
364

1914 Saginaw MI Saginaw Steam Company
Consumers Power Company
1970
365


1914 Madison MN City of Madison 1978
366


1914 Crawford NE Intermountain Railway Light & Power Co
Western Public Service Co
1930
367


1914 Redfield SC City of Redfield
Northwestern Power Company
1970
368

1914 Portland (2) OR Northwestern Electric Company
Pacific Power & Light Co
1986

369


1914 Casper WY Natrona Power Company
Pacific Power & Light Company
1955
370

1915 Steamboat Springs CO Steamboat Heating Company 1920
371


1915 Columbia City IN City of Columbia 1956
372


1915 Athol MA Athol Gas & Electric 1929
373


1915 Canby MN Union Public Service Company 1932
374


1915 Lapeer MI Peoples Light & Power Co
Detroit Edison
1947
375

1915 Worthington MN City of Worthington 1982
376


1915 Chadron NE Intermountain Railway Light & Power Co
Western Public Service Co.
1937
377


1915 O'Neill NE McGinnis Creamery & Produce Co. 1925
378


1915 Norwich NY Norwich Gas & Electric Co 1916
379
30
1915 Pittsburgh (2) PA Allegheny County Steam Heating Company
Pittsburgh Allegheny County Thermal (1982)

Pittsburgh Allegheny County Thermal
380


1915 Hartford WI City of Hartford 1925
381


1915 Waterloo WI City of Waterloo 1992
382

1916 Rock Rapids IA City of Rock Rapids 1966
383

1916 Sibley IA City of Sibley 1984
384

1916 South Bend IN St. Joseph Heating Company 1972
385


1916 Buhl MN City of Buhl 1976
386

31 1916 New Ulm MN New Ulm Heating Company
City of New Ulm

City of New Ulm District Energy
387


1916 Redwood Falls MN Redwood Falls Light & Power
City of Redwood Falls (1946)
1976
388


1916 Sleepy Eye MN City of Sleepy Eye 2004
389


1916 Enderlin ND Otter Tail Power Company 1924
390


1916 LaMoure ND Dakota Utilities 1924
391


1916 Mandan ND United Public Utilities Co. 1953
392


1916 Oakes ND Otter Tail Power Company 1925
393

1916 Devils Lake ND General Utilities Corporation
Otter Tail Power Company (1924)
City of Devils Lake (1975)
Devils Lake Steam Heat Authority
1986
394

1916 Spokane WA Merchants Central Heating Company
Washington Water Power (1919)
1986 Old plant now a restaurant.
395

1917 Spencer (2) IA Spencer Heating Company
City of Spencer (1942)
1987
396

1917 Ogallala NE City of Ogallala 1941
397


1918 Goshen IN Municipal Heating Plant 1932

398


1919 Windom MN City of Windom 1968
399


1919 Valley City ND City of Valley City 1975
400

1919 Klamath Falls (1) OR Klamath Heating Co
Consumers Heating Co (1946)
1970
401

1919 Hudson WI Willow River Power Company 1963 Exhaust steam
402

1920 Flagstaff AZ Flagstaff Electric Company 1966 Exhaust steam
403

1920 San Diego CA San Diego Gas & Electric 1993
404


1920 Fairmont MN Fairmont Public Heating Company
City of Fairmont (1939)
2007
405


1920 Luverne MN City of Luverne 1972
406

1920 Arcade NY Village of Arcade 1979 Exhaust steam until 1951
407


1921 Miller SD City of Miller 1950

408


1921 Watertown SD Watertown Central Heating Co
City of Watertown (1934)
1991
409


1922 Batavia IL City of Batavia 1930
410


1924 Wellsville NY Village of Wellsville 1961
411

1925 Mariemont OH The Mariemont Company 1954
412


1926 Blue Earth MN City of Blue Earth 2005
413


1926 Austin MN Austin Heating Company
City of Austin
1985
414
32
1927 Minneapolis MN Baker Properties
IDS Properties (1969)
The Energy Center (1972) IDS & Minnegasco
NRG Thermal (1993)

Owned by Clearway Thermal
415
33
1927 Akron OH Akron Steam Heating Company
Ohio Edison (1930)
City of Akron (1979)

Operated by Akron Energy Systems
416

1927 Kalamazoo MI Consumers Power Company 1972
417
34 1927 Rochester (1) MN Franklin Heating Station

418


1927 Bala Cynwyd PA Bala Steam Heat Company
Wynnefield Steam Heat Company (1941)
1948
419


1927 Drexel Park PA Aronimink Park Heating Co 1948
420


1927 Springfield Township PA Springfield Steam Company 1936
421


1927 Wynnefield PA Wynnefield Steam Heat Company 1948
422


1928 Rochester (2) MN City of Rochester 1986
423


1928 Yeadon PA Longacre Park Heating Company 1972
424


1929 Hamilton MT Valley Mercantile Corporation 1934
425


1929 Lower Merion Township PA Lewis Jones Inc
Pennsylvania Utilities Investment Corp (1954)
General Waterworks Corp (1966)
1972
426


1930 Huron SD Central Heating Company 1965
427

1932 Springfield (2) MA Springfield Gas Light Company 1966
428 E9 35 1932 Duluth (2) MN Duluth Steam Corporation
Duluth Steam Cooperative (1978) 

Being converted to hot water
Operated by Duluth Energy Systems
429
36 1932 Cleveland (2) OH Medical Center Company
Medical Center Company
430


1933 Taunton MA City of Taunton 1970
431

1935 Mountain Iron MN City of Mountain Iron 1980
432

1936 New Prague MN City of New Prague 1979
433

1937 Holyoke MA City of Holyoke 2010
434

1937 Escanaba MI City of Escanaba 1966
435

1937 Bluffton OH Village of Bluffton 1945
436

1938 Concord NH Concord Steam Corporation 2017
437


1939 Jackson MN City of Jackson 1975
438


1939 Grand Island NE City of Grand Island 1980
439 E3
1943 Piqua (2) OH City of Piqua 2006 Converted to hot water in 1983
440


1945 Livingston MT Miles Land and Investment Company 1960
441

37 1945 Manitowoc WI City of Manitowoc
Manitowoc Public Utilities
442


1946 Olympia WA Olympia Steam Heating Company 1963
443

1948 Jamestown (1) NY City of Jamestown 1969
444


1949 Kalispell MT Central Heating Company 1959
445

1951 Chicago IL Medical Center Steam Company 1981 Transferred to UI Medical Center after contract expiration.
446

1955 Rice Lake WI Rice Lake Steam Corporation 1989
447
38 1962 Hartford (2) CT Hartford Steam Company
Hartford Steam Company
448 H3

1964 Nassau Bay TX Houston Natural Gas
Thermal Systems (1978)
1990

449

39 1965 Washington (Watergate) DC Washington Gas Light
Vicinity Energy (2020)

Owned by Vicinity Energy
450 H4
40 1966 Los Angeles Century City CA Central Plants, Inc
Sampra Energy
Trigen (2006)
Veolia
Enwave (2017)

Enwave
451 H5 41 1966 Los Angeles  Bunker Hill CA Central Plants, Inc
Sampra Energy
Trigen (2006)
Veolia
Enwave (2017)

Enwave
452
42 1966 Pittsburgh (3) PA Equitable Gas-Energy Company
Thermal Ventures (1993)
NRG Pittsburgh (1999)
Clearway Thermal (2019)

Owned by Clearway Thermal
453
43 1967 Gates NY Eastman Kodak Company
RochesterTechnology Park Utility Co. (2002)

Rochester Technology Park
454
44 1968 Tucson AZ City of Tucson
Owned (mostly) by City of Tucson
Operated by Clearway Thermal
455
45 1969 Houston (1)
TX Houston Natural Gas
Thermal Energy Corporation (1978)

Texas Medical Center
Thermal Energy Corporation
456
46 1970 Oklahoma City OK Thermal Systems, Inc. (Oklahoma Natural Gas)
Trigen (1989)
Veolia (2015)

Owned by Vicinity Energy
457
47 1970 Tulsa OK Thermal Systems, Inc. (Oklahoma Natural Gas)
Trigen (1989)
Veolia (2015)

Owned by Vicinity Energy
458 H6 48 1972 Hempstead NY Nassau County
Trigen (1989)
Nassau Energy Corporation


459
49 1974 Nashville TN Nashville Thermal Transfer
City of Nashville (2003)

Metro Nashville District Energy System
460 G2 50 1981 Philip SD Philip Geothermal Corporation
Geothermal hot water
461 G3 51 1982 Susanville CA City of Susanville
Geothermal hot water
462 G4 52 1982 Pagosa Springs CO City of Pagosa Springs
Geothermal hot water
City Geothermal Division
463 G5
53 1982 Elko NV Elko Heat Company
Geothermal hot water
464 G6
54 1983 Boise (2) ID Boise Geothermal
City of Boise Geothermal (1988)

City of Boise Geothermal
465


1983 Aitkin MN Aitkin Iron Works | ASHCON 2010
466 H7
55 1983 Trenton NJ Cogeneration Development Corporation
Trigen

Owned by Vicinity Energy
467 G7 56 1983 Saint Paul (2)
MN Energy Park Utility Company
Energy Park Utility Company
468 G8
57 1984 San Bernadino CA City of San Bernadino
Geothermal hot water
Geothermal System
469 E4 58 1984 Jamestown (2)
NY City of Jamestown
Jamestown Board of Public Utilities
470 E5
1986 Provo UT City of Provo 1990
471

59 1987 Rochester (3) MN Olmsted County District Energy System
Olmsted County Waste to Energy Facility
472 E6 60 1987 Buffalo (2) NY City of Buffalo

473 E7 61 1988 Hartford (3) CT Energy Networks, Inc.
State of Connecticut (2008)

Capitol Area System District Heating and Cooling Loop
474
62 1989 Lincoln (2) NE District Energy Corporation
District Energy Corporation
475 G9
63 1991 Klamath Falls (2) OR City of Klamath Falls
Geothermal hot water
City of Klamath Falls Geothermal
476
64 1996 Atlantic City (2) NJ Atlantic Thermal Systems
Pepco (2002)
ACM Energy Partners, LLC (2016)

Midtown Thermal Control Center
477
65 1999 Houston (2)
TX Union Station District Energy Plant
Northwind
Enwave

Enwave
478 G10
66 2013 West Union IA City of West Union | West Union District Energy
Geothermal hot water with heat pumps in each building
479
67 2014 New Orleans LA New Orleans District Energy
Enwave
480 E8
68 2014 Montpelier VT City of Montpelier | State of Vermont
Hot water
Montpelier District Heat


2020-2021 Morris A. Pierce