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District Heating

District Energy St. Paul currently provides heating service to more than 185 buildings and 300 single-family homes.



Customer Data

Signed customer buildings:

187

Mount Airy homes:

298

FY 2010 energy sales:

343,871 MWh

Total Building Area Served:

31.7 million sq. ft.

Heat Sources

Main plant, 76 West Kellogg Boulevard

Two coal/gas-fired boilers:

88 MW

Four gas/oil-fired boilers:

106 MW

Combined heat and power plant:

65 MW

Regions Hospital plant

Four gas/oil-fired boilers:

25 MW

Mobile boiler (temporary and/or backup):

5 MW

Total:

289 MW

Piping

Type:

prefabricated steel pipe with polyurethane insulation encased in polyethylene jacket

Diameter:

3/4-inch to 28-inch

Length:

105,200 feet each, supply and return

Volume:

915,000 gallons

Operating Data

Supply Temperature:

190-250 degrees F

Return Temperature:

140-160 degrees F

Supply Pressure:

180 psi

Minimum pressure differential:

20 psi

Reliability rate:

99.997%

More Information

Hot water district heating delivered to customers year-round for space heating, domestic hot water and industrial process use.

District Heating Fact Sheet