District Energy St. Paul is a nonprofit utility providing energy services to downtown Saint Paul. The heating and cooling network serves more than 200 buildings in the central business district and across the river to a secondary area of commercial, light industrial, and residential development. The customer base includes higher education, hospitals, Fortune 500 companies, and multi-family residential as well as hotels, entertainment, and sporting venues.
Developed as a public-private partnership, District Energy has worked closely with the City of Saint Paul, Saint Paul Port Authority, local businesses leaders, and civic partners to offer competitive energy solutions and cost-based rates that have played a critical role in development for the city.
Heating and cooling customers pay less for energy today than they did 36 years ago, when adjusting for inflation.
District Energy has become a showcase for energy efficiency through continued efforts to evolve, reinvent, and integrate sustainable solutions that have earned the operations a global reputation, including recognition from the United Nations Environment Programme.
District Energy is the parent company to Ever-Green Energy and has contracted the Ever-Green team to provide operations and management services for the District Energy operations.
Ever-Green has built a deep knowledge of utility and energy system management from the decades of experience with this flagship system.
Ever-Green provides comprehensive operation and management services, energy engineering, and project management, as well as business operations, finance, legal, and customer and community outreach.
|Buildings served with district heating||195|
|Single family homes||298|
|Current billed demand||177 megawatts|
|Total building area served||32.2 million square feet|
|Six gas/oil-fired boilers||194 MW|
|Combined heat and power plant||65 MW|
|Regions Hospital Plant (gas/oil-fired)||25 MW|
|Mobile boilers (temporary and/or backup)||7.5 MW|
|Solar thermal||1.2 MW|
|Piping Materials||Prefabricated steel pipe with polyurethane insulation encased in polyethylene jacket|
|Diameter||3/4-inch to 28-inch|
|Supply Temperature||Supply Temperature|
|Return Temperature||140-160 degrees F|
|Supply Pressure||180 psi|
|Buildings served with district cooling||102 buildings|
|Building Area Served||19.4 million sq. ft.|
CHILLED WATER SOURCES
|Main plant, 76 West Kellogg Boulevard|
|Seven electric chillers||15,387 tons|
|10th and Sibley Plant|
|Three electric chillers||7,000 tons|
|Chilled water storage systems||10,800 tons|
|Satellite chillers||5,000 tons|
|Piping Materials||Steel pipe wrapped in protective coating with cathodic protection|
|Diameter||3-inch to 30-inch|
|Volume of distribution system||1,115,000 gallons|
|Volume of storage system||6,700,000 gallons|
|Supply Temperature||42 degrees F|
|Return Temperature||56 degrees F|
|Supply Pressure||150 psi|
|Minimum pressure differential||15 psi|