Thursday, January 19, 2017

Rooftop Solar Arrays on Five Fire Stations Expected to Reduce Electric Costs 30% for Less Than $1,500

The Dubuque City Council recently approved agreements with Eagle Point Solar of Dubuque for the installation of rooftop solar arrays on five of the City’s six fire stations. The project is expected to reduce electricity costs at the stations by more than 30 percent.

The contract award follows a request for proposal process which generated responses from five firms. The City Council unanimously approved a power purchase agreement and a collateral assignment agreement with Eagle Point Solar for the installation of rooftop solar arrays....

Once installed, the arrays are expected to permanently reduce the City’s cost of each kilowatt hour (kWh) of electricity utilized in the five fire stations by more than 30 percent. Specifically, the terms of the contract include a $0.085/kWh initial rate with a three percent inflation rate. This compares with the current aggregate Alliant Energy rate for the fire facilities of $0.116/kWh. The only upfront funding required for this project from the City is for equipment upgrades to allow internet connectivity for the solar arrays, not to exceed $1,500.The percentage of electricity use offset and carbon dioxide offset at each station varies, due to available roof space and usage at that site:

  • Headquarters 66.15 kW Electric Offset 37% CO2 Offset 1,651 tons
  • Station 2 35.28 kW Electric Offset 96% CO2 Offset 887 tons
  • Station 3 27.72 kW Electric Offset 55% CO2 Offset 697 tons
  • Station 4 15.75 kW Electric Offset 26% CO2 Offset 377 tons
  • Station 5 5.04 kW Electric Offset 28% CO2 Offset 128 tons
  • Total System Size 150.8 kW Carbon Offset 3,740 tons
According to Eagle Point Solar, the combination of the five solar arrays, over their lifetime, will offset the equivalent of: planting 87,141 trees, the reduction of 7.48 million automobile miles driven (or 381,480 gallons of gasoline), recycling 11,818 tons of waste rather than landfilling it, displacing carbon dioxide emissions from the annual electricity use of 425 homes, or 1,822 tons of coal burned.
“The Fire Department has focused, first, on energy efficiency in their facilities,” said City of Dubuque Sustainable Community Coordinator Cori Burbach. “Installation of solar arrays is an opportunity for us to continue to reduce utility costs while also helping the community reach our goal to reduce greenhouse gases 50 percent by 2030.”
Installation is expected to begin in late January 2017 and be completed in late February, weather permitting.

City of Dubuque Iowa Press Release dated January 11, 2017
via/hat tip Sustainable City Network

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