Build a solar power plant to help run a water treatment plant!

RMU Announces Solar Plant Completion

Rochelle Municipal Utilities, in Rochelle, Illinois, has. started operation of a large Photovoltaic Solar Plant providing power to their water treatment facility. This is a great example of a project that should be done in more places.

In the Spring of 2014, RMU was awarded a $500,000 grant from the Illinois Clean Energy Community Foundation to fund construction of the Solar Plant. ICECF provides grants for up to $2/watt or 60% of the system and its installation costs, whichever is less. As a result of the competitive bidding process, Eagle Point Solar was awarded the project.

“Rochelle’s 312 kW Solar Photovoltaic plant is one of the larger Public Power Utility owned plants in Illinois. This plant will provide renewable energy to the water treatment plant” stated Business & Financial Analyst Dan Westin. “Treatment plants require a lot of energy to make clean water. Rochelle will continue to explore financially sound projects in the area of renewable energy.”

As a result of this project, Rochelle Municipal Utilities has been selected as a recipient of this year’s Northern Illinois Renewable Energy Summit & Expo’s “Leadership by Example” award.

You can view the plant’s output real time here.

The water treatment plant has a peak energy demand of about 420 kW and the PV system can cover over half of that. During summer months, when the Sun’s energy is maximally available, the sun will provide about 45% of the plant’s energy requirements. It helps that the plant operates mainly during daylight hours, so this is a good fit for a solar installation.

According to Dan Westin, of Rochelle Municipal Utilities, “the unique part of Rochelle is that as a Muni owned utility it can include the grid capacity cost savings in the business case as well the solar energy credits marketed in the Pennsylvania market. The payback is less than five years that way. So 15 years of free solar energy. The cost of producing clean water goes down.”

Dan also told me that there are similar projects in Galena and Rockford Illinois.

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