ReVision Energy recently installed an array of 1,728 solar panels capable of producing 596 kilowatts of power, offsetting 86 percent of the Limestone Water and Sewer District’s electricity costs. Credit: Chris Bouchard | Aroostook Republican & News

Limestone is continuing to see savings as it adopts more progressive energy alternatives. Town officials currently are considering switching to LED street lights, and last year, contractors broke ground on a 1,728 panel solar array capable of producing 596 kilowatts of power, offsetting 86 percent of the Limestone Water and Sewer District’s electricity costs.

The Water and Sewer District, a quasi-municipal entity based in Limestone, already has saved more than $3,000 on energy costs with the solar panels in just three months, according to one official’s estimates.

Three parties are primarily responsible for this solar project: the Limestone Water and Sewer District, ReVision Energy and Aligned Climate Capital LLC.

Officials with the Limestone Water and Sewer District contacted ReVision Energy last year to head up the solar construction project. Then Aligned Climate Capital, an investor focused exclusively on clean energy and climate-friendly alternatives, was brought in to fund the project through a “power purchase agreement.” That allows the town to buy the electricity generated at the site at a lower cost than they would have otherwise paid Emera Maine.

With the funding secured, ReVision Energy installed the solar arrays at no upfront cost.

Jim Leighton, Limestone Water and Sewer District’s superintendent, said the array has been up and running since Dec. 19, 2018, and that the panels already are producing more energy than initially anticipated.

Limestone Town Manager Elizabeth Dickerson also was pleased with the project’s progress.

“I think any time we can use renewable energy to meet our energy needs, it’s a great thing,” she said. The more we can do in this area for the town, the better.”

Chuck Kelley, a member of the Water and Sewer District board of trustees, echoed Leighton’s sentiments about production being higher than anticipated.

“We were looking at approximately five to six thousand a year in savings,” he said, “and right now it looks like we’re at about $3,300 for the first three months of the year.”

He said these initial projections are particularly good news since they are based on power generated during one of the worst periods of the year in terms of sunlight.

“I have to confirm a few things but that’s what it’s looking like,” he said. “Even if it’s off a little bit, it’s still pretty good.”

Kelley said that while the power purchase agreement could continue for 25 years, the district has an option in the contract to buy out the solar array after five years and own it outright at a discounted rate that would knock 40 percent off the installation cost.

Between now and then, Kelley said the Water and Sewer District is going to put away the money saved via the array and use it toward that purchase.

The 3.5-acre site also is within the district’s wellhead protection area, a zone where not many projects can be built due to the potential for spills and hazards. Solar arrays, however, are one of the few projects that can be built in this type of zone.

Representatives of the community, ReVision and the water districts of neighboring towns celebrated the success of the project in Limestone on Thursday. Revision Energy employees made a presentation about the project to the group and then gave a tour of the array.

Holly Noyes, public relations manager at ReVision Energy, said the event was not only a celebration but also intended to get the word out to neighboring communities as well.

“Limestone Water and Sewer District wanted to host this event for other districts,” Noyes said, “as well as for people in other communities and other town officials. The presentation will cover different opportunities for water and waste treatment districts in nearby communities, so those officials can learn about the details of this project and how it came together.”

Kurt Penney, a commercial solar consultant, began the presentation by giving a brief overview of ReVision Energy, a company that started about 15 years ago as “a couple of guys in a garage” and now employs over 250 people. The company, which is completely employee-owned via an Employee Stock Ownership Plan, is a certified B Corporation, meaning that its mission goes beyond profit.

“We’re not just trying to sell more solar, but also trying to change the paradigm,” Penney said. “Our mission statement is to accelerate and lead the transition to a clean, renewable energy economy in New England, and I’d say we’re officially in northern New England today.”

Bryan Byrne, the project manager, said he was “one of those guys who started in the garage,” adding that it has been nice to see the company’s progression. Byrne then provided an overview of how the project came to fruition by showing the crowd photos taken during construction.

Everything began in a field where the former industrial park was located. Leighton and the Water and Sewer District crew mowed the field as the ReVision team scheduled to have materials delivered.

“We organized the materials and then staked out the field so a surveyor could come in,” Byrne said. “Then we brought in the big machines and started driving piles.”

After that, the crew took all of their organized materials and began to erect the structure.

Of all the pictures, Byrne said his favorite was of the main distribution panel indicating that the solar array was successfully drawing power.

Looking back on the project, Noyes said she and the ReVision team had “a great time working with the wonderful people here in Aroostook County.”

“Our team loved being up here,” she said. “We are looking forward to working with other water districts, and have been in early conversations with other municipalities as well regarding solar energy. We are more than excited to be working here in Aroostook County and helping Maine move forward as we look at solar energy.”

This story was originally published in The County.