Environment

Nexamp found a faster way to build solar – it did the utility’s job, too

Nexamp found a faster way to build solar – it did the utility's job, too

Nexamp just pulled off something that could speed up clean energy deployment across the US – and potentially lower costs for everyone. The Boston-based solar developer just finished building three new solar farms in Maine and Massachusetts. But instead of waiting on the utility to handle all the grid hookup work, Nexamp did it themselves.

That might not sound groundbreaking at first, but in the world of renewable energy, it’s a pretty big deal. Normally, utilities are in charge of any grid upgrades and interconnection work needed before a new solar project can start sending power to homes and businesses. That process can be very slow and expensive.

Nexamp’s new approach, called “self-performance,” flips the script. It lets developers take on some of that work, like ordering and installing equipment, so they don’t have to sit around waiting for the utility to schedule it. That means solar farms can get online faster, which gets clean power to the grid sooner and keeps project costs in check.

The three projects that kicked off this self-performance effort are:

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  • Hartland Solar – 1.2 MW DC in Hartland, ME
  • Barre Road Solar – 1.3 MW DC in New Braintree, MA
  • Summit Farm Solar – 2.6 MW DC, also in New Braintree

Nexamp didn’t go rogue – they worked closely with Central Maine Power and National Grid on the interconnection designs, safety standards, and technical specs. But by handling the actual procurement and construction, Nexamp had way more control over cost, timing, and supply chain headaches.

“Self-performance lets us take much greater control over interconnection procurement and construction,” said Daniel Passarello, Nexamp’s lead consulting engineer for grid integration. “We can move much of the interconnection work forward at the same time as the solar farm build instead of treating them as separate. That helps us bring projects online faster and stay closer to budget.”

It also helps that Nexamp already has solid relationships with suppliers. Instead of going through multiple layers of utility procurement, they can go straight to the source, fast.

That kind of streamlining is exactly what the solar industry needs right now. Community solar is booming – as of the end of 2024, nearly 8 gigawatts of it have been installed across the US, according to the the Solar Energy Industries Association (SEIA), and that number is expected to almost double by 2030. But bottlenecks in the interconnection process slow things down.

Sara Birmingham, VP of state affairs at SEIA, called Nexamp’s move a step in the right direction. “We must modernize and streamline the interconnection process to keep pace with fast-growing demand,” she said. “Self-performance is one of several innovative approaches that can accelerate project timelines and lower costs, which benefits all ratepayers.”

Read more: Walmart and Nexamp are rolling out 31 solar farms in 5 states


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