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ACK Smart is the premier solar installer for Nantucket Island. Leading the way in generating clean, renewable power for the island community since 2011, we walk alongside our clients throughout the entire experience. ACK Smart is customer focused, locally based, and always looking to make the Grey Lady a little greener.

Going green is a good thing. Saving some green? Even better.

Why ACK Smart?: About Us
Why ACK Smart?: Video


Investing in solar not only saves you significant money but also empowers you to control your energy consumption. Proudly offering both commercial and residential solutions, ACK Smart is your gateway to a sustainable future.


At ACK Smart Energy, we pride ourselves on delivering unparalleled customer service. Our dedicated 24/7 support is powered by a team of entirely local staff, ensuring personalized, prompt, and reliable assistance every time.


Utilizing only top-tier quality products, we guarantee optimal energy output and enduring performance. Trust in our commitment to deliver unparalleled energy solutions for a sustainable future. Choosing ACK Smart means choosing quality.

Why ACK Smart?: List

"ACK Smart did a great job on our solar system, which was installed in Sconset earlier this year. Cleared the HDC approval process with nary a hitch and the installation was done in no time. The system is now cranking out lots of free power and should pay for itself in under a decade. Tim and the rest of the team are responsive and easy to deal with. Would highly recommend."

John Lancaster

"Entire team is very professional and taking care of all docs to make the process very easy. Our energy bill has been reduced to zero and I can only recommend using ACK Smart."

Soren Sorenson

"These guys are the best. Excellent technical knowledge, high quality work product and super responsive after market. Highly recommend!"

Paul Gaynor

"ACK Smart installed solar panels on two of our properties, we are very happy with their workmanship and service."

John Sullivan

"Thank you to the team at ACK Smart. They did a wonderful job of helping us through the process from start to clean energy generation!"

Alastair Borthwick

"ACK Smart Energy gave us comprehensive installation and service. We turned on our 10KW system in January 1015 and it keeps making electricity and income for us with zero maintenance. We love our panels."

Jack Weinhold

"Celebrating going green on power! No bills for several months. December's billed use was 2000KW less than last year's. Look forward to years of savings! They preformed a professional installation, follow through with needs and we are now saving monthly with no or greatly reduced electric bills. 🥰"

Homer Ray III

"ACK Smart Energy installed solar panels on our home over 3 years ago. Zack walked us through the processes and accompanied us to the Historic District Commission. We were the first large roof installation on the island and there was some initial reluctance on the Commission's part. Then, Zach helped us with the paperwork for the rebate and set us up with the Massachusetts board which gives us SRECs when we produce extra energy (which is every quarter so far.) We could not be happier with the service we got. And...we love our panels."

Barbara Ann White

"ACK Smart Energy provided complete service including all the paperwork, so we didn't have to do anything. Harvesting clean energy now and enjoying the benefits."

Alesia My

"ACK Smart Energy installed a solar array at my house several years ago. It has worked flawlessly--up to 7 Kw on sunny days and easily 3 Kw on foggy ones. No electric bill and quarterly payments for power we feed back into the grid! The array came with a SENSE monitor which tells us not only how much power we're generating, but also how much we're using and how. As in, the fridge is currently drawing 100 watts. It helps to be conscious of energy use throughout the day. ACK Smart helped me make my home a place that gives energy back to the community. If only the whole island was solar powered!"

Meg Glidden

"ACK smart installed 5 kW of solar panels on our office's roof several years ago. We haven't paid an electric bill yet, and get paid quarterly for our Solar Renewable Energy Credits. It all adds up! 5 stars, highly recommend."

Anne Miller Kuszpa

"We installed solar panels with ACK Smart Energy. Zach took care of all the details and paperwork and was responsive to our questions. He shepherded the process through the town boards and assisted us in getting set up with the rebates and the SRECs. We LOVE our panels and have not paid an electric bill since installation. More than that, we love being green and have now bought an electric car to go with them."

Barbara White

Why ACK Smart?: Testimonials
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