We are here to guide you on everything you need to know to go solar, and increase the value and efficiency of your property most effectively.
From first question to final touches and switching “on, we handle every step, so choosing what’s best for the island is consistently rewarding for you and your property.
Who we work with
Residential Installations
From traditional Siasconset cottages to modern Cliff Road homes, we design systems that meet HDC requirements, are aesthetically considered and protect your property value for the long term
Residential Installations
Commercial Installations
Enterprise-scale solutions for Nantucket’s commercial properties. We handle complex permitting and stakeholder timelines.
Commercial Installations
our installations
Solar panels, battery backup, and EV chargers all under one installation.
We created the infrastructure we wanted to see on the island, using the best of American-made high-quality products.
Panels
Silfab
North American–made
Premium tier
30-yr product + performance warranty
Qcells
North American–made
Value-premium
Proven track record
Inverters
SolarEdge
DC-coupled architecture
PV and battery share the DC bus, so battery charging is single-conversion (higher round-trip efficiency) and every panel is optimized at the module level.
~90% US-made
Our standard
Enphase
microinverter alternative: distributed
25-yr warranty
Sunlight backup
Racking
Iron Ridge
UL-listed all black aluminum rail, corrosion-resistant hardware for salt air.
Rooftop racking is usually installed using the FlashFoot2 attachment system, which incorporates integrated mechanical flashing to provide long-term roof protection and minimize the risk of water intrusion. ACK Smart considers mechanically flashed roof attachments to be a best practice for rooftop solar installations, particularly in harsh marine environments. We review every roof and substructure to determine the best application for your project.
Storage
SolarEdge Home Battery
DC-coupled with the SolarEdge inverter (single-conversion efficiency)
grid-tied backup
single-vendor
ConnectedSolutions-eligible
Savant (PS20 / PS50)
luxury, whole-home, smart-home ecosystem
true off-grid capable
local (Hyannis)
Not ConnectedSolutions-eligible
key nantucket insights from ack smart
$4000
Average annual savings for a nantucket homeowner10.5 GWh
Clean energy produced by ACK installs80-90%
electricity bills eliminated
41%
Rise in island electric rates since 2020The average incentive value on a median install is $19,000
15%
Massachusetts Credit
Up to $1,000/year additional state credit on your solar system installation.
$6k
Local Nantucket Rebate
The Town of Nantucket offers rebates covering a portion of installation costs.
$5-$20k
Smart Program
The Solar Massachusetts Renewable Target (SMART) 3.0 program provides a fixed payment for every kWh your system produces, paid monthly or quarterly by your utility for 20 years.
intentional design
Every site is different. Especially here on Nantucket.
The homes on this island are designed with intention. Your solar system should be too. Roof pitch, open land, mature vegetation, harbor views, neighbor sightlines, HDC considerations: we assess all of it before a panel is placed. For rooftop systems, we follow the natural geometry of your roofline so the array reads as intentional, not incidental. When the roof isn't the right fit, a ground-mounted system can be sited low and oriented true south, tucked behind natural grade or vegetation so it's barely visible from the road or the water. The goal is always the same: a system your neighbors might not notice, but your utility bill certainly will.
How it Works
From first call to first kilowatt
Every ACK Smart installation follows the same five-step process with our team handling permits, HDC submissions, and utility interconnection so you don’t have to.
Typical timeline
6–12 weeks from assessment to switch-on. HDC approval determines the timeline. Our 75% first-submission success rate keeps projects on schedule. We’ll give you a project-specific timeline at your assessment.
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Free assessment
Local site-visit
Roof evaluation
Energy audit
System design
Custom layout
HDC-compliant renderings
Proposal
Permits & HDC
We handle all submissions and approvals
Installation
Island crew, typically 1–3 days on-site
Monitoring & Support
Remote monitoring, prompt, local service, proactive maintenance
Ready to slash your electric bills and future-proof your Nantucket property?
We are the leading on-island provider of solar systems built for Nantucket. Contact us today for a free no-obligation consultation.