Interconnection, Permitting, and Hawaiian Electric Programs
Commercial interconnection in Hawaii is more involved than a residential application.
Depending on system size, your project may require an engineering review from Hawaiian
Electric, updated single-line drawings stamped by a licensed engineer, and a building permit from your county: the City and County of
Honolulu on Oahu, the County of Maui, or the County of Hawaii for Big Island properties.
Timelines shift
with utility queue volume, so we set expectations up front rather than promising a date we
cannot control.
Because full net metering is closed to new customers, most Hawaii business solar panels are
designed around self-consumption. In practical terms, that means sizing the array to match
your daytime load profile rather than your annual total. A business that runs
refrigeration, air conditioning, or machinery during daylight hours is close to an ideal
solar customer, because production and demand line up naturally. If your load is heaviest
after dark, storage becomes part of the economic case rather than an add-on. Our explainer on the end of net metering covers what changed and why design assumptions shifted.
Commercial customers should also review demand charges on their utility bill, not just
energy charges. Peak demand can represent a large share of a monthly invoice, and pairing
solar with battery storage lets you shave those peaks. We model both line items so the savings projection reflects your
actual rate structure instead of a generic average.
Commercial and Multifamily Properties Across Our Service Areas
We consider all property types after inspection approval, including restaurants,
warehouses, industrial facilities, retail centers, professional offices, hospitality
properties, agricultural operations, churches, nonprofits, and multifamily buildings. Each
has a different load profile, ownership structure, and approval process, so the design
changes accordingly.
Our commercial and multifamily service area is Oahu, Maui and the Big Island's west side.
Being locally owned means our team remains reachable after installation.
Oahu: commercial rooftops, carports and
multifamily buildings from Honolulu and Kapolei to the Windward side. See our Oahu solar page for the island we have served the longest.
Maui: businesses, managed communities and
agricultural properties from Kihei and Wailuku to Lahaina and Upcountry. Learn more on our Maui solar page.
Big Island: commercial and multifamily
solar in Kona and West Hawaii, including Kailua-Kona, Holualoa, Kealakekua and Waikoloa.
Hotels, retail centers, offices, farms and condo associations on the west side get the same
site assessment, design and permitting support as our Oahu and Maui clients. Big Island
pricing and project timing are confirmed in your proposal after the assessment. Visit our Big Island solar page for more on the area.
Monitoring and Long-Term Maintenance
A commercial array is a revenue-producing asset, and unmonitored downtime is lost money.
Every system we install includes production monitoring so you can see output by string or
inverter and catch a fault quickly instead of discovering it on a utility bill three months
later. For larger sites we set up alerting so issues surface the same week they happen.
Ongoing care is mostly about cleanliness and electrical inspection. Salt spray, red dirt,
and bird activity all cut production, and commercial arrays are large enough that a few
percent of soiling loss adds up. We offer scheduled panel cleaning along with solar repair and maintenance for commercial clients, including systems originally installed by companies that have since
left the islands. If you inherited an array with no service history, we can inspect it and tell
you plainly what condition it is in.