Can switching to solar power really save you money? If you've asked that question, you might be able to get answers tomorrow at a residential open house in Hawai'i Kai.

Sunetric, formerly Suntech Hawaii, recently installed at the home a photovoltaic system and solar water heater, which, according to the press release, have saved the homeowners about $300 a month on their electric bill.

Sunetric experts will be on hand to answer questions about cost savings, along with other benefits of residential solar installations.

The open house will be held tomorrow from 11 a.m. to 4 p.m. at 7123 Hawai'i Kai Drive.w