Sunnova Energy International Inc. added solar-plus-storage service to its portfolio in South Carolina and marked its entry into Colorado and New Hampshire markets with its product offerings.

The solar-plus-storage service comes with a 25-year warranty by Sunnova, while add-on solar battery storage offering comes with the manufacturer's 15-year warranty, according to a Jan. 17 news release.

When fully charged, Sunnova's solar and storage products can run for 10 to 13 hours.