2017 Saw Big Surge in Solar Installations

January 18, 2018, 12:30 PM HST
* Updated January 18, 6:37 PM
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Hawaiian Electric Companies’ reports that more than 100 megawatts of solar were installed across the service territories in 2017, a 19% jump from the previous year, helping to move the state closer to a clean energy future.

Cumulative Installed PV as of Dec. 31, 2017

At the end of 2017, Hawaiian Electric, Maui Electric and Hawaiʻi Electric Light recorded 695 megawatts (MW) of cumulative installed solar, up 109 MW from 2016. The megawatts of solar added last year produce power equivalent to that used by about 32,000 homes.

The solar total includes 82,000 private rooftop solar systems connected or approved, up 3.6% from 2016. It also includes the addition of the 27.6-MW Waiʻanae solar facility, which provides some of the state’s lowest priced renewable energy.

Private rooftop solar installations and approvals as a percentage of total customers rose in 2017. By the end of 2017, 20% of residential customers at both Hawaiian Electric and Maui Electric have rooftop solar installed or approved for installation, up from 19% at both companies in 2016. The percent of Hawaiʻi Electric Light residential customers have solar installed or approved is 16%, up from 15% in 2016.

“We ended 2017 with the largest year-to-year increase of installed solar since 2013 and we anticipate even higher numbers by the end of this year,” said Hawaiian Electric senior vice president of customer service Jim Alberts. “We’re excited about new solar programs on the horizon such as Smart Export and CGS+, community-based renewable energy and new gridscale projects underway on Oʻahu and Maui. And we continue to improve and streamline the rooftop solar application process for our customers.”


Since the launch of the online Customer Interconnection Tool last fall, customers have been able to submit online applications to install private rooftop solar under the Customer Self-Supply program. The online application tool is believed to be the first of its kind to provide a seamless process allowing customers to follow the status of their applications from start to finish.


The companies anticipate continued growth in private rooftop solar and utility-scale projects. On Oʻahu and Maui, 135 MW produced by six separate projects will come online this year, including Hawaiian Electric’s 20-MW solar facility at Joint Base Pearl Harbor-Hickam. That project will produce the lowest-priced grid-scale solar in the state for the benefit of all Hawaiian Electric customers.

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