Hawaii Electric Companies proposed a plan this week to triple rooftop solar on the islands it serves by 2030 and reduce utility bills by 20 percent. But the solar industry isn’t applauding the effort yet.

While Hawaii would get more than 65 percent of its power from renewable sources by 2030, the plan calls for measures that could increase costs for home and business owners who install solar, offsetting the benefits.

Solar advocates and some community leaders are skeptical the plan is a good one.