A cooperative buying campaign is pushing again to get discounted solar panels on more Kenai Peninsula roofs . Volunteers from Solarize the Kenai mobilized 82 property owners last year to outfit their homes and businesses with panels. It’s a collective effort, so interested homeowners sign up in groups to get group rates. Timm Johnson is a volunteer with the group. At an informational meeting Wednesday, he said solar panel technology became cost effective for Alaskans a few years ago. But with