US distributed generation platform Aspen Power Partners, which has US private equity firm Carlyle <a href="https://renewablesnow.com/news/carlyle-pours-usd-350m-into-dg-solar-firm-aspen-power-803588/" target="_blank">among its backers</a>, on Monday said it has bought an over 41-MW DC portfolio of commercial solar projects in New York and Pennsylvania from Solar Site Developers.