Simplifying finance vehicles for renewable energy will lure more investors and lower the costs of capital. “Renewable power requires a lot of explanation,” Jim Barry, the head of renewable power investing at BlackRock Inc., said during a panel discussion today at the Bloomberg New Energy Finance conference in New York. “If you’re explaining, you’re losing.” Renewable-energy investment this year may rise to $300 billion from $254 billion in 2013, according to Bloomberg New Energy Finance. Installations...