The yieldco and asset-backed security models could both be highly relevant. : Last month, I spoke at the 17th Annual Wall Street Green Summit, an event focused on exploring the latest developments in clean energy finance. The summit included industry experts who discussed an array of exciting developments throughout the renewable energy sector. My presentation focused on capital market strategies in distributed generation and wanted to share some highlights. First, some perspective. Clean energy has grown rapidly in the last decade, up to 18 percent of total energy deployment from 9 percent in 2008.