Dan Rittenhouse has launched Catalina Energy Capital, a renewable energy investment bank focused on clean energy financing and advisory. The company announced three closed deals, including a 500 MW solar and storage portfolio sale for SolarStone, a $130 million corporate raise for Novel Energy Solutions, and equity and debt funding for Solar Collective. Catalina aims to advise on 4 GW of solar and storage assets by year-end, providing financial services across debt, equity, M&A, and tax credits.