Energize Nexus is a university spin-off building software that optimizes how renewable plants participate in power markets. Our multistage stochastic optimization plans across scenarios to choose the best markets and identify the bidding strategy that maximizes financial performance. We model PV, wind, BESS, and the hydrogen chain, operating across day-ahead, intraday, imbalance, and ancillary services. We are able to help IPPs, aggregators, and on-site green-hydrogen producers increase revenues by up to 20% while reducing risk.