The second SOLMATE newsletter introduces specifications for its demonstrators, focusing on cost-effective, decentralized energy solutions using second-life components. The three business models include Small Off-grid & Plug-in PV (PiPV), AgriPV, and Low-income communities demo. Each demonstrator's testing assumptions and technical feasibility are outlined, though the current volatility of energy prices and technology availability raises questions about the longevity of the results. Read more in the newsletter.