The PV-coupled hydrogen system in Picea directly links solar energy to hydrogen production. During periods of high solar output, an alkaline electrolyzer converts excess PV power into hydrogen, which is stored in high-pressure tanks (e.g., 300 bar) or metal hydride systems. This synergy maximizes solar utilization, addressing the intermittency of PV by converting variable electricity into storable chemical energy. The Picea 2 model supports larger PV installations, doubling output to meet increased demand from heat pumps and electric vehicles. This integration ensures that up to 80% of solar energy is converted and stored, significantly enhancing self-consumption rates.