<p>Carbon capture, recovery and conversion are typically done by three separate steps, which notably increases the total energy consumption and capital costs. Here we propose to indirectly convert (bi)carbonates, which are carbon-rich sorbents in alkaline carbon capture, into valuable chemicals in a porous solid electrolyte (PSE) electrochemical CO₂ reduction (CO₂RR) reactor while eliminating the energy-intensive CO₂ recovery step. Specifically, direct feeding of (bi)carbonates into the PSE layer while performing CO₂RR allows simultaneous CO₂ regeneration within the PSE chamber. Impressive electrochemical performance was demonstrated, with up to 96% formate Faradaic efficiency, 95% CO₂ recovery efficiency and 86% bicarbonate-to-formate conversion. Reactor versatility allowed us to obtain up to 5.0 M formate, ~50% higher than bicarbonate solubility and C₂₊ products with 73% selectivity, setting the state of the art for bicarbonate-fed CO₂RR. Operating for at least 100 hours at 100 mA cm⁻² averaging 82% CO₂ recovery and 89% Faradaic efficiencies, our reactor adds economic value to alkaline carbon capture and CO₂ conversion, bringing both closer to practical implementation.</p>