Combined financial and environmental optimization of a trigeneration system

This paper firstly studies the influence of variations in fuel tariffs and GHG emissions grid electricity on financial environmental metrics, demonstrating divergences when considered alone. Secondly, a combined economic objective function is proposed, yielding good compromise between both concerns. Real data are available from Brazilian Northeast building where electricity, heat (hot water), cooling important for comfort well-being. When addressing bicriteria optimization, consideration 20% one metric enormously improved overall result, with only slightly worsening other metric. possible because optimization scheme can choose rich pool physical operational scenarios.