Opportunities and economic assessment for a third-party delivering electricity, heat and cold to residential buildings

In the present context of energy transition towards a carbon neutral society, residential sector plays an important role to combat climate change since it represents about 40% global final consumption and 30% direct CO2 emissions in European Union. Polygeneration systems, facilitating integration renewable energies, are feasible alternative enabling efficient use natural resources with low environmental impact. This work analyzes economic viability, terms net value (NPV), benefit (CO2eq emissions) supplier company playing on aggregator for both demand supply. As owner polygeneration system, optimally designed through MILP approach, delivers various services (electricity, space heating, domestic hot water cold) several customers (50 dwellings). The analysis is performed, considering three different business models, two locations, Zaragoza (Spain) Marseille (France), demands, mixes regulations. optimal configuration obtained, consisting cogeneration module, PV, reversible heat pump, boiler thermal storage has shown be very resilient cost-effective scenarios analyzed. Results indicate that proposed scheme added (aggregator), positive NPV, (owing savings greater than 30%), significant reduction CO2eq emissions.