Modelling of PV Prosumers using a stationary battery, heat pump, thermal energy storage and electric vehicle for optimizing self-consumption ratio and total cost of energy

摘要: PV prosumers may be one of the most important market segments in the energy transition. By using one’s own energy on the spot of production, PV prosumers have a significant possibility of supplying their own demands with cheap and pollution-free energy. This becomes most profitable by maximising self-consumption while avoiding large amounts of excess electricity being fed into the grid. Storage technologies, heat pumps and battery electric vehicles help to contribute to the highest possible self-consumption ratio for residential PV prosumer systems, which can reach grid-parity within the next decade in most regions of the world. The study provides a detailed overview of 8 regions on all continents and traces the benefits of PV prosumer systems for the world structured in 145 regions. A most noticeable threshold for the economical maximum battery capacity per installed PV capacity has been found, even independently of the inclusion of battery electric vehicles. Very high self-consumption ratios, demand cover ratios and heat cover ratios can be observed.