Photovoltaicself-consumption in buildings: A review [Elektronisk resurs]

• The interest in self-consumption of PV electricity from grid-connected residential systems is increasing among PV system owners and in the scientific community. Self-consumption can be defined as the share of the total PV production directly consumed by the PV system owner. With decreased subsidies for PV electricity in several countries, increased self-consumption could raise the profit of PV systems and lower the stress on the electricity distribution grid. This review paper summarizes existing research on PV selfconsumption and options to improve it. Two options for increased self-consumption are included, namely energy storage and load management, also called demand side management (DSM). Most of the papers examine PV-battery systems, sometimes combined with DSM. The results show that it is possible to increase the relative self-consumption by 13–24% points with a battery storage capacity of 0.5–1 kW h per installed kW PV power and between 2% and 15% points with DSM, both compared to the original rate of self-consumption. The total number of papers is however rather limited and further research and more comparative studies are needed to give a comprehensive view of the technologies and their potential. Behavioral responses to PV self-consumption and the impact on the distribution grid also need to be further studied. 

Ämnesord

Social Sciences  (hsv)

Other Social Sciences  (hsv)

Social Sciences Interdisciplinary  (hsv)

Samhällsvetenskap  (hsv)

Annan samhällsvetenskap  (hsv)

Tvärvetenskapliga studier  (hsv)

Indexterm och SAB-rubrik

Photovoltaics; Self-consumption; Household electricity; Energy storage; Load shifting; Demand side management