The characteristics of photovoltaic power generation and residential electricity consumption in a rural residential building installedwith photovoltaics in Beijing were studied

and the adaptation of photovoltaic power storage capacity with the objective of improving the contribution rate and self-consumption rate of photovoltaic power was analyzed. The results indicate that the electricity consumption characteristics of rural residential buildings are not only seasonal but also relateds to working days and non-working days

which means that the electricity consumption characteristics are closely related to residents’production and living behavior patterns. When the air source heat pump（ASHP） is used for heating

the proportion of heating electricity consumption is relatively high

reaching 43.2% of the total electricity consumption. The lack of coordination between photovoltaic power generation and residential electricity consumption in terms of time results in low contribution rate and self-consumption rate of photovoltaic power. The annual contribution rate of photovoltaic power

when the centralized heating and ASHP heating are used

are only 52.8% and 36.6%

respectively

and the self-consumption rate is only 33.2% and 38.5%

respectively. When electricity storage is used

the self-consumption rate of photovoltaic power has been increased to about 62.4% and 64.9% respectively

and the photovoltaic contribution rate has been increased to about 99.5% and 61.7% respectively. When the photovoltaic area is fixed

increasing the electricity storage capacity of the photovoltaic system is no longer a reasonable and economical solution when the electricity storage is beyond a specific value.