分布式能源已被证明是加强电力系统韧性和提高家庭用户可靠性的有效方案.我们提出了一种评估带有电池储能的光伏系统可靠性价值的方法.该方法通过考虑在家庭停电情况下光伏与储能系统的可靠性价值?利润和成本,推导出最优规划策略.这一策略可以为家庭用户提供光伏与储能系统的投资策略.通过对2006年至2015年,美国8个地区600户家庭的实际算例研究表明,计及可靠性价值的投资策略可以加强用户投资该系统的意愿.停电概率越大,家庭用户获得的收益就越大.实际算例结果表明,该投资策略在实际运行中具有良好的经济性,能够降低家庭用户的停电经济风险.“,”Distributed energy resources have been proven to be an effective and promising solution to enhance power system resilience and improve household-level reliability. In this paper, we propose a method to evaluate the reliability value of a photovoltaic (PV) energy system with a battery storage system (BSS) by considering the probability of grid outages causing household blackouts. Considering this reliability value, which is the economic profit and capital cost of PV+BSS, a simple formula is derived to calculate the optimal planning strategy. This strategy can provide household-level customers with a simple and straightforward expression for invested PV+BSS capacity. Case studies on 600 households located in eight zones of the US for the period of 2006 to 2015 demonstrate that adding the reliability value to economic profit allows households to invest in a larger PV+BSS and avoid loss of load caused by blackouts. Owing to the differences in blackout hours, households from the 8 zones express distinct willingness to install PV+BSS. The greater the probability of blackout, the greater revenue that household can get from the PV+BSS. The simulation example shows that the planning strategy obtained by proposed model has good economy in the actual operation and able to reduce the economic risk of power failure of the household users. This model can provide household with an easy and straightforward investment strategy of PV+BSS capacity.