Solar photovoltaic energy is only generated when the sun is shining, so the highest production typically occurs during the middle of the day. However, our homes tend to have the highest energy consumption in the evening. To make the most of this excess solar energy and reduce both costs and our carbon footprint, it’s important to use batteries. These allow us to store unused energy generated during the day so that it can be used when our energy demand is higher than the PV energy generation. In the attached graph, you can see how the excess solar energy is stored in batteries and used later, helping to meet energy demand efficiently. Use the tool to see how increasing battery capacity in your home can further reduce your environmental impact.