14. What happens if we don’t use all the electricity the solar PV system generates?
At times of peak generation, if you do not have sufficient demand on-site, the excess power is exported to the national grid. Equally, when the solar PV system is generating less than your total demand on site, the shortfall is made up through importing electricity from the national grid as normal. Depending on the size of your roof and your electricity demand, you should reasonably expect to consume most or all of the electricity generated from the solar PV system.