5kw is the normal running consumption. Startup currents are higher than normal operation and so you need to have a beefier generator. But yes, 40kVA is a lot, b

5kw is the normal running consumption. Startup currents are higher than normal operation and so you need to have a beefier generator. But yes, 40kVA is a lot, big houses should do fine even with high transient loads with a 22kVA generator. But let’s not forget this is HN, maybe OPs house is humongous