The BigPower solar power package offers all the same comforts as a cottage connected to power grid. Solar energy is stored in batteries and from there it is used via an inverter as 230V, just like at home. The TV, computer, vacuum cleaner, toaster, coffee maker, refrigerator, etc. operate with normal 230V power. So everything except electric heating or an electric stove runs on 230V electricity. This package replaces the electrical connection with the exception that there will never be an electric bill! In winter a generator can charge batteries for weekend electricity in a few hours.