My family is building a new house and we have 5 adults and 2 children in the house. We got opinion of a solar company whether it is a good idea to install solar system as the sell back rates are crap. We were explained that it in our best interest to get a 5KW system based on our current situation as we were consuming 420KW electricity and 720KW gas to run our house last month. Our house that we will be building is fairly north facing. He explained that we would generate 25KW on average per day and that we should run a cable from each of the heavy electricity using devices (hot water cylinder, induction stove, heat pump, deep freezer, etc) to the switch board seperately using microinverter cables and use elios system to control the excess. He mentioned to get an import export thing that sells the excess back which I cant remember the name off. We were planning to use infinity water heater for hot water and gas central heating aswell as gas stove. Will it be more cost effective to get induction stove, electric heat pump and induction stove compared to gas alternatives? He also explained that if we wanted battery to wait for enphase AC battery. What are your thoughts and suggestions as to what we should do. Is it worth spending more on the electric alternatives or is gas more efficient?