You should use the formula for specific heat capacity Q=CM(T-T)
In some conditional questions, if the fuel is burned for heating and all the heat of combustion of the fuel is absorbed by water, then Q= qM q is the fuel. The calorific value M is the mass of fuel consumed.
If electric heating is used and everything is absorbed by the water Q=I^2Rt
=7.5*9.8*30*80%*efficiency of the generator (usually more than 95%) ( Power)
Where is it! Such a large amount of water. I want to invest too! It depends on how difficult it is to develop. Generally, the development cost of small hydropower is 2,000-5,000 yuan/kilowatt. Also remember to connect to the electricity grid. The entire investment should still be fully recovered within 8 years. From now on, there will be a Mercedes-Benz every year. Cool. It is best to install 2 generators forso that reliability is higher. Then simply install a 1,000 kilowatt generator. eh eh. Add me! I can help you with any technical issues.