Tou.solutions is an online energy optimization toolkit (EOT) that uses Green Button Data to help you decide what your best pricing plan option would be. The tool also uses Green Button Data, as well as a forecast of your future energy needs, to calculate your energy bill outlook and recommends the most optimum solar system size that would offset your energy costs. Additionally, the system has the ability to forecast for the addition of a solar system, battery storage, electric vehicles, as well as any custom device (i.e. adding a Pool Pump, increased air conditioning usage).