I believe that Gridspy is helping at least partially with 2. Make solar energy economical. It helps like this: Gridspy can measure the power usage of a buildi

I believe that Gridspy is helping at least partially with 2. Make solar energy economical. It helps like this: Gridspy can measure the power usage of a building, helping you to specify a system that will satisfy that particular building's energy footprint and timing. Choices such as size of the battery bank, size of the battery array and capacity of the inverter bank depend on how power is used. The Array itself needs to generate enough power over the course of a week or so to power the building for that week. Knowing exactly how much power is used helps you to specify the correct size so you don't spend too much on panels. The Batteries need to be large enough to handle any difference between the power used when the sun is poor and the solar array's yield at that time. Knowing exactly when during the day power is used helps to specify how many batteries to install. Finally, the peak power usage of the building determines how large the bank of inverters should be. Inverters convert battery power to usable mains - if there are not enough inverters, you will need to fall back on other power sources (generators / the grid) when you need lots of power for HVAC or lighting. Gridspy can help you choose the right amount to spend on each of these different subsystems since it monitors your power usage at high resolution. Once the system is installed, Gridspy can monitor the solar yeild, the battery levels and the current demand to show you how well your solar installation is performing. This helps to prove that the investment in solar power was financially sound.