Do you have a separate heater for each room? You have to figure out how to heat each room independently.

This is doable, depending on how your house is heated, but there's more to it than just monitoring. There's retrofitting involved. It might be as simple as vents that can be opened and closed by a computer, or it might be as complicated as installing additional heating units.


There are a couple of points here. There are a huge number of devices, especially electronics, that waste energy converting AC to DC. Even devices that don't have an external transformer have power supplies that do that conversion. That said, unless you can get all of your devices to expect the same input voltage, you're still going to lose energy to conversion.


Photovoltaic cells generate DC current, so that makes sense for them. Turbines generate AC, though. That said, I don't know the voltage, but I doubt it's 110, much less 220.

But you can certainly store your excess electricity in an array of lead-acid batteries. "Many" people do so; there are existing solutions. But the power grid is an excellent battery, it already exists, so you don't have to deal with massive amounts of batteries in your basement (though lead-acid batteries are very recyclable), and regardless of how you store your energy, you're going to be losing some of it to conversion.

I'm sure that power companies are lukewarm about it, though. Effectively, they're buying power from you at consumer rates. One would assume that when they produce it themselves that it costs them less than that. On the other hand, if you store it yourself, you're still reducing your consumption by that same amount.