How should net metering affect your electric bill?
I just moved into a new construction house in Colorado with a substantial (23kW) solar installation. It’s been interesting to see how much, in the words of the author, ‘feeding bread to pigs’ I have ended up doing.The solar installation (which is probably larger than optimal) is dictated by the policy for the house to be “net zero”, which in turn is dictated by a policy based on the size of the house. (In practice, solar is the cheapest way for the builder to get all the way to ‘net zero’ after the usual decent insulation, windows, etc.)So that’s how I got solar, but now I want to turn it on. Well, this is not in the interest of the utility at all (they lose money), but they still by policy get to ‘approve it’. This required a many-month (and many phone call) process of reviews, approvals, etc. which concluded in the utility activating (installing a meter for) the installation. In total it was maybe 9 months from when the solar was all wired up and sitting in the sun until it was producing any electricity for the world!Now the utility gives me a choice of two billing options. At the end of each month, excess energy I’ve generated can either be put in a kWh bank and rolled over as credit, or it can be paid out. However, the payout is hilariously low (like $0.01/kWh) so of course everyone chooses the bank.But now incentives are all screwed up! Since I easily generate more electricity that I will ever use (see above for why policies drove us to an installation larger that necessary) my household has no incentive to conserve at all. E.g. I am heating my garage with an electric heater because it costs me zero.So the net effect of all of these policies intended to promote conservation are:1) To drive up the price of housing in an area where that is already one of the big challenges the community is fighting2) To completely disincentivize any actual conservation3) To have new solar installations laying fallow for 6-9 monthsI don’t know what the solution is, but the problems are pretty easy to see.