Hydrogen for Homes

They could use it to sanitize food!

How much energy savings? $1 per year? Really, that quote has more noise than signal.

Everything you need is in the quote. The annual power savings are

Say your system cost USD20,000 (nationwide, 18K - 26K) for a 7.5kw array.

You get USD5000 as a federal tax credit the next year, so your cost is USD15,000.

The array will generate around 25-30 kwh/day in Michigan (more in summer, less in winter). Round up to $0.20/kwh, that's $6/day; which over a year sums to USD2,190 annually. So your array will pay for itself in 7 years or so (assuming your electricity costs stay at 0.20/kwh, which is highly unlikely). After it's paid off, that's $2k+ annually in savings. Caveat: if you don't use all of it, the utility and state determine your feed-in tariff, which might be significantly less than the consumer cost per Kwh, in which case, it may take longer to pay off the system if you don't use the full capacity of the array.

Plus, you're not consuming the limited supply of fossil fuels nor contributing to the excess carbon in the atmosphere.

It's an investment with no downside and a better than 10% return on investment.

Just ftr, because of the interest you are paying, or the interest you are losing, depending on current interest rates, I'm guessing it takes

This may effect calculations below, but I didn't look.

If you finance the system the finance costs will extend the payback interval, that's true.

Depends also on how you buy the system. Seems to be some outfits that will reap more benefits than you by installing and leasing the system to you. get calls often that promise me savings on my electric bill. Yeah, sure.

I don't favor those types of systems (e.g. Vivint) where you pay them a fixed amount per KWH (less than the utility) produced by the panels; while they maintain ownership and maintenance responsibilities. Most of those are long-term agreements which have an adverse effect on the resalability of the home - effectively a lien.