I do believe that PushPull's figures are more or less correct but I think there is a fundamental mistake in his economic calculations .. he is using average cost of gas compared to average cost of hydrogen. The gas or electricity from the power grid is there and you buy it as and when you use it. Fine to compare that with buying cylinders of hydrogen but not to hydrogen produced at home with renewable energy.
H2 produced at home, in a small scale generation/ pressurization/ storage unit, is even less efficient and less affordable than doing it on a large scale. Like all too many advocates for the "hydrogen economy", you are concentrating only on the cost for
generating H2, and ignoring the much higher cumulative costs which come further along in the supply chain. You're also ignoring the cost (and needed space) for the additional solar panels, inverters, etc. which would be necessary to power the H2 generation and compression equipment, if done at home. Solar energy is free... but buying, installing, and maintaining a solar power installation is not.
Simple Fuel has an all-in-one H2 generating/ pressurization/ storage unit which has a footprint about the size of a subcompact car, which could in theory be used to fuel your FCEV at home... assuming you're willing to convert your two-car garage into a one-car garage, or that you build an addition to the garage to store that unit. The cost? You can get one for
as little as $250,000. Cheap at the cost, right?

Of course, do-it-yourselfers might want to look into the cost of making the system themselves. Here's a hint: High pressure pumps are not cheap, and they're not going to be.
There is no clever way around the Laws of Thermodynamics. If there was, then we'd all be using perpetual motion to power our cars, and there would be no need for anything as complicated, impractical, or expensive as using compressed hydrogen to power FCEVs.