Does anyone else see a problem with their math?
The headline indicates that six Leaf cars can power the building. Later they say the scheme reduced peak power load by 2%. Doesn't that indicate it would take 6*50, or 300 Leaf cars to power the whole building.
This sort of fuzzy math makes me doubt most of the solar and wind claims.
Another post is heavily in favor of net-metering, where the utility pays you the same rate per KWH as they sell it to you. That's bad economics. That means you can buy power at peak periods and have them buy from you at off-peak. You're asking them to be your energy storage source at no cost. If everyone did that, the utility would go broke trying to keep generator plants available (at zero cost) for when the sun doesn't shine or there's a hot day with a large air conditioning load.