What’s the largest utility providing this around the country?
Technically, the largest is EverSource in the far Northeast, but they do not have the largest program. EverSource has restricted its program to municipal buildings, though they may be reconsidering now.
The largest program is Midwest Energy in Kansas. They’ve invested $8 million in more than 1,400 transactions over 8 years. Over that time, the cost recovery rate has been 99.9%. That gives you a sense of the structural stability of customers’ investments made through through tariff-based on-bill repayment