Signed up for a solar array on my roof today. There's no storage at my end, the juice goes straight out into the national grid, leaving me with a certain amount of credit, which is then applied to my actual usage.
It's estimated that there'll be a minimum of 84% reduction in power costs to me, the difference being applied over 50 months to pay off the almost $10,000 cost of the array.
The benefits of living alone, neighbouring properties with more than one person in their households are estimated to save 64% at one place & 75% at another.
Then, after the system is paid for, my annual power bills will be considerably lower than at present.