Comment sound idea? (Score 1) 299
I think the idea sound but it might be too expensive and not cost effective.
Let's say that saves $50 a month in electricity bill (that is very optimistic). $13K / $50 = 260 months = 21 years. Let's say tax payers chips in to offset 50% of the cost. It is still 10 years to break even, not to mention installation cost and the battery may not last 10 years. If it is priced at $2K, that is a different story.