Re-mapping Solar Grid Parity (with incentives)
The only complaint was, “what about the 30% federal tax credit?” We think the former argument – without subsidies – is stronger, but for those who really wanted to see the solar future based on the existing tax incentive (and assuming it is extended, as is, after 2016), this map’s for you:
We used the following assumptions in the construction of this animated map:
- The cost of solar in 2011 is $4.00 per Watt installed.
- Grid electricity price is the average residential retail rate reported by PVWatts for the core city of the metropolitan area.
- The cost of solar decreases by 7% per year.
- The grid electricity price increases by 2% per year.
- The federal 30% tax credit is used by solar projects and is extended through 2024.
Google Maps/Fusion Table mash-up developed by Eric James