Take a look at the US Dept. of Energy’s EIA new monthly update.
Based on preliminary 2012 data, the number of residential net metering customers has grown to approximately 297,000 nationwide. Although the number of residential net metering customers is a very small percentage of total residential customers (127 million or less than 1%), the 2012 figure represents almost a 60-fold increase relative to the 5,000 or so net metered customers reported in 2003.
Here’s a graphic representation of this growth –
Wow. I was one of the ones who began selling electricity to Mon Power through my meter in 2010.