With so many of our towns committing to transition to 100% renewable energy, we thought it was time to look at solar trends. Thanks to Steve Clark of our Ready for 100 team in Delaware County, who turned GATS (Generation Attribute Tracking System) data from PJM and produced these charts.
This chart compares cumulative installations over the last 9 years. It looks like Bucks County is leading, and Delaware County is trailing.
This second chart shows cumulative generation capacity over the same 9 years. We still have Bucks County leading and Delaware County trailing.
If you’re more of a numbers person instead of a charts person, Steve also offers this tabulation about average system size and annual installation count.
|2016 – 2020||Bucks||Chester||Delaware||Montgomery||Philadelphia|
|average MW installed per year||4.4||2.2||2||3.8||2.8|
|average number of installations per year||409||202||266||370||318|
When compared with our neighboring state of New Jersey, however, our efforts appear dim. The chart below is sorted by total generating capacity, in megawatts (MW).
|State||County||Number of installations||MW||population||square miles||MW per square mile||MW per 10,000 people||average KW per installation|
Within PA, Delaware and Philadelphia counties have the smallest average system size of 8.46 kW and 12.17 kW respectively, which seem to be in the range for residential systems. You’ll see that Philly has packed the most solar capacity per square mile, and Chester the most sprawled out, at 0.154 MW per square mile and 0.039 MW per square mile.
Here’s to a year spent changing these numbers. Please contact us with your interest and questions about transitioning to renewable energy — whether for your home or business.