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Prices here are state averages across all utilities and rate plans, from the U.S. Energy Information Administration — not the rate on any one bill. Generation-mix figures are reported annually, not real time.

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Solar Power in Delaware

Net generation and share of the state power mix, 2025 — U.S. Energy Information Administration.

Solar generation (2025)
180 thousand MWh
Share of state power mix
3.37%
National rank (solar output)
#47
U.S. average share
6.68%

Solar share of Delaware's power mix over time

2001: 2025: 3.37%

Year by year

YearSolar (thousand MWh)Share of state mix
20251803.37%
20241663.45%
20231553.25%
2022641.2%
2021571.33%
2020541.04%
2019541.02%
2018500.8%
2017500.67%
2016510.59%
2015490.62%
2014500.64%
2013450.58%
2012230.26%
201180.13%
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001

Source: U.S. Energy Information Administration, electric power operational data (net generation by state and energy source). "Share of state mix" is this fuel's net generation as a percentage of all in-state net generation.

Solar Power in Delaware | EnergyAtlasUSA