 MINNEAPOLIS--BUSINESS WIRE--Xcel Energy today announced that it is the largest clean energy provider in the country when it comes to wind, solar and battery storage, according to the American Clean Power Association ACP. In its recently published annual report, the ACP ranks investor-owned utilities, based on the amount of clean power on their systems at the end of 2020, and Xcel Energy came out on top. The nation has seen tremendous growth on the wind and solar front, and were proud to b 