2018 Top 10 Winners

Our Top 10 rankings are decided from utilities that participate in SEPA’s Annual Utility Market Survey. The 2018 survey covered solar and energy storage, ranking utilities for adding the most megawatts or watts per customer in 2017.

Utility Solar Rankings Annual Megawatts (MW)
1 Pacific Gas & Electric (CA)
831.3
2 Southern California Edison (CA) 547.1
3 Duke Energy Progress (NC) 355.4
4 Austin Energy (TX) 285.9
5 Xcel Energy - Minnesota (MN) 283.3
6 SCE&G (SC) 265.3
7 NV Energy (NV) 248.3
8 Dominion Energy Virginia (VA) 246.5
9 National Grid (MA) 226.9
10 Los Angeles Department of Water and Power (CA) 215.8
Utility Solar Rankings Annual Watts-Per-Customer (W/C)
1 Madison Electric Works (ME)
1819.6
2 Anza Electric Cooperative (CA) 1455.5
3 Clarksville Light & Water (AR) 1202.1
4 Pickwick Electric Cooperative (TN) 1195.9
5 Moreno Valley Utility (CA) 1188.4
6 City of Bowling Green Municipal Utilities (OH) 938.3
7 Navajo Tribal Utility Authority (AZ) 912.5
8 Village Electric Utility - Brewster (OH) 901.4
9 Nixa Electric Utility (MO) 831.1
10 Asked Not To Be Honored (TX) 719.1
Utility Energy Storage Rankings Annual Megawatts (MW)
1 Southern California Edison (CA)
56.2
2 San Diego Gas & Electric (CA) 45.3
3 Tucson Electric Power (AZ) 21.0
4 Pacific Gas & Electric (CA) 16.4
5 Kauai Island Utility Cooperative (HI 13.7
6 Massachusetts Electric Company (MA) 7.0
7 Arizona Public Service (AZ) 4.2
8 Green Mountain Power (VT) 2.8
9 Maui Electric (HI) 2.6
10 Hawaiian Electric (HI) 2.2
Utility Energy Storage Rankings Annual Watts-Per-Customer (W/C)
1 Kauai Island Utility Cooperative (HI)
415.3
2 Tucson Electric Power (AZ) 50.0
3 Maui Electric (HI) 36.5
4 San Diego Gas & Electric (CA) 31.7
5 Glendale Water & Power (CA) 22.9
6 American Samoa Power Authority (AS) 20.4
7 Hawaii Electric Light Company (HI) 16.4
8 Southern California Edison (CA) 11.1
9 Green Mountain Power (VT) 10.6
10 City Utilities of Springfield, MO (MO) 8.8