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UniSource Energy Services is an electric and natural gas utility company serving Arizona in the United States. It is a subsidiary of Fortis.
In 2003, UniSource Energy (later UNS) acquired Citizens Communications's Arizona gas and electric operations in 2003 and renamed them UniSource Energy Services.[1] In 2013, Fortis announced its acquisition of UNS.[2]
| Coal-fired generating stations | |
|---|---|
| Gas-fired generating stations | |
| Hydroelectric dams | |
| Wind farms | |
| Solar thermal plants | |
| Photovoltaic plants | |
| Nuclear plants | |
| Investor-owned utility | |
| Community and municipality owned | |
| Government agencies |
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| Cooperatives |
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