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Colorado鈥檚 largest utility has announced its adding more wind power, further helping it meet a mandated renewable energy standard. Xcel Energy says it鈥檚鈥�

The city of Boulder and utility provider Xcel Energy are embroiled in a controversy over a new franchise agreement. But the company offered a new proposal鈥�

Starting Wednesday June 1, Xcel Energy will resume a two-tiered seasonal rate that it first introduced to Colorado customers last summer.From June through鈥�

The state's largest utility Xcel Energy says it鈥檚 on par to meet Colorado鈥檚 renewable energy mandate by 2017, three years earlier than state law鈥�