Public Utilities, Annual Spending Limit

No definition available.

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- Definition

Public Utilities, Approved electric demand side management budget

+ References

No definition available.

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- Definition

Public Utilities, Approved gas demand side management budget

+ References

No definition available.

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- Definition

The cumulative amount of the customers' share of Renewable Energy Credit trading margins netted against the public utility's renewable energy standard adjustment (RESA) regulatory asset balance.

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No definition available.

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- Definition

The amount of the customers' share of Renewable Energy Credit trading margins netted against the public utility's renewable energy standard adjustment (RESA) regulatory asset balance.

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No definition available.

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- Definition

The incentive award a public utility can earn upon achieving its annual savings goal.

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No definition available.

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- Definition

The public utility's margin threshold which determines the percentage of margin sharing related to hybrid Renewable Energy Credit (REC) trades. Margins less than $20 million on hybrid REC trades of are shared 80 percent to the customers and 20 percent to the public utility. Margins in excess of the $20 million are to be shared 90 percent to the customers and 10 percent to the public utility.

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No definition available.

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- Definition

The maximum annual incentive in the public utility's electric Demand Side Management (DSM) energy efficiency program.

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No definition available.

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Period Type:	duration

- Definition

The public utility's maximum savings goal in the public utility's electric Demand Side Management (DSM) energy efficiency program.

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No definition available.

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- Definition

Percentage of net economic benefits on which an incentive is earned in the public utility's electric Demand Side Management (DSM) energy efficiency program.

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No definition available.

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- Definition

Public Utilities, Percentage of Margin in Excess of Renewable Energy Credit (REC) Margin Limit Approved

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No definition available.

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- Definition

Public Utilities, Percentage of Margin on Renewable Energy Credit (REC) Margin Limit Approved

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No definition available.

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- Definition

The return on equity used as a threshold in the public utility's annual earnings test for 2012-2014, as approved by a regulatory agency. Earnings exceeding this threshold are shared between customers and shareholders.

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No definition available.

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- Definition

The public utility's ultimate percentage of margin associated with stand-alone Renewable Energy Credit (REC) transactions which will be shared by 2014 as determined by regulatory agency.

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No definition available.

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No definition available.

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Rate Matters (Details) $ in Millions	1 Months Ended	12 Months Ended
Rate Matters (Details) $ in Millions	Feb. 28, 2017 USD ($)	Dec. 31, 2016 USD ($) GWh	Dec. 31, 2015 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011
CPUC Proceeding - Annual Electric Earnings Test 2015 through 2017
Rate Matters [Abstract]
Public Utilities, Return on Equity Threshold for Earnings Sharing		9.83%
CPUC Proceeding - Demand Side Management Cost Adjustment
Rate Matters [Abstract]
Public Utilities, Incentive Award Upon Achieving Savings Goal		$ 5.0
Public Utilities, Percentage of Net Economic Benefits on Which Incentive is Earned		5.00%
Public Utilities, Maximum Annual Incentive		$ 30.0
Demand Side Management Cost Adjustment, 2015
Rate Matters [Abstract]
Public Utilities, Maximum Savings Goal (in GWh) \| GWh		400
Demand Side Management Cost Adjustment, 2016
Rate Matters [Abstract]
Public Utilities, Maximum Savings Goal (in GWh) \| GWh		400
Demand Side Management Cost Adjustment, 2017 through 2020
Rate Matters [Abstract]
Public Utilities, Maximum Savings Goal (in GWh) \| GWh		400
Public Utilities, Annual Spending Limit		$ 84.3
CPUC Proceeding - Renewable Energy Credit Sharing
Rate Matters [Abstract]
Public Utilities, Customers Share of Margins Credited Against RESA Regulatory Asset Balance		5.8	$ 5.5
Public Utilities, Cumulative Credit Against RESA Regulatory Asset Balance		$ 116.3	$ 110.6
Colorado Public Utilities Commission (CPUC) \| CPUC Proceeding - Renewable Energy Credit Sharing
Rate Matters [Abstract]
Public Utilities, Margin Threshold Determining Percentage of Margin Sharing				$ 20.0
Colorado Public Utilities Commission (CPUC) \| CPUC Proceeding - Renewable Energy Credit Sharing \| Shareholders
Rate Matters [Abstract]
Public Utilities, Ultimate Margin Sharing Associated With Stand Alone REC Transactions					10.00%
Public Utilities, Percentage of Margin on REC Margin Limit Approved				20.00%
Public Utilities, Percentage of Margin in Excess of REC Margin Limit Approved				10.00%
Colorado Public Utilities Commission (CPUC) \| CPUC Proceeding - Renewable Energy Credit Sharing \| Customers
Rate Matters [Abstract]
Public Utilities, Ultimate Margin Sharing Associated With Stand Alone REC Transactions					90.00%
Public Utilities, Percentage of Margin on REC Margin Limit Approved				80.00%
Public Utilities, Percentage of Margin in Excess of REC Margin Limit Approved				90.00%
Subsequent Event \| Colorado Public Utilities Commission (CPUC) \| Demand Side Management Cost Adjustment, 2017 Budget
Rate Matters [Abstract]
Public Utilities, Approved Electric Demand Side Management Budget	$ 80.4
Public Utilities, Approved Gas Demand Side Management Budget	13.1
Subsequent Event \| Colorado Public Utilities Commission (CPUC) \| Demand Side Management Cost Adjustment, 2018 Budget
Rate Matters [Abstract]
Public Utilities, Approved Electric Demand Side Management Budget	77.7
Public Utilities, Approved Gas Demand Side Management Budget	$ 12.8