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Regulatory Environment (Details) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2016 USD ($) | Aug. 31, 2016 USD ($) MW | Mar. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Nov. 30, 2015 | Jun. 30, 2015 | Apr. 30, 2015 USD ($) | Feb. 28, 2015 USD ($) | Jan. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Oct. 31, 2014 USD ($) | Dec. 31, 2012 USD ($) | Dec. 31, 2016 USD ($)
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Percent fuel costs can vary from the rate case approved costs before deferral is required |  |  |  |  |  |  |  |  |  |  |  |  | 2.00%
WE | Public Service Commission of Wisconsin (PSCW) | 2016 Rates | Electric rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  | $ 26.6 |  |  |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  | 0.90% |  |  |
WE | Public Service Commission of Wisconsin (PSCW) | 2016 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  | $ 0.0 |  |  |
WE | Public Service Commission of Wisconsin (PSCW) | 2016 Rates | Steam rates | Downtown Milwaukee (Valley) steam customers |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  | 0.0 |  |  |
WE | Public Service Commission of Wisconsin (PSCW) | 2016 Rates | Steam rates | Milwaukee County steam customers |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  | $ 0.0 |  |  |
WE | Public Service Commission of Wisconsin (PSCW) | 2015 Rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved return on equity (as a percent) |  |  |  |  |  |  |  |  |  | 10.20% |  |  |
Approved common equity component average (as a percent) |  |  |  |  |  |  |  |  |  | 51.00% |  |  |
WE | Public Service Commission of Wisconsin (PSCW) | 2015 Rates | Electric rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Refund related to prior fuel costs and the proceeds of a Treasury Grant |  |  |  |  |  |  |  |  |  | $ 26.6 |  |  |
Percent fuel costs can vary from the rate case approved costs before deferral is required |  |  |  |  |  |  |  |  |  | 2.00% |  |  |
SSR revenues |  |  |  |  |  |  |  |  |  | $ 90.7 |  |  |
Number of other rates impacted by the Dane County Circuit Court order |  |  |  |  | 0 |  |  |  |  |  |  |  |
WE | Public Service Commission of Wisconsin (PSCW) | 2015 Rates | Electric rates | Non-fuel costs |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  | $ 2.7 |  |  |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  | 0.10% |  |  |
WE | Public Service Commission of Wisconsin (PSCW) | 2015 Rates | Electric rates | Fuel costs |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  | $ (13.9) |  |  |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  | (0.50%) |  |  |
WE | Public Service Commission of Wisconsin (PSCW) | 2015 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  | $ (10.7) |  |  |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  | (2.40%) |  |  |
WE | Public Service Commission of Wisconsin (PSCW) | 2015 Rates | Steam rates | Downtown Milwaukee (Valley) steam customers |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  | $ 0.5 |  |  |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  | 2.00% |  |  |
WE | Public Service Commission of Wisconsin (PSCW) | 2015 Rates | Steam rates | Milwaukee County steam customers |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  | $ 1.2 |  |  |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  | 7.30% |  |  |
WE | Public Service Commission of Wisconsin (PSCW) | 2014 Rates | Electric rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | $ 28.0 |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  |  |  | 1.00% |
Approved reduction in bill credits |  |  |  |  |  |  |  |  |  |  |  | $ 45.0 |
Approved reduction in bill credits, percentage |  |  |  |  |  |  |  |  |  |  |  | (1.60%) |
WE | Public Service Commission of Wisconsin (PSCW) | 2014 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | $ 0.0 |
WE | Public Service Commission of Wisconsin (PSCW) | 2014 Rates | Steam rates | Downtown Milwaukee (Valley) steam customers |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | $ 1.3 |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  |  |  | 6.00% |
WE | Public Service Commission of Wisconsin (PSCW) | 2014 Rates | Steam rates | Milwaukee County steam customers |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | $ 1.0 |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  |  |  | 6.00% |
WE | Public Service Commission of Wisconsin (PSCW) | 2013 Rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved return on equity (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 10.40% |
WE | Public Service Commission of Wisconsin (PSCW) | 2013 Rates | Electric rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Refund related to proceeds of a Treasury Grant |  |  |  |  |  |  |  |  |  |  |  | $ 63.0 |
Refund related to proceeds of a Treasury Grant, percentage |  |  |  |  |  |  |  |  |  |  |  | 2.30% |
WE | Public Service Commission of Wisconsin (PSCW) | 2013 Rates | Electric rates | Non-fuel costs |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | $ 70.0 |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  |  |  | 2.60% |
Approved annual rate increase, excluding Treasury Grant |  |  |  |  |  |  |  |  |  |  |  | $ 133.0 |
Approved annural rate increase percentage, excluding Treasury Grant |  |  |  |  |  |  |  |  |  |  |  | 4.80% |
WE | Public Service Commission of Wisconsin (PSCW) | 2013 Rates | Electric rates | Fuel costs |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | $ 44.0 |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  |  |  | 1.60% |
WE | Public Service Commission of Wisconsin (PSCW) | 2013 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | $ (8.0) |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  |  |  | (1.90%) |
WE | Public Service Commission of Wisconsin (PSCW) | 2013 Rates | Natural gas rates | Bad debt expense |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | $ (6.4) |
WE | Public Service Commission of Wisconsin (PSCW) | 2013 Rates | Steam rates | Downtown Milwaukee (Valley) steam customers |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | $ 1.3 |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  |  |  | 6.00% |
WE | Public Service Commission of Wisconsin (PSCW) | 2013 Rates | Steam rates | Milwaukee County steam customers |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | $ 1.0 |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  |  |  | 7.00% |
WG | Public Service Commission of Wisconsin (PSCW) | 2016 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  | $ 21.4 |  |  |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  | 3.20% |  |  |
WG | Public Service Commission of Wisconsin (PSCW) | 2015 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  | $ 17.1 |  |  |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  | 2.60% |  |  |
Approved return on equity (as a percent) |  |  |  |  |  |  |  |  |  | 10.30% |  |  |
Approved common equity component average (as a percent) |  |  |  |  |  |  |  |  |  | 49.50% |  |  |
WG | Public Service Commission of Wisconsin (PSCW) | 2014 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | $ 0.0 |
WG | Public Service Commission of Wisconsin (PSCW) | 2013 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | $ (34.0) |
Approved annual rate increase (decrease), percentage |  |  |  |  |  |  |  |  |  |  |  | (5.50%) |
Approved return on equity (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 10.50% |
WG | Public Service Commission of Wisconsin (PSCW) | 2013 Rates | Natural gas rates | Bad debt expense |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  |  |  | $ (43.8) |
WPS | Public Service Commission of Wisconsin (PSCW) | 2016 Rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved return on equity (as a percent) |  |  |  | 10.00% |  |  |  |  |  |  |  |  |
Approved common equity component average (as a percent) |  |  |  | 51.00% |  |  |  |  |  |  |  |  |
WPS | Public Service Commission of Wisconsin (PSCW) | 2016 Rates | Electric rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  | $ (7.9) |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease), percentage |  |  |  | (0.80%) |  |  |  |  |  |  |  |  |
Percent fuel costs can vary from the rate case approved costs before deferral is required |  |  |  | 2.00% |  |  |  |  |  |  |  |  |
Authorized revenue requirement for ReACT |  |  | $ 275.0 | $ 275.0 |  |  |  |  |  |  |  |  |
WPS | Public Service Commission of Wisconsin (PSCW) | 2016 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  | $ (6.2) |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease), percentage |  |  |  | (2.10%) |  |  |  |  |  |  |  |  |
WPS | Public Service Commission of Wisconsin (PSCW) | 2015 Rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved return on equity (as a percent) |  |  |  |  |  |  |  |  |  | 10.20% |  |  |
Approved common equity component average (as a percent) |  |  |  |  |  |  |  |  |  | 50.28% |  |  |
WPS | Public Service Commission of Wisconsin (PSCW) | 2015 Rates | Electric rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  | $ 24.6 |  |  |
Percent fuel costs can vary from the rate case approved costs before deferral is required |  |  |  |  |  |  |  |  |  | 2.00% |  |  |
Increase in cost of fuel for electric generation |  |  |  |  |  |  |  |  |  | $ 42.0 |  |  |
Year-over-year positive (negative) change in decoupling refunded to or collected from customers |  |  |  |  |  |  |  |  |  | 9.0 |  |  |
Customer recoveries (refunds) related to decoupling |  |  |  |  |  |  |  |  |  | (4.0) |  |  |
WPS | Public Service Commission of Wisconsin (PSCW) | 2015 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  | (15.4) |  |  |
Year-over-year positive (negative) change in decoupling refunded to or collected from customers |  |  |  |  |  |  |  |  |  | (16.0) |  |  |
Customer recoveries (refunds) related to decoupling |  |  |  |  |  |  |  |  |  | (8.0) |  |  |
WPS | Public Service Commission of Wisconsin (PSCW) | 2014 Rates | Electric rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Customer recoveries (refunds) related to decoupling |  |  |  |  |  |  |  |  |  | (13.0) |  |  |
WPS | Public Service Commission of Wisconsin (PSCW) | 2014 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Customer recoveries (refunds) related to decoupling |  |  |  |  |  |  |  |  |  | $ 8.0 |  |  |
WPS | Michigan Public Service Commission (MPSC) | 2015 Rates | Electric rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  | $ 4.0 |  |  |  |  |  |
Approved return on equity (as a percent) |  |  |  |  |  |  | 10.20% |  |  |  |  |  |
Approved common equity component average (as a percent) |  |  |  |  |  |  | 50.48% |  |  |  |  |  |
Period of rate implementation |  |  |  |  |  |  | 3 years |  |  |  |  |  |
PGL and NSG | Illinois Commerce Commission (ICC) | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Period of base rate freeze |  |  |  |  |  | 2 years |  |  |  |  |  |  |
PGL | Illinois Commerce Commission (ICC) | 2015 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  | $ 74.8 |  |  |  |
Approved return on equity (as a percent) |  |  |  |  |  |  |  |  | 9.05% |  |  |  |
Approved common equity component average (as a percent) |  |  |  |  |  |  |  |  | 50.33% |  |  |  |
Amended approved annual rate increase (decrease) |  |  |  |  |  |  |  | $ 71.1 |  |  |  |  |
NSG | Illinois Commerce Commission (ICC) | 2015 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  | $ 3.7 |  |  |  |
Approved return on equity (as a percent) |  |  |  |  |  |  |  |  | 9.05% |  |  |  |
Approved common equity component average (as a percent) |  |  |  |  |  |  |  |  | 50.48% |  |  |  |
Amended approved annual rate increase (decrease) |  |  |  |  |  |  |  | $ 3.5 |  |  |  |  |
MERC | Minnesota Public Utilities Commission (MPUC) | 2016 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) | $ 6.8 |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease), percentage | 3.00% |  |  |  |  |  |  |  |  |  |  |  |
Approved return on equity (as a percent) | 9.11% |  |  |  |  |  |  |  |  |  |  |  |
Approved common equity component average (as a percent) | 50.32% |  |  |  |  |  |  |  |  |  |  |  |
Number of years decoupling mechanism approved for | 3 years |  |  |  |  |  |  |  |  |  |  |  |
Interim rates to be refunded to customers |  |  |  |  |  |  |  |  |  |  |  |  | $ 3.0
MERC | Minnesota Public Utilities Commission (MPUC) | 2015 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  |  |  |  |  |  |  |  | $ 7.6 |  |
Approved return on equity (as a percent) |  |  |  |  |  |  |  |  |  |  | 9.35% |  |
Approved common equity component average (as a percent) |  |  |  |  |  |  |  |  |  |  | 50.31% |  |
Annual cap for decoupling mechanism (as a percent of rate case approved distribution revenues) |  |  |  |  |  |  |  |  |  |  | 10.00% |  |
Interim rates refunded to customers |  |  |  |  |  |  |  |  |  |  | $ 4.7 |  |
MGU | Michigan Public Service Commission (MPSC) | 2016 Rates | Natural gas rates |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease) |  |  |  | $ 3.4 |  |  |  |  |  |  |  |  |
Approved annual rate increase (decrease), percentage |  |  |  | 2.40% |  |  |  |  |  |  |  |  |
Approved return on equity (as a percent) |  |  |  | 9.90% |  |  |  |  |  |  |  |  |
Approved common equity component average (as a percent) |  |  |  | 52.00% |  |  |  |  |  |  |  |  |
UMERC |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory environment |  |  |  |  |  |  |  |  |  |  |  |  |
Term of Electric Power Purchase Agreement |  | 20 years |  |  |  |  |  |  |  |  |  |  |
Capacity of Natural Gas Generating Facility | MW |  | 180 |  |  |  |  |  |  |  |  |  |  |
Cost to construct power plant |  | $ 265.0 |  |  |  |  |  |  |  |  |  |  |
Cost to construct power plant with AFUDC |  | $ 275.0 |  |  |  |  |  |  |  |  |  |  |
Estimated portion of power plant cost recovery from Tilden Mines |  | 50.00% |  |  |  |  |  |  |  |  |  |  |
Estimated portion of power plant cost recovery from utility customers |  | 50.00% |  |  |  |  |  |  |  |  |  |  |

X
- Definition Fuel costs incurred that are directly related to goods produced and sold and services rendered during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_FuelCosts
Namespace Prefix: | us-gaap_
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- Definition Percentage of public utility's approved rate increase (decrease) by regulatory agency. + References No definition available. + Details
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- Definition Percentage of public utility's approved return on equity. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The annual cap (as a percent) for a decoupling mechanism. + References No definition available. + Details
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- Definition The authorized revenue requirement for ReACT that was used to calculate the ReACT deferral. + References No definition available. + Details
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- Definition Capacity (in MW) related to a natural gas generating facility + References No definition available. + Details
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- Definition Represents the amount to be recovered from (refunded to) customers related to decoupling collections from a prior year. + References No definition available. + Details
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- Definition Estimated portion of power plant cost recovery from Tilden Mines + References No definition available. + Details
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- Definition The rate base freeze period imposed by the Illinois Commerce Commission as a result of the acquisition of Integrys Energy Group, Inc. + References No definition available. + Details
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- Definition The amount of interim rates refunded to customers. + References No definition available. + Details
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- Definition Number of rates, excluding the demand charge for customer-owned generation, impacted by the November 2015 Dane County Circuit Court order. + References No definition available. + Details
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- Definition Represents the number of years a decoupling mechanism was approved for. + References No definition available. + Details
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- Definition Represents the threshold percentage that actual fuel and purchased power costs can vary from costs charged to customers before deferral is required. + References No definition available. + Details
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- Definition Amount of a public utility's approved reduction in bill credits. + References No definition available. + Details
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- Definition Percentage of a public utility's approved reduction in bill credits. + References No definition available. + Details
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- Definition Amount of public utility's rate increase (decrease) approved by regulatory agency, excluding the impact of a Section 1603 Renewable Energy Treasury Grant. + References No definition available. + Details
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- Definition Percentage of public utility's approved rate increase (decrease) by regulatory agency, excluding the impact of a Section 1603 Renewable Energy Treasury Grant. + References No definition available. + Details
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- Definition Represents the period over which rates will be implemented. + References No definition available. + Details
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- Definition The amount refunded to customers for prior fuel costs and the proceeds of a Section 1603 Renewable Energy Treasury Grant. + References No definition available. + Details
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- Definition The system support resource revenues received from Midcontinent Independent System Operator, Inc. + References No definition available. + Details
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