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REVENUES (Tables) | 9 Months Ended
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Sep. 30, 2021
Revenue from Contract with Customer [Abstract] |
Operating Revenues Disaggregated by Revenue Source | The following tables present operating revenues disaggregated by revenue source:
| For the Three Months Ended September 30, 2021
Eversource (Millions of Dollars) | Electric Distribution |  | Natural Gas Distribution |  | Electric Transmission |  | Water Distribution |  | Other |  | Eliminations |  | Total
Revenues from Contracts with Customers |  |  |  |  |  |  |  |  |  |  |  |  |
Retail Tariff Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Residential | $ | 1,146.8 |  |  | $ | 81.7 |  |  | $ | — |  |  | $ | 39.1 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,267.6 |
Commercial | 748.8 |  |  | 59.0 |  |  | — |  |  | 17.2 |  |  | — |  |  | (1.4) |  |  | 823.6 |
Industrial | 96.2 |  |  | 28.6 |  |  | — |  |  | 1.1 |  |  | — |  |  | (4.8) |  |  | 121.1 |
Total Retail Tariff Sales Revenues | 1,991.8 |  |  | 169.3 |  |  | — |  |  | 57.4 |  |  | — |  |  | (6.2) |  |  | 2,212.3 |
Wholesale Transmission Revenues | — |  |  | — |  |  | 527.2 |  |  | — |  |  | 23.0 |  |  | (408.5) |  |  | 141.7 |
Wholesale Market Sales Revenues | 133.8 |  |  | 12.2 |  |  | — |  |  | 1.1 |  |  | — |  |  | — |  |  | 147.1 |
Other Revenues from Contracts with Customers | 29.6 |  |  | 1.2 |  |  | 3.5 |  |  | 1.8 |  |  | 303.1 |  |  | (301.4) |  |  | 37.8 |
Reserve for Revenues Subject to Refund (1) | (93.4) |  |  | — |  |  | — |  |  | (0.9) |  |  | — |  |  | — |  |  | (94.3) |
Total Revenues from Contracts with Customers | 2,061.8 |  |  | 182.7 |  |  | 530.7 |  |  | 59.4 |  |  | 326.1 |  |  | (716.1) |  |  | 2,444.6 |
Alternative Revenue Programs | (7.9) |  |  | 2.7 |  |  | (112.6) |  |  | 2.3 |  |  | — |  |  | 102.0 |  |  | (13.5) |
Other Revenues (2) | 1.3 |  |  | 0.1 |  |  | 0.2 |  |  | 0.1 |  |  | — |  |  | — |  |  | 1.7 |
Total Operating Revenues | $ | 2,055.2 |  |  | $ | 185.5 |  |  | $ | 418.3 |  |  | $ | 61.8 |  |  | $ | 326.1 |  |  | $ | (614.1) |  |  | $ | 2,432.8 |
| For the Nine Months Ended September 30, 2021
Eversource (Millions of Dollars) | Electric Distribution |  | Natural Gas Distribution |  | Electric Transmission |  | Water Distribution |  | Other |  | Eliminations |  | Total
Revenues from Contracts with Customers |  |  |  |  |  |  |  |  |  |  |  |  |
Retail Tariff Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Residential | $ | 3,094.9 |  |  | $ | 722.8 |  |  | $ | — |  |  | $ | 102.8 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,920.5 |
Commercial | 1,902.9 |  |  | 356.4 |  |  | — |  |  | 47.0 |  |  | — |  |  | (4.1) |  |  | 2,302.2 |
Industrial | 261.1 |  |  | 119.5 |  |  | — |  |  | 3.3 |  |  | — |  |  | (12.8) |  |  | 371.1 |
Total Retail Tariff Sales Revenues | 5,258.9 |  |  | 1,198.7 |  |  | — |  |  | 153.1 |  |  | — |  |  | (16.9) |  |  | 6,593.8 |
Wholesale Transmission Revenues | — |  |  | — |  |  | 1,338.4 |  |  | — |  |  | 62.5 |  |  | (1,075.4) |  |  | 325.5 |
Wholesale Market Sales Revenues | 380.1 |  |  | 54.1 |  |  | — |  |  | 3.0 |  |  | — |  |  | — |  |  | 437.2 |
Other Revenues from Contracts with Customers | 68.4 |  |  | 3.6 |  |  | 10.2 |  |  | 5.5 |  |  | 936.6 |  |  | (929.6) |  |  | 94.7 |
Reserve for Revenues Subject to Refund (1) | (93.4) |  |  | — |  |  | — |  |  | (2.2) |  |  | — |  |  | — |  |  | (95.6) |
Total Revenues from Contracts with Customers | 5,614.0 |  |  | 1,256.4 |  |  | 1,348.6 |  |  | 159.4 |  |  | 999.1 |  |  | (2,021.9) |  |  | 7,355.6 |
Alternative Revenue Programs | 14.9 |  |  | 21.3 |  |  | (119.2) |  |  | 1.3 |  |  | — |  |  | 103.0 |  |  | 21.3 |
Other Revenues (2) | 3.2 |  |  | 0.1 |  |  | 0.7 |  |  | 0.3 |  |  | — |  |  | — |  |  | 4.3 |
Total Operating Revenues | $ | 5,632.1 |  |  | $ | 1,277.8 |  |  | $ | 1,230.1 |  |  | $ | 161.0 |  |  | $ | 999.1 |  |  | $ | (1,918.9) |  |  | $ | 7,381.2 |
| For the Three Months Ended September 30, 2020
Eversource (Millions of Dollars) | Electric Distribution |  | Natural Gas Distribution |  | Electric Transmission |  | Water Distribution |  | Other |  | Eliminations |  | Total
Revenues from Contracts with Customers |  |  |  |  |  |  |  |  |  |  |  |  |
Retail Tariff Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Residential | $ | 1,183.9 |  |  | $ | 45.5 |  |  | $ | — |  |  | $ | 45.8 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,275.2 |
Commercial | 682.7 |  |  | 41.1 |  |  | — |  |  | 17.1 |  |  | — |  |  | (1.4) |  |  | 739.5 |
Industrial | 91.0 |  |  | 17.5 |  |  | — |  |  | 1.3 |  |  | — |  |  | (3.6) |  |  | 106.2 |
Total Retail Tariff Sales Revenues | 1,957.6 |  |  | 104.1 |  |  | — |  |  | 64.2 |  |  | — |  |  | (5.0) |  |  | 2,120.9 |
Wholesale Transmission Revenues | — |  |  | — |  |  | 458.2 |  |  | — |  |  | 19.0 |  |  | (365.6) |  |  | 111.6 |
Wholesale Market Sales Revenues | 79.6 |  |  | 8.7 |  |  | — |  |  | 1.1 |  |  | — |  |  | — |  |  | 89.4 |
Other Revenues from Contracts with Customers | 20.7 |  |  | 1.3 |  |  | 3.2 |  |  | 0.7 |  |  | 303.3 |  |  | (299.0) |  |  | 30.2 |
Total Revenues from Contracts with Customers | 2,057.9 |  |  | 114.1 |  |  | 461.4 |  |  | 66.0 |  |  | 322.3 |  |  | (669.6) |  |  | 2,352.1 |
Alternative Revenue Programs | 1.7 |  |  | (4.0) |  |  | (72.3) |  |  | (2.0) |  |  | — |  |  | 67.0 |  |  | (9.6) |
Other Revenues (2) | 0.7 |  |  | 0.1 |  |  | 0.2 |  |  | 0.1 |  |  | — |  |  | — |  |  | 1.1 |
Total Operating Revenues | $ | 2,060.3 |  |  | $ | 110.2 |  |  | $ | 389.3 |  |  | $ | 64.1 |  |  | $ | 322.3 |  |  | $ | (602.6) |  |  | $ | 2,343.6 |
| For the Nine Months Ended September 30, 2020
Eversource (Millions of Dollars) | Electric Distribution |  | Natural Gas Distribution |  | Electric Transmission |  | Water Distribution |  | Other |  | Eliminations |  | Total
Revenues from Contracts with Customers |  |  |  |  |  |  |  |  |  |  |  |  |
Retail Tariff Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Residential | $ | 3,063.7 |  |  | $ | 399.6 |  |  | $ | — |  |  | $ | 113.2 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,576.5 |
Commercial | 1,815.7 |  |  | 243.5 |  |  | — |  |  | 47.7 |  |  | — |  |  | (3.7) |  |  | 2,103.2 |
Industrial | 248.4 |  |  | 67.0 |  |  | — |  |  | 3.6 |  |  | — |  |  | (10.1) |  |  | 308.9 |
Total Retail Tariff Sales Revenues | 5,127.8 |  |  | 710.1 |  |  | — |  |  | 164.5 |  |  | — |  |  | (13.8) |  |  | 5,988.6 |
Wholesale Transmission Revenues | — |  |  | — |  |  | 1,177.9 |  |  | — |  |  | 55.6 |  |  | (981.4) |  |  | 252.1 |
Wholesale Market Sales Revenues | 231.1 |  |  | 31.9 |  |  | — |  |  | 2.9 |  |  | — |  |  | — |  |  | 265.9 |
Other Revenues from Contracts with Customers | 63.3 |  |  | 4.1 |  |  | 9.9 |  |  | 2.8 |  |  | 845.1 |  |  | (838.0) |  |  | 87.2 |
Total Revenues from Contracts with Customers | 5,422.2 |  |  | 746.1 |  |  | 1,187.8 |  |  | 170.2 |  |  | 900.7 |  |  | (1,833.2) |  |  | 6,593.8 |
Alternative Revenue Programs | 54.8 |  |  | 22.9 |  |  | (52.7) |  |  | (4.1) |  |  | — |  |  | 48.9 |  |  | 69.8 |
Other Revenues (2) | 4.9 |  |  | 1.0 |  |  | 0.5 |  |  | 0.5 |  |  | — |  |  | — |  |  | 6.9 |
Total Operating Revenues | $ | 5,481.9 |  |  | $ | 770.0 |  |  | $ | 1,135.6 |  |  | $ | 166.6 |  |  | $ | 900.7 |  |  | $ | (1,784.3) |  |  | $ | 6,670.5 |
| For the Three Months Ended September 30, 2021 |  | For the Three Months Ended September 30, 2020
(Millions of Dollars) | CL&P |  | NSTAR Electric |  | PSNH |  | CL&P |  | NSTAR Electric |  | PSNH
Revenues from Contracts with Customers |  |  |  |  |  |  |  |  |  |  |
Retail Tariff Sales |  |  |  |  |  |  |  |  |  |  |
Residential | $ | 572.0 |  |  | $ | 401.9 |  |  | $ | 172.9 |  |  | $ | 608.7 |  |  | $ | 415.4 |  |  | $ | 159.8 |
Commercial | 249.4 |  |  | 411.3 |  |  | 88.5 |  |  | 244.7 |  |  | 358.3 |  |  | 80.1 |
Industrial | 35.0 |  |  | 35.9 |  |  | 25.3 |  |  | 38.0 |  |  | 30.6 |  |  | 22.4 |
Total Retail Tariff Sales Revenues | 856.4 |  |  | 849.1 |  |  | 286.7 |  |  | 891.4 |  |  | 804.3 |  |  | 262.3 |
Wholesale Transmission Revenues | 268.2 |  |  | 171.0 |  |  | 88.0 |  |  | 233.3 |  |  | 153.1 |  |  | 71.8 |
Wholesale Market Sales Revenues | 100.3 |  |  | 21.3 |  |  | 12.2 |  |  | 60.0 |  |  | 12.1 |  |  | 7.5 |
Other Revenues from Contracts with Customers | 12.1 |  |  | 14.3 |  |  | 7.3 |  |  | 8.1 |  |  | 10.5 |  |  | 3.7 |
(Reserve for)/Amortization of Revenues Subject to Refund (1) | (93.4) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 2.3 |
Total Revenues from Contracts with Customers | 1,143.6 |  |  | 1,055.7 |  |  | 394.2 |  |  | 1,192.8 |  |  | 980.0 |  |  | 347.6 |
Alternative Revenue Programs | (82.0) |  |  | (14.4) |  |  | (24.1) |  |  | (65.0) |  |  | 8.2 |  |  | (13.8) |
Other Revenues (2) | 0.2 |  |  | 0.7 |  |  | 0.6 |  |  | 0.2 |  |  | 0.7 |  |  | — |
Eliminations | (142.2) |  |  | (123.3) |  |  | (55.8) |  |  | (133.7) |  |  | (113.5) |  |  | (50.1) |
Total Operating Revenues | $ | 919.6 |  |  | $ | 918.7 |  |  | $ | 314.9 |  |  | $ | 994.3 |  |  | $ | 875.4 |  |  | $ | 283.7 |
| For the Nine Months Ended September 30, 2021 |  | For the Nine Months Ended September 30, 2020
(Millions of Dollars) | CL&P |  | NSTAR Electric |  | PSNH |  | CL&P |  | NSTAR Electric |  | PSNH
Revenues from Contracts with Customers |  |  |  |  |  |  |  |  |  |  |
Retail Tariff Sales |  |  |  |  |  |  |  |  |  |  |
Residential | $ | 1,558.6 |  |  | $ | 1,069.0 |  |  | $ | 467.3 |  |  | $ | 1,567.9 |  |  | $ | 1,057.9 |  |  | $ | 437.9 |
Commercial | 679.3 |  |  | 975.7 |  |  | 249.2 |  |  | 670.4 |  |  | 921.3 |  |  | 225.3 |
Industrial | 100.2 |  |  | 89.5 |  |  | 71.4 |  |  | 105.3 |  |  | 82.1 |  |  | 61.0 |
Total Retail Tariff Sales Revenues | 2,338.1 |  |  | 2,134.2 |  |  | 787.9 |  |  | 2,343.6 |  |  | 2,061.3 |  |  | 724.2 |
Wholesale Transmission Revenues | 652.8 |  |  | 478.2 |  |  | 207.4 |  |  | 576.5 |  |  | 430.3 |  |  | 171.1 |
Wholesale Market Sales Revenues | 278.1 |  |  | 64.7 |  |  | 37.3 |  |  | 163.9 |  |  | 39.8 |  |  | 27.4 |
Other Revenues from Contracts with Customers | 28.8 |  |  | 36.8 |  |  | 14.9 |  |  | 25.1 |  |  | 32.4 |  |  | 10.9 |
(Reserve for)/Amortization of Revenues Subject to Refund (1) | (93.4) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 6.9 |
Total Revenues from Contracts with Customers | 3,204.4 |  |  | 2,713.9 |  |  | 1,047.5 |  |  | 3,109.1 |  |  | 2,563.8 |  |  | 940.5 |
Alternative Revenue Programs | (74.2) |  |  | (11.3) |  |  | (18.8) |  |  | (27.8) |  |  | 31.1 |  |  | (1.2) |
Other Revenues (2) | 0.3 |  |  | 2.5 |  |  | 1.1 |  |  | 2.0 |  |  | 2.8 |  |  | 0.6 |
Eliminations | (394.0) |  |  | (362.0) |  |  | (142.6) |  |  | (371.9) |  |  | (327.5) |  |  | (124.6) |
Total Operating Revenues | $ | 2,736.5 |  |  | $ | 2,343.1 |  |  | $ | 887.2 |  |  | $ | 2,711.4 |  |  | $ | 2,270.2 |  |  | $ | 815.3 |
(1) The Electric Distribution segment 2021 revenue subject to refund amount relates to an October 1, 2021 CL&P settlement agreement with the DEEP, OCC, AG and the Connecticut Industrial Energy Consumers, which resolved certain issues that arose in pending regulatory proceedings initiated by the PURA. In the third quarter of 2021, CL&P recorded a reduction to Operating Revenues of $65 million on the income statement for a reserve for customer credits associated with the provisions of the settlement agreement. Additionally, CL&P recorded a $28.4 million reserve in the first quarter of 2021 for a civil penalty for non-compliance with storm performance standards to be credited to customers. The penalty was reclassified from Operations and Maintenance expense to a reduction of Operating Revenues in the third quarter of 2021 in connection with the finalization of the settlement agreement. In total, the reserve for revenues subject to refund totaled $93.4 million and was recorded as a current regulatory liability on CL&P’s balance sheet and as a reduction to Operating Revenues on the nine months ended September 30, 2021 income statement. See Note 9G, “Commitments and Contingencies - CL&P Regulatory Matters,” for further information. (2) Other Revenues include certain fees charged to customers that are not considered revenue from contracts with customers. Other Revenues also include lease revenues under lessor accounting guidance of $1.1 million (including $0.2 million at CL&P and $0.7 million at NSTAR Electric) and $1.1 million (including $0.2 million at CL&P and $0.7 million at NSTAR Electric) for the three months ended September 30, 2021 and 2020, respectively, and $3.8 million (including $0.6 million at CL&P and $2.5 million at NSTAR Electric) and $3.2 million (including $0.6 million at CL&P and $2.1 million at NSTAR Electric) for the nine months ended September 30, 2021 and 2020, respectively.

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 + Details
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