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Revenue from Contracts with Customers
 3 Months Ended
Mar. 31, 2025
Revenue from Contract with Customer [Abstract]  
Revenue from Contracts with Customers
3. Revenue from Contracts with Customers

(All Registrants)

See Note 3 in the Registrants' 2024 Form 10-K for a discussion of the principal activities from which PPL Electric, LG&E and KU and PPL’s Pennsylvania Regulated, Rhode Island Regulated, and Kentucky Regulated segments generate their revenues. The following tables reconcile "Operating Revenues" included in each Registrant's Statement of Income with revenues generated from contracts with customers for the periods ended March 31.
2025 Three Months
PPL PPL ElectricLG&EKU
Operating Revenues (a)(b)$2,504 $819 $505 $564 
   Revenues derived from:
Alternative revenue programs (c)50 (2)2 4 
Other (d)(9)(5)(1)(2)
Revenues from Contracts with Customers$2,545 $812 $506 $566 
2024 Three Months
PPLPPL ElectricLG&EKU
Operating Revenues (a)(b)$2,304 $770 $476 $525 
   Revenues derived from:
Alternative revenue programs (c)7 (3)2 5 
Other (d)(8)(5)(1)(1)
Revenues from Contracts with Customers$2,303 $762 $477 $529 
(a)PPL includes $626 million for the three months ended March 31, 2025 and $549 million for the three months ended March 31, 2024 of revenues from external customers reported by the Rhode Island Regulated segment. PPL Electric represents revenues from external customers reported by the Pennsylvania Regulated segment and LG&E and KU, net of intercompany power sales and transmission revenues, represent revenues from external customers reported by the Kentucky Regulated segment. See Note 2 for additional information.
(b)PPL's transition services agreement associated with the RIE acquisition ended in the third quarter of 2024. In conjunction with the completion of the agreement, PPL conformed the presentation of RIE's and the Rhode Island Regulated segment’s net metering charges with the presentation of the other segments, resulting in an increase in Operating Revenues and a corresponding increase in Energy purchases beginning in the fourth quarter of 2024. For the quarter ended March 31, 2025, net metering of $41 million was included in Energy purchases on PPL's Statement of Income. For the quarter ended March 31, 2024, $32 million of net metering was presented as a reduction of Operating Revenues on PPL's Statement of Income.
(c)This line item shows the over/under collection of rate mechanisms deemed alternative revenue programs with over-collections of revenue shown as positive amounts in the table above and under-collections shown as negative amounts.
(d)Represents additional revenues outside the scope of revenues from contracts with customers, such as lease and other miscellaneous revenues.

The following tables show revenues from contracts with customers disaggregated by customer class for the periods ended March 31.
Three Months
ResidentialCommercialIndustrialOther (a)Wholesale - municipalityWholesale - other (b)TransmissionRevenues from Contracts with Customers
PPL
2025
PA Regulated$457 $106 $13 $13 $— $— $223 $812 
KY Regulated487 280 154 96 7 38 — 1,062 
RI Regulated (c)441 197 18 (35)— — 50 671 
Total PPL$1,385 $583 $185 $74 $7 $38 $273 $2,545 
2024
PA Regulated$426 $106 $12 $13 $— $— $205 $762 
KY Regulated443 267 161 97 6 15 — 989 
RI Regulated (c)261 78 4 161 — — 47 551 
Corp and Other — — — 1 — — — 1 
Total PPL$1,130 $451 $177 $272 $6 $15 $252 $2,303 
PPL Electric
2025$457 $106 $13 $13 $— $— $223 $812 
2024$426 $106 $12 $13 $— $— $205 $762 
LG&E
2025$239 $147 $46 $54 $— $20 $— $506 
2024$218 $138 $47 $52 $— $22 $— $477 
KU
2025$248 $133 $108 $42 $7 $28 $— $566 
2024$225 $129 $114 $46 $6 $9 $— $529 
(a)Primarily includes revenues from pole attachments, street lighting, other public authorities and other non-core businesses, and for the Rhode Island Regulated Segment certain regulatory deferral mechanisms which could result in a reduction in revenues from over collections. For the period ended 2024, the Rhode Island Regulated segment primarily includes open access tariff revenues, which are calculated on combined customer classes.
(b)Includes wholesale power and transmission revenues. LG&E and KU amounts include intercompany power sales and transmission revenues, which are eliminated upon consolidation at the Kentucky Regulated segment.
(c)PPL's transition services agreement associated with the RIE acquisition ended in the third quarter of 2024. In conjunction with the completion of the agreement, PPL disaggregated the 2024 revenues of the Rhode Island Regulated segment in a manner consistent with that of its other segments. This resulted in certain customer revenues for the Rhode Island Regulated segment, which were previously presented in the "Other" category, being presented in the "Residential", "Commercial" or "Industrial" customer classes beginning in the fourth quarter of 2024. Applying the previous methodology to 2025 revenues would result in $155 million of Residential, $89 million of Commercial and $13 million of Industrial for the Rhode Island Regulated segment being presented as "Other" for the three months ended March 31, 2025.

As discussed in Note 2, PPL segments its business by geographic location. Revenues from external customers for each segment are reconciled to revenues from contracts with customers in the footnotes to the tables above.

Contract receivables from customers are primarily included in "Accounts receivable - Customer", "Unbilled revenues", and "Other noncurrent assets" on the Balance Sheets.

The following table shows the accounts receivable and unbilled revenues balances that were impaired for the periods ended March 31.
Three Months
20252024
PPL (a)$25 $42 
PPL Electric (a)7 28 
LG&E2 1 
KU1 1 
(a)2024 includes amounts impaired related to PPL Electric's billing issues.

Contract liabilities result from recording contractual billings in advance for customer attachments to the Registrants' infrastructure and payments received in excess of revenues earned to date. Advanced billings for customer attachments are generally recognized as revenue ratably over the quarterly billing period. Payments received in excess of revenues earned to date are recognized as revenue as services are delivered in subsequent periods. PPL's contract liabilities are not material at March 31, 2025 and 2024.