Customer Growth - As of December 31, 2024, the total electric retail customers increased to 225,088, up from 222,340 in 2023, representing a growth of 1.6%[30] - As of December 31, 2024, the total natural gas retail customers increased to 1,128,355, up from 1,116,393 in 2023, representing a growth of approximately 1.1%[48] Energy Supply and Demand - The system peak demand for Colorado Electric in summer 2024 was 394 MW, a decrease of 4.1% from 411 MW in summer 2023[30] - The power supply from coal decreased to 32.5% in 2024 from 35.0% in 2023, while natural gas increased to 29.4% from 26.4%[32] - Renewable energy purchases increased in 2024 due to new wind and solar power purchase agreements (PPAs) effective December 2023 and March 2024, respectively[33] - Seasonal variations significantly impact demand for natural gas, with higher demand typically observed during the winter months[50] Financial Performance - Revenue for the year ended December 31, 2024, was 2,127.7million,adecreaseof8.72,331.3 million in 2023[308] - Operating income increased to 503.1millionin2024,up6.8472.7 million in 2023[308] - Net income available for common stock was 273.1million,representinganincreaseof4.0262.2 million in 2023[308] - Basic earnings per share remained stable at 3.91forboth2024and2023[308]−Comprehensiveincomeavailableforcommonstockwas278.5 million in 2024, compared to 263.0millionin2023,anincreaseof5.8283.7 million, an increase of 2.5% from 276.0millionin2023[321]CostsandExpenses−Thetotalweightedaveragefuelandpurchasedpowercostdecreasedto24.66 per MWh in 2024 from 25.39in2023[34]−Theaveragepricepaidfornaturalgaswas15.64 per MWh in 2024, down from 20.20in2023[34]−Theweightedaveragecostofcoalusedforelectricitygenerationwas13.87 per MWh in 2024, compared to 13.40in2023[34]−Thecompanyreportedadecreaseinfuel,purchasedpower,andcostofnaturalgassoldto730.3 million in 2024 from 982.9millionin2023,adeclineof25.64,250.2 million in 2024, up from 3,801.2millionin2023,indicatingariseof11.8450.0 million, compared to 800.0millionin2023,indicatingadecreaseof43.810,022.6 million as of December 31, 2024, compared to 9,620.4millionin2023,reflectingagrowthof4.21,249.1 million in 2024, compared to 1,158.2millionin2023,anincreaseof7.81,299.5 million as of December 31, 2024, with 257.3millionattributedtoElectricUtilitiesand1,042.2 million to Gas Utilities[358]