Investor Presentaiton

NV Energy Business Update • Retail load growth Nevada Power: Actual retail load for nine-months ending September 30, 2021, was 18,575 GWh; an 812 GWh (4.6%) increase compared with the same time period last year, primarily due to increased large customer usage relative to the same period in 2020, which was down due to the COVID-19 pandemic Sierra Pacific: Actual retail load for nine-months ending September 30, 2021, was 8,504 GWh; a 286 GWh (3.5%) increase compared with the same time period last year, primarily due to increased large customer usage relative to the same period in 2020, which was down due to the COVID-19 pandemic • In September 2021, the Nevada Utilities filed an application for the approval of their Economic Recovery Transportation Electrification Plan to accelerate transportation electrification in the state of Nevada - Pursuant to Senate Bill 448, the plan proposes the development of a public charging network, including NV Energy-owned charging infrastructure If approved, NV Energy would invest $100 million over the period of January 1, 2022, to December 2024 • In 2022, Sierra Pacific will file its triennial general rate case 50 60

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