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Investor Presentaiton

• • • Sustainability NV Energy Since 2018, NV Energy has received approval for 12 utility-scale solar projects totaling nearly 2,700 MWs of solar generation and over 1,000 MWs of battery storage which will be in-service by 2024, including the company-owned 150 MW Dry Lake solar photovoltaic project which will be collocated with 100 MWs of integrated battery storage, with the difference procured through power purchase agreements. These projects are in addition to approximately 1,000 MWs of operating solar power for which approval was obtained prior to 2018, of which 15 MW are company-owned In its 2021 Joint IRP filed June 1, 2021, NV Energy requested approval to build 600 MWs of solar and 480 MWs of integrated battery storage that will enable the retirement of NV Energy's last coal-fueled generating station, North Valmy, by the end of 2025 NV Energy's 2021 IRP meets all Nevada RPS requirements (e.g., 50% by 2030) and the state's 2050 net-zero carbon emissions goal NV Energy 2021 IRP - Forecast Generation as Percent of Demand 100% 6% 11% 13% 80% 40% 42% 60% 1% 55% 1% 8% 40% 4% 20% 45% 42% 0% (3%) (3%) 14% 11% 6% 66% 75% 85% -3% 2% 1% 2% 2% 28% 1% 17% 11% 1% 7% 0% (7%) (11%) (16%) (23%) (20%) (40%) 2025 2030 2035 2040 2045 ■Firm Dispatchable (1) ■Geothermal, Hydro & Other ■Wind Solar Standalone & Storage Hybrid ■Market 2050 Excess Energy (2) (1) Firm dispatchable resources represent technologies that can supply electricity reliably on demand for hours, days or weeks at a time. For the purpose of the 2021 IRP, this resource type was modeled with the characteristics of gas turbines due to the lack of sound data on proven, appropriate low-carbon alternatives. In the future, firm dispatchable resources could include the use of hydrogen as a fuel, fuel cells or biofuel combustion units (2) Excess energy represents renewable energy in excess of forecast load requirements, some of which may be mitigated through out-of-state sales or more efficient use of battery storage than modeled 29
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