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Highlights • Progress continues on Georgia Power’s Vogtle nuclear expansion project (~2,200 MW), which will be the first nuclear units in the United States to use the Westinghouse AP1000 advanced pressurized water reactor technology. The current in-service date is early 2021. • Entities in SERC SE do not anticipate any transmission limitations/constraints with significant impacts to reliability or generation shortfalls throughout the planning horizon. Projected Demands, Resources, and Reserve Margins (Summer) Demand (MW) 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 Total Internal 47,311 47,748 47,882 48,057 48,289 48,450 47,923 48,208 46,970 47,342 Demand Response 2,145 2,354 2,565 2,557 2,542 2,556 2,555 2,562 2,568 2,576 Net Internal 45,166 45,394 45,317 45,500 45,747 45,894 45,368 45,646 44,402 44,766 Resources (MW) Anticipated 60,626 60,900 62,470 63,488 64,674 64,685 64,747 64,749 64,752 64,754 Prospective 60,915 61,739 64,233 65,331 66,597 66,608 66,670 66,672 66,675 66,677 Reserve Margins (%) Anticipated 34.23% 34.16% 37.85% 39.53% 41.37% 40.94% 42.71% 41.85% 45.83% 44.65% Prospective 34.87% 36.01% 41.74% 43.58% 45.58% 45.13% 46.95% 46.06% 50.16% 48.95%
SERC Southeast The SERC Southeast (SERC SE) subregion is a summer peaking system that consists of the following Planning Coordinators: Georgia Transmission Corporation, Municipal Electric Authority of Georgia, PowerSouth Energy Cooperative, and Southern Company.
Existing On-Peak Generation (Summer) Generation Type Peak Capacity MW Percent Biomass B 361 0.6% Coal C 16,935 27.5% Gas N 30,240 49.1% Hydro H 3,288 5.3% Nuclear N 5,818 9.5% Other O 315 0.5% Petroleum P 961 1.6% Pumped Storage P 1,632 2.7% Solar S 2,003 3.3% Wind W 0 0.0%
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