Posted in xosquutfofpr

TVA planning for lots more solar generation, no new coal in next 20 years

first_imgTVA planning for lots more solar generation, no new coal in next 20 years FacebookTwitterLinkedInEmailPrint分享S&P Global Market Intelligence ($):The Tennessee Valley Authority’s future generation portfolio likely will include no new coal plants and a lot more solar, as the federal government-owned power supplier looks to build a more flexible generation system.TVA on Feb. 15 released a draft integrated resource plan, or IRP, that features different generation portfolios it can use to supply power the Tennessee Valley region will need over the next 20 years. The draft plan envisions a growing role for solar, with as much as 8,800 MW of nameplate solar capacity added by 2038. Over that time, TVA could see as much as 3,000 MW of coal capacity retired and the addition of thousands of megawatts of natural gas and storage resources.The draft plan puts particular importance on flexibility to account for an evolving energy marketplace. “The IRP is focused on flexibility because TVA needs a diverse power-generation system that is well-positioned to meet future demand; has the capacity to incorporate renewable energy sources and [distributed energy resources] along with more traditional resources; and has the capability to respond in a variety of circumstances well into the future,” the draft plan said.The draft plan has 30 different resource portfolios that vary depending on scenarios that account for things such as modest economic growth or rapid expansion of distributed energy resources, and strategies TVA could follow in the future, such as promoting renewables or resiliency.Each of the scenarios shows a need for new capacity, partly to replace resources to be retired or supply contracts that expire. Along with “substantial” solar expansion, the draft plan includes the addition of varying levels of gas, storage and demand response, depending on a strategic focus to ensure reliability and provide flexibility. The draft plan also sees no addition of baseload resources, aside from one case where small modular nuclear reactors are promoted for resiliency.The draft plan includes no new wind or hydro resources and no new coal plants. In most portfolios, additional coal unit retirements range from about 800 MW to 3,000 MW, depending on the scenario and strategy combination.More ($): TVA sees ‘substantial’ solar expansion over 20 yearslast_img

Leave a Reply

Your email address will not be published. Required fields are marked *