The Electricity Annual Technology Baseline (ATB) dataset has been updated for 2024 by the U.S. National Renewable Energy Laboratory. The free, open-source data system provides detailed cost and performance data for energy technologies as a valuable resource for U.S. utility planners and grid operators.

The Electricity ATB delivers both current and projected data in an easy-to-use format, providing detailed information tailored to different electricity generation technologies. The 2024 updates include a revised approach to floating offshore wind cost projection to better represent the maturation process for the technology. New capital cost data and projections from U.S. Idaho National Laboratory are also incorporated for both large-scale and advanced small modular nuclear power.

The data now feature improved alignment between representative geothermal plants, information on pumped storage hydropower sites that use existing reservoirs and transitioned to a new, more comprehensive bottom-up capital cost model. Levelized cost of energy, capital expenditures and other economic trends are summarized through 2050 for diverse wind, photovoltaic, geothermal, hydropower, battery storage, natural gas, coal and biopower systems.