This resource assessment includes hourly resource profiles and removes areas that would not be suitable for development. The NREL researchers began with high-resolution maps of the Carolinas’ wind and solar resource. NREL released its Phase 2 report this week, which is the subject of the rest of this news article.įlowchart illustrates methods and modeling tools used in the NREL Carbon-Free Resource Integration Study.
In this phase, NREL deployed a suite of planning tools to evaluate scenarios representing Duke Energy in both the near term (2030) and long term (2050). The recently completed Phase 2 analysis provided a deeper analysis into the potential investments, costs, and effects on operations as Duke Energy integrates carbon-free energy.
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Read the full Phase 1 report to learn more. In Phase 1, the researchers conducted a preliminary analysis of adding substantial new solar energy to the system, in which they ratcheted solar output up to 30% of annual generation-leading to an 80% carbon-free system when considering output from wind, nuclear, and hydro-showing how solar curtailment ramps up as more is added to the system in future deployment scenarios. NREL’s project with Duke Energy included two phases. Planning Tools for Renewable Power Systems Although specific to Duke Energy’s system, this Carbon-Free Resource Integration Study offers a modeling approach that can be customized for any utilities’ carbon-free resource planning, using a variety of accessible NREL tools. To support this transition, the National Renewable Energy Laboratory (NREL) has engaged in a multiyear project with Duke Energy that identified least-cost pathways for carbon-free power in the region. In 2021, North Carolina passed legislation codifying a 70% emissions-reduction target for 2030 and a net-zero carbon dioxide emissions target for 2050, with Duke Energy also establishing its own goal of a net-zero CO 2 emissions power system by 2050.Īchieving these targets while providing reliable and affordable power in the Carolinas is a central focus for Duke Energy’s long-term planning. Like many utilities, Duke Energy is working with NREL to investigate the pathways to a decarbonized grid, as well as opportunities to reduce carbon emissions in coordination with policymakers and regulators.
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