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Operational flexibility refers to the ability of a power system to respond to changes in electricity demand and generation. Flexibility is particularly important for power systems that integrate high levels of solar and wind, whose power outputs can be variable and uncertain, creating a fluctuating supply.
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International Energy Agency, 2018
Located in Integration Topics / Flexible Generation / Flexible Generation folder
Image Summary of potential energy storage services and required response times and durations
The figure highlights which services can be provided, depending on the location of the storage system, as well as the required response times (left side of the bar) and duration (right side of the bar) for each service.
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Power system planning methods and processes can evolve to address the unique characteristics of variable renewable energy (VRE). This brief presents an overview of the analyses involved in traditional power system planning, and describes the changes required to plan for higher levels of VRE integration.
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Affordably integrating high levels of variable renewable energy (VRE) sources such as wind and solar requires a flexible grid. Storage and demand response provide means to better align wind and solar power supply with electricity demand patterns: storage shifts the timing of supply, and demand response shifts the timing of demand.
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Mexico is a regional leader in setting goals for reducing greenhouse gas emissions (GHG) and distributed generation (DG) development is a key priority for the country's policymakers. Current DG policies have fostered growth but need to be modernized to serve current needs and accommodate higher penetration levels. In this report, NREL summarizes international DG policy experiences and best practices and identifies the potential opportunities for policy reform.
Located in Topics & Resources / Regulation & Public Policy / Regulation & Public Policy folder
Upcoming Webinar - "Minnesota’s Smarter Grid Report"
The Energy Systems Integration Group is hosting a no-cost webinar titled "Minnesota's Smarter Grid Report" featuring speakers from Vibrant Clean Energy and the McKnight Foundation. The webinar will be held on February 6, 2019 2:00 pm EST.
Located in News and Events
An important aspect of power system planning is ensuring that adequate generation capacity exists to meet electricity demand during all hours of the year. Mechanical failures, planned maintenance, or lack of on-demand generating resources (especially for variable renewable resources) may leave a power system with insufficient capacity to meet demand. Grid planners project future peak demand patterns and estimate the relative contribution of each generator towards achieving a reliable supply of energy. When generating during peak demand periods, variable renewable energy (VRE) such as wind or solar PV provides capacity value to the system. By providing capacity value, VRE can help to defer capital investments in traditional generation and transmission infrastructure.
Located in Quick Reads / Fact Sheets
Spanish-language myths fact sheet.
Located in Quick Reads / Fact Sheets
Wind and solar are inherently more variable and uncertain than the traditional dispatchable thermal and hydro generators that have historically provided a majority of grid-supplied electricity. The unique characteristics of variable renewable energy (VRE) resources have resulted in many misperceptions regarding their contribution to a low-cost and reliable power grid.
Located in Quick Reads / Fact Sheets
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