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Power System Planning: Advancements in Capacity Expansion Modeling
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An electricity capacity expansion model (CEM) is a tool used in long-term planning studies for the power sector. This fact sheet summarizes key advancements in the CEM process resulting from low-cost clean energy, storage, and other new technologies.
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News and Events
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Policy and Regulatory Environment for Utility-Scale Energy Storage: India
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Energy storage has the potential to address many challenges in India's evolving power sector. This report was developed for policymakers to identify regulation, policy, and program priories that will enable storage deployment in India.
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News and Events
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Energy Storage in South Asia: Understanding the Role of Grid Connected Energy Storage in South Asia’s Power Sector Transformation
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Energy storage can provide many grid benefits, including flexibility. This study provides a first-of-its-kind assessment of cost-effective opportunities for grid-scale energy storage deployment in South Asia.
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News and Events
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Energy Storage
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Energy storage refers to technologies capable of storing electricity generated at one time for later use. These technologies can store energy in a variety of forms including as electrical, mechanical, electrochemical or thermal energy. Storage is an important resource that can provide system flexibility and better align the supply of variable renewable energy with demand by shifting the timing of energy supply and demand.
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Topics & Resources
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Grid-Scale Battery Storage: Frequently Asked Questions
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The National Renewable Energy Laboratory (NREL) has released a fact sheet titled, "Grid-Scale Battery Storage: Frequently Asked Questions." This fact sheet addresses questions and concerns policymakers and grid system operators may have regarding grid-scale battery energy storage systems.
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News and Events
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New Page - Energy Storage
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The Greening the Grid team has published a new page on Grid Integration titled, “Energy Storage.” This page provides basic background on energy storage technologies and the factors that influence their deployment.
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News and Events
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Summary of potential energy storage services and required response times and durations
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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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Site Images
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An Overview of Behind-the-Meter Solar-Plus-Storage Program Design: With Considerations for India
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This report has been prepared by the National Renewable Energy Laboratory (NREL) with support from the U.S. Agency for International Development (USAID) for discussion purposes with a broad range of stakeholders to find ways to regulate and facilitate DPV-plus-storage systems in India.
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News and Events
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Xcel CO Model PPA Semi-Dispatchable Resources 2017
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Xcel Energy's model PPA for 'semi-dispatchable' resources, which are defined as intermittent generators combined with some form of technologies which mitigates intermittency issues (such as concentrated solar generators and thermal storage or solar photovoltaic with battery storage). The PPA outlines requirements concerning telemetry, ancillary services, forecasting and more.
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Topics & Resources
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Demand Response and Storage
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Demand Response and Storage Folder
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The Role of Demand Response and Storage
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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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Quick Reads
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Fact Sheets
