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This is the 8th annual report from the United States Department of Energy’s Federal Energy Regulatory Commission (FERC) on demand response and advanced metering in the United States, based on publicly available information and interviews with market participants and industry partners. The assessment reviews penetration rates of advanced metering and communications technologies; existing demand response and time-based rate programs; annual resource contributions from demand resources; the potential for demand response as a quantifiable, reliable resource for regional planning; steps that have been taken in regional transmission planning and operations to ensure demand resources are provided equitable treatment as a quantifiable, reliable resource; and regulatory barriers to improved customer participation in demand response programs.
Located in Topics & Resources / Demand Response and Storage / Demand Response and Storage Folder
This document explores the benefits of expanding co-optimization of energy and ancillary services to hydropower. The author builds off of practices currently enacted for conventional generators and demonstrates that co-optimization improves the economics of hydropower plants.
Located in Topics & Resources / Flexible Generation / Flexible Generation folder
To enable distributed PV that can supply electricity during grid outages, this paper presents approaches specifically to support resiliency through design of PV systems utilizing storage technologies, community energy storage, solar-diesel hybrid systems, and micro-grids. The paper also considers policies and regulations to support distributed PV that contributes to resiliency.
Located in Topics & Resources / Distributed Generation / Distributed Generation folder
Energy Storage
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.
Located in Topics & Resources
This report estimates the storage required to enable PV penetration up to 50% in California (with renewable penetration over 66%), and quantifies the complex relationships among storage, PV penetration, grid flexibility, and PV costs due to increased curtailment. The authors find that storage needs depend strongly on the amount of other flexibility resources deployed. With very low-cost PV (three cents per kilowatt-hour) and a highly flexible electric power system, about 19 gigawatts of energy storage could enable 50% PV penetration with a marginal net PV levelized cost of energy (LCOE) comparable to the variable costs of future combined-cycle gas generators under carbon constraints.
Located in Topics & Resources / Demand Response and Storage / Demand Response and Storage Folder
This filmed presentation summarizes a 2014 report from Ecofys. The first half of the video discusses the grid operation challenges that arise with high penetrations of variable RE. The second half of the video describes the various technical, regulatory, and market options for improving flexibility of the grid over the short-, medium-, and long-term. The Ecofys report includes factsheets on the following topics: Active Power Control (pg. 19), Demand Management in Industrial Installations and in Services and Households (pgs. 21-22), Electric Vehicles (pg. 23), Compressed Air Storage (pg. 27), Fly Wheels (pg. 28), and Batteries (pg. 29).
Located in Topics & Resources / Ancillary Services / Ancillary Services folder
The report includes both a broader look at the European hydropower market as well as detailed flexibility case studies in the Nordic power system, Austria, Poland, Norway, Germany, Switzerland and Ireland.
Located in Topics & Resources / Flexible Generation / Flexible Generation folder
This report details the barriers that restrict the deployment of energy storage technologies in the United States. The findings are based on interviews with stakeholders and review of regulatory filings in four regions roughly representative of the country. The report suggests that while high capital costs remain a barrier to energy storage, deployment is also impacted by regulatory, market (economic), utility and developer business model, cross-cutting, and technology barriers.
Located in Topics & Resources / Demand Response and Storage / Demand Response and Storage Folder
This case study is based on interviews with PG&E (a California utility) and explores the institutional circumstances surrounding the implementation of PG&E’s SmartRate™ dynamic rate program. The case study focuses on implementation and procedural challenges, reactions and perceptions of stakeholders involved, and lessons learned. The case study is not intended to evaluate the program but offers insight into the internal workings, attitudes, and relationships of a utility successfully implementing a demand response program.
Located in Topics & Resources / Demand Response and Storage / Demand Response and Storage Folder
This report summarizes a three-year, U.S. Department of Energy commissioned study that assesses the value of hydropower to the U.S. power system for both pumped and traditional plants. The report includes an assessment of the current market structures and costs and ways to increase the value of hydropower.
Located in Topics & Resources / Flexible Generation / Flexible Generation folder
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