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New Fact Sheet Published: The Role of Storage and Demand Response

A new Greening the Grid fact sheet titled “The Role of Storage and Demand Response” has been published. 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. This fact sheet overviews the benefits, tradeoffs, and analysis challenges associated with employing demand response and storage to increase the penetration of variable renewable energy.

Click here to view The Role of Storage and Demand Response fact sheet.

Read more about this topic on the demand response and storage topic page

Download fact sheets on other topics here

Upcoming Webinar - "Operating High Variable, Renewable Generation Power Systems: Lessons Learned from Ireland and Northern Ireland"

The Clean Energy Solutions Center, in partnership with EirGrid, is hosting a webinar titled "Operating High Variable, Renewable Generation Power Systems: Lessons Learned from Ireland and Northern Ireland." The webinar will take place on 16 September, 2015 at 10:00 EDT, 16:00 CEST.

Click here for more information and to reserve your seat. 

Upcoming Webinar - "How Distribution Grids Can Integrate More Renewable Energy: Lessons Learned from the GRID4EU Project"

The Clean Energy Solutions Center, in partnership with the International Smart Grid Action Network (ISGAN), is hosting a webinar titled "How Distribution Grids Can Integrate More Renewable Energy: Lessons Learned from the GRID4EU Project." The webinar will take place on 29 September, 2015 at 9:00 EDT, 15:00 CEST.

Click here for more information and to reserve your seat. 

First MAIN Energy Transformation Dialogue facilitates knowledge sharing to accelerate clean, distributed power

The first Energy Transformation Dialogue of the Mitigation Action Implementation Network (MAIN) was held August 5-7 in California. Co-hosted by the Center for Clean Air Policy and the California Energy Commission, the event brought together senior energy officials from several Latin American and Asian countries to share lessons from the power sector transformation underway in California and other countries. Greening the Grid contributed to the event with a presentation titled "Greening the Grid: Integrating Renewable Energy into the Grid.”

Click here more information and to download presentations from the event.

New IRENA report on designing national roadmaps for power sector transformation

The International Renewable Energy Agency (IRENA) has published a new report, "The Age of Renewable Power: Designing National Roadmaps for Successful Transformation." This report provides a guiding framework that policymakers can adapt to identify options and develop national roadmaps for integrating variable renewable energy to the power system.

For more information, see the IRENA website

Upcoming Webinar - "Flexibility Strategic Roadmap"

This webinar, organized by Leonardo Energy and scheduled for October 29th at 16:00 CET, will present a new Ecofys report, "Power System Flexibility Strategic Roadmap." The report synthesizes for a less technical audience the policies, technical changes, and institutional systems that will contribute flexibility to power systems to facilitate the integration of renewable energy.

Click here to learn more and register for the webinar. 

Geospatial Toolkits Available for Wind and Solar Resource Analysis

The Geospatial Toolkit (GsT) is a free, open-source, map-based software application that provides an intuitive, user-friendly interface for visualizing and quantifying a country or region’s renewable energy potential.

The GsT maps renewable energy resources (e.g., for solar, wind, and biomass) in relation to enabling infrastructure like roads and transmission lines, providing the government and private sector important information for investments in new generation. The GsT’s query functionality also enables targeted quantitative analysis of solar, wind, and biomass potential under a variety of user-defined scenarios to inform high-level prospecting and integrated planning. GsTs have been developed for over 20 countries. Geospatial Toolkits are available for download online

New Fact Sheet Published: Forecasting Wind and Solar Generation

A new Greening the Grid fact sheet titled “Forecasting Wind and Solar Generation” has been published. Forecasting is a crucial and cost effective tool for integrating variable renewable energy (VRE) resources such as wind and solar into power systems. This fact sheet overviews the benefits, tradeoffs, and analysis challenges associated with integrating VRE forecasting into power system operations.

Click here to view the Forecasting Wind and Solar Generation fact sheet.

Read more about this topic on the forecasting topic page

Download fact sheets on other topics here

New Forecasting Resource: Model Wind Power Purchase Agreement

A new example has been added to the Forecasting topic page.

Xcel Energy’s Model Wind Power Purchase Agreement provides an example of a mechanism that enables a system operator to collect relevant forecasting data from wind power generators.

Click here to view the Forecasting topic page, or click here to open the Model Wind Power Purchase Agreement in a new window.

New Fact Sheet Published: Grid-Integrated Distributed Solar

Distributed, grid-connected photovoltaic (PV) solar power poses a unique set of benefits and challenges. This fact sheet overviews common technical impacts of PV on electric distribution systems and utility operations (as distinct from other utility concerns such as tariffs, rates, and billing), as well as emerging strategies for successfully managing some of the priority issues.

Click here to view the Grid-Integrated Distributed Solar fact sheet.

Read more about this topic on the Distributed Generation topic page.

Four Facts Sheets now available in Spanish

Four Spanish-language Fact Sheets are now available.

These Fact Sheets cover topics including solar and wind power forecasting, myths and misperceptions of variable RE integration, key issues related to variable RE integration, as well as an introduction to Greening the Grid. 

Follow the links below to download the Fact Sheets:

New Fact Sheet Published: Renewable Energy Zones

The Renewable Energy Zone (REZ) concept has emerged as a transmission planning tool to help scale up the penetration of solar, wind, and other resources on the power system.

This Fact Sheet describes the REZ transmission planning concept and its potential benefits, outlines the implementation steps for a successful REZ process, and provides an illustrative example of a successful REZ framework that was implemented in Texas.

Click here to view the Renewable Energy Zones fact sheet.

Download fact sheets on other grid integration topics here.

 

New Fact Sheets on PPAs, Grid Integration Studies

Two new resources on important grid integration topics are now available on Greening the Grid. The "Grid Integration Studies: Advancing Clean Energy Planning and Deployment" fact sheet overviews the types of and process for conducting grid integration studies. The "Designing Wind and Solar Power Purchase Agreements to Support Grid Integration" fact sheet provides a brief summary of key PPA components that can enable VRE generators to enhance grid stability and serve as a source of power system flexibility.
Click here to view the Grid Integration Studies: Advancing Clean Energy Planning and Deployment fact sheet.

Click here to view the Designing Wind and Solar Power Purchase Agreements to Support Grid Integration fact sheet.

Download fact sheets on other topics here

New Resource: Storage Needs For Very High PV Penetration

A new resource is now available on the Demand Response and Storage topic page: Energy Storage Requirements for Achieving 50% Solar Photovoltaic Energy Penetration in California

A new report from the National Renewable Energy Laboratory 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. Results indicate that 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. 

Click here to view and download the report.

Click here to learn more about Demand Response and Storage.

New Resource: Eastern Renewable Generation Integration Study

A new resource is now featured on the Grid Integration Studies topic page: the Eastern Renewable Generation Integration Study (ERGIS)

This recent study from the National Renewable Energy Laboratory uses cutting-edge modeling tools and data to show how the power grid of the Eastern Interconnection, one of the largest power systems in the world, can accommodate up to 30% wind and solar in the power mix. The study examines four potential scenarios of wind and solar power development in the United States. A key result indicates that integrating up to 30% variable wind and solar generation is technically feasible, but would likely require increased balancing area cooperation, incentives for transmission and generation to provide ancillary services, and increased flexibility of traditional generation resources. 

Click here to learn more about the Eastern Renewable Generation Interconnection Study

Click here to learn more about Grid Integration Studies

New Webinar Available: Big, Fast and Flexible: Grid Operations for Efficient Variable Renewable Integration

A growing body of research and operational experience highlights the value of large balancing areas and fast system operations to cost-effectively integrating high penetrations of wind and solar on the grid.

This webinar provides an overview of the "big and fast" concept for efficient integration of variable renewables to the grid. Following a brief introduction to the basics of power system operations and power system flexibility, the webinar presents various methods and examples of pathways for moving towards larger balancing areas and faster dispatch under different institutional contexts.

Click here to view the webinar.

Click here for more Greening the Grid training materials.

Recent workshop on "Flexibility in future energy systems"

The International Smart Grid Action Network (ISGAN) and the International Energy Agency (IEA) recently held a workshop on "Flexibility in future energy systems."

Held on 11th October in Paris, France, this workshop focused on the increasing need for flexibility in energy systems to accommodate larger shares of variable renewable, and the role of smart grids in providing system flexibility and contributing to electrification in developing economies. Leading experts from around the world presented on a wide range of topics including demand response and energy storage, large-scale power transmission, market design, interconnection procedures, and ancillary services. 

Click here for presentation materials from the workshop.

Click here for a summary of workshop proceedings.

For more information and announcements of upcoming events, visit the International Smart Grid Action Network (ISGAN) website.

New Webinar Available: "Distributed Solar on the Grid: Key Opportunities and Challenges"

Distributed, grid-connected photovoltaic (DGPV) systems pose a unique set of opportunities and challenges. Key technical and economic challenges related to DGPV integration are shaping how we plan, operate, regulate and even conceptualize the power system.

Panelists in the webinar provided a high-level overview of the USAID Distributed Generation Technical Assistance program, provided some context as to the prospective role of DGPV in developing countries and discussed the key economic and technical challenges/opportunities associated with DGPV programs, including:

  • Challenges of DGPV to the traditional utility business model and potential solutions
  • Various costs and benefits of DGPV
  • Ensuring DGPV systems are “good grid citizens” through promotion of technical standards, interconnection processes and mitigation strategies
  • Challenges and opportunities for distribution system planning under increasing penetrations of DGPV

Click here to view this webinar.

Click here for more Greening the Grid trainings.

New Technical Assistance Resource Launched: Renewable Energy Explorer

The National Renewable Energy Laboratory, with support from the U.S. Agency for International Development, has recently launched the Renewable Energy (RE) Explorer.

RE Explorer provides data, decision-support tools, and training to renewable energy project developers, policymakers, and decision makers in developing countries. The RE Explorer’s flagship geospatial analysis tool, the RE Data Explorer, provides free-of-charge access to high-quality data and sophisticated geospatial analysis tools. Taken together, these online tools and resources enable evidence-based decision making to support cost-effective renewable energy planning and development. The RE Data Explorer is currently available for nine countries in Asia and Central Asia, and two countries in Africa.

Visit RE Explorer for more information and to access the RE Data Explorer

New Cross-Cutting Resource: Maintaining Reliability in the Modern Power System

The U.S. Department of Energy recently released a new resource that summarizes traditional and new approaches to maintaining a reliable electric system in the U.S.

As the U.S. power sector undergoes a transition to higher levels of distributed and variable generation, a range of new approaches are emerging that help ensure reliable and cost-effective electricity services. This report provides insights into emerging trends in the U.S. power system and serve as a reference for countries around the world that are considering a transition to higher RE power systems.

Click here to access the full report.

See the Cross-Cutting Topic Page for more resources.

New Cross-Cutting Resource: Getting Wind and Solar onto the Grid

This recently released report by the International Energy Agency (IEA) provides a comprehensive review and clarification of the challenges and solutions for integrating grid-connected wind and solar energy.

Intended for policymakers and staff at energy ministries, the report reviews measures to maintain the cost-effectiveness and reliability of power systems over four stages of increasing VRE deployment. Policy and regulatory measures covered in this report include grid codes, power system planning, renewable energy forecasting, and transmission and distribution network improvements, among others. 

Click here to access the full report.

See the Cross-Cutting Topic Page for more resources.

Upcoming Webinar: Power Purchase Agreements for Grid-Aware Renewable Energy Procurement

Greening the Grid, in partnership with USAID, the National Renewable Energy Laboratory (NREL), and the Clean Energy Solutions Center, is hosting a no-cost, webinar-based training titled Power Purchase Agreements for Grid-Aware Renewable Energy Procurement.

Power purchase agreements (PPAs) are a key mechanism that utilities use to procure variable renewable energy from independent power producers. A PPA is a long-term (20-25 year) contract that codifies all aspects of the electricity sale, including the price of electricity and the associated legal obligations of both parties. This webinar will focus on PPA provisions that can enable wind and solar technologies to enhance grid stability and contribute to power system flexibility. Key considerations including ancillary services, advanced telemetry, and automatic generation control will be discussed. This discussion will be followed with a guest presentation by Xcel Energy, a vertically integrated electricity utility in the United States and the largest wind buyer in the country, to discuss Xcel Energy’s Model PPA for wind power systems.

The webinar will be presented by Barbara O’Neill from NREL and Tara Fowler from Xcel Energy. It will be followed by an interactive question and answer session with the audience, moderated by Ilya Chernyakhovskiy from NREL.

The webinar will take place on 9 May, 2017, 11:00 a.m. EDT | 5:00 p.m. CEST

Click here for more information.

Click here to reserve your seat.

Webinar: Power Purchase Agreements for Grid-Aware Renewable Energy Procurement

Power purchase agreements (PPAs) are a key mechanism that utilities use to procure variable renewable energy from independent power producers.
When May 09, 2017
from 09:00 AM to 10:30 AM
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A PPA is a long-term (20-25 year) contract that codifies all aspects of the electricity sale, including the price of electricity and the associated legal obligations of both parties. This webinar will focus on PPA provisions that can enable wind and solar technologies to enhance grid stability and contribute to power system flexibility. Key considerations including ancillary services, advanced telemetry, and automatic generation control will be discussed. This discussion will be followed with a guest presentation by Xcel Energy, a vertically integrated electricity utility in the United States and the largest wind buyer in the country, to discuss Xcel Energy’s Model PPA for wind power systems.

The webinar will be presented by Barbara O’Neill from NREL and Tara Fowler from Xcel Energy. It will be followed by an interactive question and answer session with the audience, moderated by Ilya Chernyakhovskiy from NREL.

Click here for more information.

Click here to reserve your seat.

New Webinar Available: Power Purchase Agreements for Grid-Aware Renewable Energy Procurement

Power purchase agreements (PPAs) are a key mechanism that utilities use to procure variable renewable energy from independent power producers.

A PPA is a long-term (20-25 year) contract that codifies all aspects of the electricity sale, including the price of electricity and the associated legal obligations of both parties. This webinar focuses on PPA provisions that can enable wind and solar technologies to enhance grid stability and contribute to power system flexibility. Discussed are key considerations, including ancillary services, advanced telemetry, and automatic generation control. The discussion is followed with a presentation by Xcel Energy, a vertically integrated electricity utility in the United States and the largest wind buyer in the country, to discuss Xcel Energy’s Model PPA for wind power systems.

Click here to view this webinar.

Click here to download the slides from this webinar.

See the Trainings page for more webinars on grid integration topics.

New Topic Page: Planning for Grid Integration

A new topic page is available on Greening the Grid! See the Planning for Grid Integration Topic Page on the Integration in Depth tab.

Policymakers, regulators, and system operators use a variety of tools and methodologies to evaluate and approve plans for new power system resources to reliably meet future electricity demand. As power systems integrate higher levels of variable renewable energy (RE) generation, traditional methods and models for generation and transmission planning can be revised to ensure that power systems remain reliable and cost-effective. 

Click here to visit the Planning for Grid Integration Topic Page.

Upcoming Webinar - "Transmission Planning for a High Renewable Energy Future"

Lessons from the Texas Competitive Renewable Energy Zones Process

Greening the Grid, in partnership with the Clean Energy Solutions Center, the United States Agency for International Development (USAID), the National Renewable Energy Laboratory (NREL), and the Electric Reliability Council of Texas (ERCOT), is hosting a no-cost, webinar-based training on Transmission Planning for A High Renewable Energy Future: Lessons from the Texas Competitive Renewable Energy Zones Process. This webinar is part of the GreeningTheGrid.org toolkit, a USAID and NREL collaboration designed to support countries in integrating renewable energy into the power system.

This webinar will provide an overview of the CREZ process, including the regulatory, procedural, and technical considerations that were critical to its successful implementation in Texas. The webinar will also introduce a Renewable Energy Zones "Toolkit" developed through a USAID and NREL partnership and intended to guide other power systems in adapting elements of the CREZ approach to their own power system planning processes.

The webinar will be presented by Mr. Jeff Billo from ERCOT and Dr. Nathan Lee from NREL and will be followed by an interactive question and answer session with the audience.

10:00 a.m. EDT | 3:00 p.m. CEST

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Register Now.
For more information.


Webinar: Transmission Planning for a High Renewable Energy Future

Lessons from the Texas Competitive Renewable Energy Zones Process
When Sep 06, 2017
from 03:00 PM to 04:00 PM
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10:00 a.m. EDT | 3:00 p.m. CEST

Check your local time.
Register Now.
For more information.

The Clean Energy Solutions Center, in partnership with the United States Agency for International Development (USAID), the National Renewable Energy Laboratory (NREL), and the Electric Reliability Council of Texas (ERCOT), is hosting a no-cost, webinar-based training on Transmission Planning for A High Renewable Energy Future: Lessons from the Texas Competitive Renewable Energy Zones Process. This webinar is part of the GreeningTheGrid.org toolkit, a USAID and NREL collaboration designed to support countries in integrating renewable energy into the power system.

In 2005, the Texas power system developed a new approach to transmission system planning based on the designation of Competitive Renewable Energy Zones (CREZ). Designed to direct transmission expansion to the state's most productive wind energy resources, the implementation of CREZ has helped to enable the addition of more than 18 gigawatts of wind energy generation capacity to Texas's power system while overcoming technical issues such as curtailment and transmission congestion. This novel approach provides a model for integrating the transmission and renewable energy generation planning processes.

This webinar will provide an overview of the CREZ process, including the regulatory, procedural, and technical considerations that were critical to its successful implementation in Texas. The webinar will also introduce a Renewable Energy Zones "Toolkit" developed through a USAID and NREL partnership and intended to guide other power systems in adapting elements of the CREZ approach to their own power system planning processes.

New Resource - Renewable Energy Zone (REZ) Transmission Planning Process

Achieving clean energy goals may require new investments in transmission, especially if planners anticipate economic growth and increased demand for electricity. The renewable energy zone (REZ) transmission planning process can help policymakers ensure their infrastructure investments achieve national goals in the most economical manner.

Policymakers, planners, and system operators around the world have used variations of the REZ process to chart the expansion of their transmission networks and overcome the barriers of traditional transmission planning. This guidebook seeks to help power system planners, key decision makers, and stakeholders understand and use the REZ process to integrate transmission expansion planning and renewable energy generation planning. The guidebook presents a general organizational structure and details each step of the REZ process.

Click here to view the guidebook.

Visit the Planning for Grid Integration Topic Page for more resources. 

New Resource - Understanding the Impact of Distributed Photovoltaic Adoption on Utility Revenues and Retail Electricity Tariffs in Thailand

Utilities worldwide are concerned about the financial impact of increasing distributed PV adoption among their retail customers. This report analyzes the impact of distributed PV deployment on distribution utility revenues and retail electricity tariffs in Thailand. It provides policymakers, utilities, and other energy practitioners a real-world example of how distributed PV affects certain stakeholders.

This report analyzes the impact of distributed PV deployment on distribution utility revenues and retail electricity tariffs in Thailand. It provides policymakers, utilities, and other energy practitioners a real-world example of how distributed PV affects certain stakeholders.  

Click here to access the full report.

Visit the Distributed Generation Topic Page for additional resources and case studies.

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