Support for InfrastructureUSA.org
has been provided by these organizations and individuals:

John Hennessy III,
P.E.

WESTERN WIND AND SOLAR INTEGRATION STUDY

Posted by Content Coordinator on Thursday, May 27th, 2010

NATIONAL RENEWABLE ENERGY LABORATORY OF THE US DEPARTMENT OF ENERGY

INTRODUCTION

WESTCONNECT
WestConnect is a group of transmission providers that are working collaboratively on initiatives to improve wholesale electricity markets in the West. Participants include Arizona Public Service, El Paso Electric Co., NV Energy, Public Service of New Mexico, Salt River Project, Tri-State Generation and Transmission Cooperative, Tucson Electric Power, Western Area Power Administration, and Xcel Energy.

The focus of the Western Wind and Solar Integration Study (WWSIS) is to investigate the operational impact of up to 35% energy penetration of wind, photovoltaics (PVs), and concentrating solar power (CSP) on the power system operated by the WestConnect group of utilities in Arizona, Colorado, Nevada, New Mexico, and Wyoming. WWSIS was conducted over two and a half years by a team of researchers in wind power, solar power, and utility operations, with oversight from technical experts in these fields. This report discusses the development of data inputs, the design of scenarios to address key issues, and the analysis and sensitivity studies that were conducted to answer questions about the integration of wind and solar power on the grid.

screen-shot-2010-05-27-at-50905-pm

KEY FINDINGS

The technical analysis performed in this study shows that it is operationally feasible for WestConnect to accommodate 30% wind and 5% solar energy penetration, assuming the following changes to current practice are made over time:

  • Substantially increase balancing area cooperation or consolidation, either real or virtual
  • Increase the use of sub‐hourly scheduling for generation and interchanges
  • Increase utilization of existing transmission
  • Enable coordinated commitment and economic dispatch of generation over wider regions
  • Incorporate state of the art (S‐o‐A) wind and solar forecasts in unit commitment and grid operations
  • Increase the flexibility of dispatchable generation where appropriate (e.g., reduce minimum generation levels, increase ramp rates, reduce start/stop costs or minimum down time)
  • Commit additional operating reserves as appropriate
  • Build transmission as appropriate to accommodate renewable energy expansion
  • Target new or existing demand response or load participation programs to accommodate increased variability and uncertainty
  • Require wind plants to provide down reserves

Download executive summary (PDF): Western Wind and Solar Integration Study

Download full version (PDF): Western Wind and Solar Integration Study


screen-shot-2010-05-27-at-51158-pm

screen-shot-2010-05-27-at-51215-pm

Tags: , , , , , , , , , , , , , , ,

Comments are closed.

Follow InfraUSA on Twitter Facebook YouTube Flickr

CATEGORIES


Show us your infra! Show us your infra!

Video, stills and tales. Share images of the Infra in your community that demands attention. Post your ideas about national Infra issues. Go ahead. Show Us Your Infra!  Upload and instantly share your message.

Polls Polls

Is the administration moving fast enough on Infra issues? Are Americans prepared to pay more taxes for repairs? Should job creation be the guiding determination? Vote now!

Views

What do the experts think? This is where the nation's public policy organizations, trade associations and think tanks weigh in with analysis on Infra issues. Tell them what you think.  Ask questions.  Share a different view.

Blog

The Infra Blog offers cutting edge perspective on a broad spectrum of Infra topics. Frequent updates and provocative posts highlight hot button topics -- essential ingredients of a national Infra dialogue.