The World's #1 Renewable Energy Network for News, Information, and Companies.
Untitled Document

Coordination is California's Least Cost Path to a Clean Energy Future

A new study for California’s largest investor-owned and public utilities is the latest in a series of influential reports identifying the range of measures needed to add large amounts of renewable power to the grid quickly.

The analysis, Investigating a Higher Renewables Portfolio Standard in California, conducted by the consulting firm Energy and Environmental Economics, Inc. (E3), focuses on the challenges to a single state, California, and affirms what many have been saying for a long time: cost-effective renewable integration requires coordination among states, diverse geographies and technologies and access to new markets and market tools.

Previous studies such as the Western Governors’ Association report Meeting Renewable Energy Targets in the West at Least Cost: The Integration Challenge; the Western Grid Group’s Western Grid 2050; NREL’s Renewable Electricity Futures Report; Energy Foundation’s  America’s Power Plan; and, NREL’s Western Wind and Solar Integration Study to name a few have plowed similar ground from a regional and national perspective and all have found similar tactics are required to make renewable integration happen on a grand scale.

These include:

  • Regional planning
  • Better coordination, utilization and operation of the existing grid
  • Strategic transmission upgrades
  • Faster scheduling of generation onto the grid
  • Energy Imbalance Markets based on rapid (five minute) resource dispatch
  • Diverse portfolios of renewable technologies
  • Exploiting geographic diversity and the inherent uncorrelated variability it provides
  • Repurposing gas generation for flexibility and repowering gas plants with fast ramping technologies
  • Improved resource and weather forecasting
  • Reserve management
  • Taking advantage of electricity storage
  • Distribution- side energy efficiency and demand response tools

E3 touches upon the need for combining these measures in California with the largest portion (a third) of all western electricity demand, and which has designs on even deeper penetrations of renewable energy than have ever been added to a single system before. California is expected to meet its goal of providing 33% of its electricity energy from renewable power sources by 2020. The E3 study explores what the next likely steps may be if California shoots for 40-50 percent of its load being met by renewable generation by 2030. But California, like many states, has suffered from a sort of renewable xenophobia, the determination to meet all renewable generation development and integration needs from sources largely within its own borders. This report shows that going it alone will cost more, be technically much more difficult, and be likely to create overgeneration challenges when renewable power plants — mainly solar — cause a glut of generation into the system when demand for power is low.

In contrast, taking a more coordinated approach helps avoid or softens many of these problems and saves money; lots of it, while increasing the reliability of the grid and rapidly ramping down greenhouse gases and conventional air pollution. This is because coordination improves the efficiency of the grid, provides access to cheaper geographically diverse renewable resources that complement California’s own, and allows California to share (and sell) reserves and surplus renewable generation with neighboring balancing authorities and states. In combination these benefits mean fewer gas-fired power plants will be needed for balancing renewables and providing peaking power. The gas plants we will operate in the future will start and reach full power rapidly, use less fuel, emit less pollution and will be used principally to back up renewable power sources.

The E3 report takes a poke at quantifying the cost of renewable integration at 40 and 50 percent levels using a go-it-alone approach (9-23 percent increases), and this is likely to get most of the attention. But this analysis will likely be misinterpreted and misunderstood. Some may say the report shows renewable integration will come at too steep a price. But the report repeatedly points out that the costs will be lower if a coordinated and diversified approach is used. Utility rates will increase no matter what between now and 2030, making the cost of renewable power, which comes with no fuel cost volatility, a safer economic as well as environmental bet.

This article was originally published on NRDC Switchboard and was republished with permission.

Lead image: Empty road via Shutterstock

Untitled Document

RELATED ARTICLES

Solar power growth impacting UK electricity sector

Diarmaid Williams

Q2 of 2015 saw a large increase in the generation of electricity from solar PV in the UK, with the growth having a significant impact on electricity market prices and other supply factors.

PACE Finance Opening Doors for C&I Solar In California

Susan Kraemer, Correspondent With its excellent renewable policy, California leads the nation in solar. Over the years both the Renewable Portfolio Standard and the California Solar Initiative drove utility scale and residential solar deployment. But w...

US Clean Power Plan Could Include Carbon Trading

Mark Drajem, Bloomberg Some businesses that back President Barack Obama’s plan to curb greenhouse gases are making a late lobbying push to add an element similar to a cap-and-trade program. With the administration set this week or next to unveil ...

Why the Future of the Yieldco Is at Risk

Haresh Patel In the past two years, the proliferation of YieldCos, and their ability to open new sources of capital for renewable energy projects, has captured the attention of the energy industry. While a YieldCo’s potential to catalyz...
Carl Zichella is the director for Western transmission for NRDC. He is the organization’s lead staff for western U.S. renewable energy transmission siting and serves on a nationwide team working on renewable energy development issues. In this role...

CURRENT MAGAZINE ISSUE

Volume 18, Issue 4
1507REW_C11

STAY CONNECTED

To register for our free
e-Newsletters, subscribe today:

SOCIAL ACTIVITY

Tweet the Editors! @megcichon @jennrunyon

FEATURED PARTNERS



EVENTS

Doing Business in South Africa – in partnership with GWEC, the Glob...

Wind Energy in South Africa has been expanding dramatically, growing fro...

Grid-connected and Off-grid Photovoltaics

This training covers all aspects of planning, installation, maintenance,...

2015 Green Energy Expo

Stop by and visit Canadian Solar at the Green Energy Expo in Mexico City!

COMPANY BLOGS

A Networking Story

When you’re at a networking event and you meet someone who works i...

Fort Collins Residents Help City Reach Climate Targets While Saving...

Fort Collins resident Norman Illsley, 90, is making a statement. He purc...

6 Tips For Finding Great Leads

Embrace and cultivate all of the empowering qualities of a sa...

NEWSLETTERS

Renewable Energy: Subscribe Now

Solar Energy: Subscribe Now

Wind Energy: Subscribe Now

Geothermal Energy: Subscribe Now

Bioenergy: Subscribe Now  

 

FEATURED PARTNERS