13
Dec

Cost Effective Ways To Power Grid

A well-designed combination of wind power, solar power and storage in batteries and fuel cells would nearly always exceed electricity demands while keeping costs low, the scientists found.

“These results break the conventional wisdom that renewable energy is too unreliable and expensive,” said co-author Willett Kempton, professor in the School of Marine Science and Policy in UD’s College of Earth, Ocean, and Environment.

“The key is to get the right combination of electricity sources and storage—which we did by an exhaustive search—and to calculate costs correctly.”

The authors developed a computer model to consider 28 billion combinations of renewable energy sources and storage mechanisms, each tested over four years of historical hourly weather data and electricity demands. The model incorporated data from within a large regional grid called PJM Interconnection, which includes 13 states from New Jersey to Illinois and represents one-fifth of the United States’ total electric grid.

One of several new findings is that a very large electric system can be run almost entirely on renewable energy.

In this study, reliability was achieved by: expanding the geographic area of renewable generation, using diverse sources, employing storage systems, and for the last few percent of the time, burning fossil fuels as a backup.

During the hours when there was not enough renewable electricity to meet power needs, the model drew from storage and, on the rare hours with neither renewable electricity or stored power, then fossil fuel.

When there was more renewable energy generated than needed, the model would first fill storage, use the remaining to replace natural gas for heating homes and businesses and only after those, let the excess go to waste.

The study used estimates of technology costs in 2030 without government subsidies, comparing them to costs of fossil fuel generation in wide use today. The cost of fossil fuels includes both the fuel cost itself and the documented external costs such as human health effects caused by power plant air pollution.

The projected capital costs for wind and solar in 2030 are about half of today’s wind and solar costs, whereas maintenance costs are projected to be approximately the same.

 

Source and Read More  

If you want to know more about this and other topics directly from end users of energy storage technologies join us at one of these annual events: The Energy Storage World Forum (Grid Scale Applications), or The Residential Energy Storage Forum, or one of our Training Courses.

LATEST ARTICLES

Virtual Power Plants: Addressing Platform Integration, Customer Education & Business Models

Distributed energy resources (DERs) have proliferated due to technological advancements, reducing costs and the increasing pressure to reduce overall carbon emissions. While electrical grids around the world become more decentralized, new challenges emerge as the increased penetration of renewables threatens reliability and stability of supply. One way of combating this issue is by aggregating independent…

Read More

How To Build A Successful Storage Project (FREQCON Perspective)

In 2018, I got an inquiry from a customer regarding a peak shaving system for an industrial project in the north of Germany. Along with the offer I sent for his requested service, I tried to sell the black start capability as well within the solution. The customer’s reply was simple, is it free of…

Read More

★REVIEWS

“Probably the most interactive and well organized storage event on the calendar.”

★★★★★

Sales Director, S&C

“Well-designed, organized, friendly staff– and various international contacts we hope to do business with soon.”

★★★★★

Marketing Manager, Gildemeister

“High scientific content, well targeted, perfect organization.”

★★★★★

Expert Technical & Governance, Elia

Excellent networking event. The sponsorship was well worth it.”

★★★★★

Manager, ATL

View More

x