Climate change may overload US electrical grid

2017-02-07 20:34


Multimedia   ·   User Galleries   ·   News in Pictures Send us your pictures  ·  Send us your stories

Miami - Researchers say as the planet warms due to climate change and hot days become more common, the US electrical grid could be unable to meet peak energy needs by century's end.

The cost to upgrade the US electrical grid so it could cope with peak demands may be on the order of $180bn, said the report in the Proceedings of the National Academy of Sciences.

"As the electricity grid is built to endure maximum load, our findings have significant implications for the construction of costly peak generating capacity," said the study.

Previous research has focused on how needs for electricity would grow due to climate change, mainly because people would use more electricity to keep themselves cool.

The current study also factors in the effect of ever-more frequent and intense heat when it comes to peak electricity demand, or the maximum amount of electricity a given area would need at one time.

Transmission investments

Some areas will likely use less electricity, for instance in the northwestern United States, where cold days will become less intense.

But other areas, like the southern United States, "could experience an increased number of spikes in electricity use as hot days become more prevalent," said the study.

These jumps in peak electricity demands "may require substantial investments by US electricity grids into peak electricity generating capacity."

Much of the costs to upgrade the grid would involve capacity, storage and transmission investments - not simply the cost of generating electricity.

If the world continues to burn fossil fuels at the current rate, without any major effort to mitigate the damage caused by greenhouse gases, the United States' peak electrical needs could rise by as much as 18% and cost around $180bn, said the report.

Looking solely at average daily electricity use, researchers said that would rise by about 2.8% by century's end.

Increasing the use of solar energy to meet demand "could smooth some of peak demand," added the study, cautioning however that sunny days don't always coincide with hot days.

The United States is the second largest producer and consumer of electricity in the world after China.

Read more on:    us  |  climate change

Inside News24

Traffic Alerts
There are new stories on the homepage. Click here to see them.


Create Profile

Creating your profile will enable you to submit photos and stories to get published on News24.

Please provide a username for your profile page:

This username must be unique, cannot be edited and will be used in the URL to your profile page across the entire network.