return icon

Renewable energy: Rise in global wind speed to boost green power

Rising winds could increase energy production from turbines by a third over the next decade.



A new study suggests that global wind speeds have increased substantially since 2010 after decades of decline.

Scientists say they believe that changes in the patterns of ocean and atmospheric circulation are behind the rise.

The researchers say the discovery is very good news for the wind energy industry.

They believe that speedier winds will see the energy produced by a single turbine grow by about 37%.

From the 1980s, scientists detected a marked decrease in the speed of winds around the world. 

Termed "terrestrial stilling", the decline was large enough that had it continued until the end of this century, global wind speed would have declined by 21%.

The authors of the study say this would have halved the amount of power available from the wind industry.

Scientists were uncertain as to what was causing the decline. One theory argued that the greening of the Earth or more urbanisation was increasing surface roughness and curbing wind speeds.

But this new study suggests that by itself, the roughness idea is not enough to explain the changes.

By looking at data from 9,000 ground weather stations combined with statistical models, the researchers show that over the years since 2010, winds have picked up "significantly" around the globe.

The rate of speed increase is in fact three times greater than the rate at which the winds were declining before 2010.

The authors believe that the reason for the increase is more to do with changes in the ocean and atmospheric circulation patterns and not down to surface roughness alone.

"By ocean atmospheric circulation, we mean heating of the Earth's surface which creates pressure gradients and thereby wind," said co-author Dr Adrian Chappell from the University of Cardiff, UK.

"Changes in these circulations have changed wind speeds. The alternative and/or contributing cause of change in wind speed is due to change in land surface roughness. It is very unlikely that change in roughness alone has caused the change in wind speeds. It remains plausible that the combination of large-scale circulation and change in roughness has caused the change in wind speed."

The finding helps explain an increase in the capacity factor of the US wind fleet which has risen at a rate of 7% per decade.

It had been assumed that technological innovation was behind the improvement but according to the new study, 50% of the rise is due to increasing wind speeds.

Overall, the finding is "good news" for the wind energy industry, the authors say.

"The reversal in global terrestrial stilling bodes well for the expansion of large-scale and efficient wind power generation systems in these mid-latitude countries in the near future," Dr Chappell said.

If the trends persist for the next decade, wind power from a single turbine would rise to 3.3 million kilowatt hours in 2024, an overall increase of 37%.

The authors believe the increase in wind speeds will decline again in future but will persist for at least the next 10 years.

The study has been published in the journal Nature Climate Change. BBC


Revoking licenses of petrol distributors will not affect fuel supply

Although petrol distributors are allowed to buy products from more than one wholesaler, when supply interruptions occur, the distributor system has often not ensured a sufficient supply for filling stations.

Beauty contests heat up in first days of the Year of the Cat

Pham Kim Dung, a representative of the company that founded Hoa hau Quoc gia Vietnam (Miss National Vietnam) beauty pageant, said beauty queens need to make every effort to prove their talent as so many contests now exist.

Vietnam looks forward to catfish orders from China, the US

In January 2023, catfish exports brought $106.8 million to Vietnam, a 50 percent fall compared with the same period last year. However, Vietnamese farmers and exporters now see positive signs from the US and China.

High rates hurting businesses, hamper economic recovery

High interest rates have been hurting businesses' ability to invest in ramping up production capacity, said industry insiders and economists.

Chinese black-credit websites cheating Vietnamese out of money

Many websites have been created to trick people into transferring money to them.

Record number of Vietnamese runners qualify for Boston 2023

Nine of them are from Hanoi and HCM City, the two largest running communities in Vietnam, while the other is Dao Han, who currently lives in Florida, the US.

Vietnam’s transport sector seeking recovery and reboot

While making good recovery during 2022, Vietnam’s transport sector is betting on new policies and plans to increase private investment to obtain its ambitious goals.

Strong FDI flow into Vietnam's electronics industry to boost exports

The increased inflow of investment from foreign investors into Vietnam’s electronics industry is expected to create a positive outlook for the country’s exports of computers, electronic products, and components in the time to come.

Vietnamese professor honoured with prestigious IUPAC award

Vietnamese Professor Nguyen Thi Kim Thanh has received “the Distinguished Women in Chemistry or Chemical Engineering Awards” by the International Union of Pure and Applied Chemistry (IUPAC) in 2023.

Hanoi targets GRDP per capita of 36,000 USD by 2045

Hanoi is set to become a globally-connected city with high living standards and quality of life, according to a new plan that aims to raise the Gross Regional Domestic Product (GRDP) per capita to 36,000 USD by 2045.

Vietnamese security expert honored by US wireless carrier

Ngo Minh Hieu, a white-hat hacker, has been honored by many US technology corporations.

Many real estate firms declared bankruptcy in 2022

The number of real estate firms declaring bankruptcy and dissolution in 2022 increased by 38.7 percent over 2021, according to the Ministry of Construction’s (MOC) recent report.

Electricity prices must be reasonable: PM

Prime Minister Pham Minh Chinh recently chaired a conference on domestic consumption and exports in 2023.

Vietnamese aviation market predicted to fully recover by year-end

The Vietnamese aviation market is forecast to fully recover by the end of this year, according to a global outlook for the aviation industry released by the International Air Transport Association (IATA) recently.

Many Japanese firms plan expansion in Vietnam: JETRO poll

Sixty percent of Japanese investors in Asia-Pacific polled in a 2022 survey by the Japan External Trade Organization (JETRO) said they plan to expand operations in Vietnam within the next two years.