‘Game changer’ V2G technology could save EV drivers 70% a year

Tamara Birch, senior writer, The Eco Experts
Written By
Published on 30 September 2024
  • V2G could earn EV drivers an average of £320 per year by 2030
  • Those who adopt the V2G service could lower electricity price to 2.4p/kWh 
  • The cost of charging your car is expected to reduce for all EV drivers between 2025 to 2030 and 2030 to 2040
Electric car plugged in to an EV charger at a car park

Technology that enables electric vehicle (EV) drivers to sell their electricity back to the National Grid when demand is high could reduce EV drivers’ wholesale costs by 70% annually, new research from Cornwall Insight has found. 

‘Vehicle-to-Grid’ (V2G) technology could earn EV drivers an average of £320 per year by 2030 and would allow them to both buy and sell electricity to and from the grid, according to the research. 

EV drivers can then maximise savings by buying power during low-demand periods and selling it when prices are high. 

The report from Cornwall Insight was commissioned by Smart Energy GB found that EV drivers who adopt the V2G service could lower wholesale electricity pricing to just 2.4p/kWh compared to 9.8p/kWh paid by those who don’t use smart charging. 

Jacob Briggs, senior consultant, Cornwall Insight, said: “Although V2G technology is still in its early stages, it is poised to become a common feature of domestic charging setups.” 

Briggs described V2G as a potential “game changer” for EV charging, saying that it will allow drivers to charge during off-peak hours for lower rates, and even sell energy back to the grid, significantly reducing their overall costs. 

Additionally, Briggs predicted that V2G technology could generate £250 in gross annual income by 2040, with electricity costs expected to fall to 1.8p/kWh, offering over 60% savings compared to the 5.2p/kWh for non-smart meter charging.

According to its latest data from Cornwall Insight, the cost of charging your car is expected to reduce for all EV drivers between 2025 to 2030 and 2030 to 2040, as technologies are replaced by new renewable energy options. 

Briggs added it is crucial to embrace smart meter charging as this will make the transition to EVs as “smooth and efficient as possible”.

“This not only saves EV drivers money on electricity bills, but also helps take the strain off the grid as EV adoption grows,” Briggs said.

“Helping to accommodate more renewable electricity generation and lower electricity costs and carbon consumption for everyone.” 

Sara Highman, director of corporate affairs, Smart Energy GB, said: “This report clearly shows that, as smart meter-enabled technology becomes more commonplace, the financial and environmental benefits will only continue to grow. 

“As well as enabling innovative reward schemes through smart charging, V2G charging and flexible tariffs, smart meters also ensure that households get accurate bills and greater visibility of their energy usage.” 

Written By

Tamara Birch, senior writer, The Eco Experts

Tamara is a journalist with more than six years experience writing about environmental topics. This includes advising small businesses on cost-effective ways tom become more sustainable, from installing to solar panels and heat pumps and reducing waste. She has used her journalist and research skills to become highly knowledgeable on sustainable initiatives, issues, and solutions to help consumers do their bit for the environment – all while reducing monthly costs. Now, she’s using this experience to advise homeowners on the benefits of installing low-carbon technologies. She is also qualified in offering innovative initiatives to improve sustainability practices in businesses, from advertising to marketing and publishing.

Her passion for sustainability and eco-friendly solutions stems from a long obsession with nature and animals and ensuring they feel looked after. In her free time, Tamara enjoys reading fantasy novels, visiting the gym, and going on long walks in new areas.

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