Clean energy stored in electric vehicles to power buildings
- Energy stored in electric vehicles can be used to power large buildings, thanks to ground-breaking research from WMG, University of Warwick
- Researchers discover that by intelligently managing vehicle-to-grid technology, energy from idle vehicle batteries can be pumped back into the grid – and this would improve vehicle battery life by around 10%
- ‘Smart grid’ developed, which calculates how much energy can be taken from electric vehicles without negatively affecting batteries, and actually improving longevity and performance
- Previously thought that vehicle-to-grid tech only acts to degrade battery life – this research shows that it could keep vehicle batteries healthier for longer
Stored energy from electric vehicles (EVs) can be used to power large buildings – creating new possibilities for the future of smart, renewable energy – thanks to ground-breaking battery research from WMG at the University of Warwick.
Dr Kotub Uddin, with colleagues from WMG’s Energy and Electrical Systems group and Jaguar Land Rover, has demonstrated that vehicle-to-grid (V2G) technology can be intelligently utilised to take enough energy from idle EV batteries to be pumped into the grid and power buildings – without damaging the batteries.
This new research into the potentials of V2G shows that it could actually improve vehicle battery life by around ten percent over a year.
For two years, Dr Uddin’s team analysed some of the world’s most advanced lithium ion batteries used in commercially available EVs – and created one of the most accurate battery degradation models existing in the public domain – to predict battery capacity and power fade over time, under various ageing acceleration factors – including temperature, state of charge, current and depth of discharge.
Using this validated degradation model, Dr Uddin developed a ‘smart grid’ algorithm, which intelligently calculates how much energy a vehicle requires to carry out daily journeys, and – crucially – how much energy can be taken from its battery without negatively affecting it, or even improving its longevity.
The researchers used their ‘smart grid’ algorithm to see if they could power WMG’s International Digital Laboratory – a large, busy building which contains a 100-seater auditorium, two electrical laboratories, teaching laboratories, meeting rooms, and houses approximately 360 staff – with energy from EVs parked on the University of Warwick campus.
They worked out that the number of EVs parked on the campus (around 2.1% of cars, in line with the UK market share of EVs) could spare the energy to power this building – and that in doing so, capacity fade in participant EV batteries would be reduced by up to 9.1%, and power fade by up to 12.1% over a year.
It has previously been thought that extracting energy from EVs with V2G technology causes their lithium ion batteries to degrade more rapidly.
Dr Uddin’s group (along with collaborators from Jaguar Land Rover) have proved, however, that battery degradation is more complex – and this complexity, in operation, can be exploited to improve a battery’s lifetime.
Given that battery degradation is dependent on calendar age, capacity throughput, temperature, state of charge, current and depth of discharge, V2G is an effective tool that can be used to optimise a battery’s conditions such that degradation is minimised. Hence, taking excess energy from an idle EV to power the grid actually keeps the battery healthier for longer.
Dr Uddin commented on the research:
“These findings reinforce the attractiveness of vehicle-to-grid technologies to automotive Original Equipment Manufacturers: not only is vehicle-to-grid an effective solution for grid support – and subsequently a tidy revenue stream – but we have shown that there is a real possibility of extending the lifetime of traction batteries in tandem.
“The results are also appealing to policy makers interested in grid decarbonisation.”
The research, ‘On the possibility of extending the lifetime of lithium-ion batteries through optimal V2G facilitated by an integrated vehicle and smart-grid system’ is published in Energy.
The Latest on: Smart grid
- DOE Funds Research on Renewable Energy Resources for Grid Reliabilityon August 2, 2022 at 7:23 am
The Biden-Harris administration, through the U.S. Department of Energy (DOE), is releasing $26 million to fund projects that will demonstrate that America’s electricity grid can reliably run with a ...
- This 100% electric UK housing development will pioneer smart grid technologyon August 1, 2022 at 3:53 pm
UK housing developer St. Modwen will build up to 350 fully electric homes in Birmingham, on a former MINI site.
- Dubai enhances smart grid with first Virtual Power Plant in regionon August 1, 2022 at 3:49 pm
Dubai Electricity and Water Authority (DEWA) has enhanced integration between different energy resources in its smart grid through its Virtual Power Plant (VPP), the first of its kind in the region.
- First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund (NYSEARCA:GRID) Trading 1.4% Higheron July 29, 2022 at 11:12 pm
First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund (NYSEARCA:GRID – Get Rating) shares shot up 1.4% during mid-day trading on Friday . The stock traded as high as $89.50 and last ...
- Dewa enhances its smart grid through its Virtual Power Planton July 29, 2022 at 8:56 am
Dubai Electricity and Water Authority (Dewa) has enhanced integration between different energy resources in its smart grid through its Virtual Power Plant (VPP), the first of its kind in the region.
- DEWA enhances its smart grid and distributed energy resource integration through its virtual power planton July 28, 2022 at 11:48 pm
The aim is to enable the participation of these DERs to support the network operation and maximise their value to the grid operator and end customer by providing grid services such as peak shaving, fr ...
- Invest in unseen infrastructure to support the grid assets we already haveon July 28, 2022 at 8:56 am
Why I believe that federal funding can help us build a cleaner, stronger and smarter grid with the assets we already have.
- First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund (NASDAQ:GRID) Sees Significant Growth in Short Intereston July 28, 2022 at 1:16 am
First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund (NASDAQ:GRID – Get Rating) was the recipient of a large increase in short interest in July. As of July 15th, there was short interest ...
- Technology for Developing a Smart Power Gridon July 26, 2022 at 11:30 am
Smart grids are what every city should aspire toward — and researchers expect this technology to grow 8.7% each year until around 2026.
- Smart Grid IT Systems Market Share 2022, Size, Industry Growth by Global Major Companies Profile, Competitive Landscape and Key Regions 2029on July 12, 2022 at 2:46 am
Smart Grid IT Systems Market Growth 2022-2029 Global Industry research report presents you analysis of market size, share, and growth, trends, and cost structure, statistical and comprehensive ...
via Google News and Bing News