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Community Ownership & EV Smart Charging

Community Ownership Of Charging

As with any community energy venture, EV charging points can provide real benefit to local areas by keeping investment and revenues within the local economy. The benefits for users and operators of EV charging stations become even more pronounced if a renewable energy asset such as solar PVs or wind turbines are used to power the chargers. By directly powering from an existing asset, operators can charge less and local community users pay less. The electricity also has the benefit of being 100% renewable.

Some community businesses find that the presence of EV charging points also has a positive impact on their income in terms of passing trade e.g. a community café might see increased footfall as customers stop to charge their cars and drop into the café for lunch or a coffee while they wait. An example of this is Comrie Croft, a green destination in Perthshire, which has a 50kW solar PV array which feeds 4 EV fast chargers. An additional 42kWh of battery capacity can store any excess electricity generated by the solar panels and has led to an 85% reduction in their electricity bills.

 

In order to fund the installation of a community EV charging infrastructure, community groups could operate a membership scheme whereby members who contribute towards the costs of installation can have sole or preferential use of the charge points. Non-members could also be provided access but would pay more than members.

 

EV Smart Charging

Smart charging refers to a system where an electric vehicle and a charging device share a data connection, and the charging device shares a data connection with a charging operator. Unlike traditional charging devices that aren’t connected to the cloud, smart charging allows the charging station owner to meet the needs of the grid network and users by shifting EV charging to periods where there is plentiful clean, renewable electricity generation or off-peak periods when electricity demand is low and electricity is cheaper. This additional ‘flexibility’ supports the grid by helping to flatten peak demand, fill load valleys and support real-time balancing of the grids by adjusting their charging levels. The use of EVs as a flexibility resource via smart charging reduces the need for investment in grid reinforcement and carbon-intensive, fossil fuel power plants to balance renewables.

 

The UK government’s Electric Vehicle Smart Charging guide offers a more detailed insight into the benefits and long-term vision for smart charging moving forward.

 

So what is the benefit of smart chargers over traditional ‘dumb’ chargers for community energy projects? For groups in grid constrained areas, smart charging allows communities to take adva

For example, a wind turbine which is regularly curtailed or switched off by the grid because the network cannot cope with the power loads could be kept running by smart technology which co-ordinates EV charging to match curtailment patterns. Rather than being switched off the electricity generated by the turbine would be diverted to EV charging in response to a signal from the grid. This technology is not restricted to EV charging with the same principle being used in smart heating and power. Projects such as The Rousay, Egilsay & Wyre Development Trust (REWDT) and SMILE in Orkney have both incorporated EV smart charging into their projects.

 

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