The Smart Utilities’ Guide to V2G

How utilities turn idle EVs into the biggest, most flexible power plant in Europe.

TL;DR

  • EV potential: Europe's EV fleet could reach 114 TWh of battery capacity by 2030, overtaking stationary storage needs by 2040.
  • V2X explained: V2G, V2H, V2B, V2L and V1G each do something different.
  • Three roads: manufacturer partnerships, brand-agnostic integration, or letting car makers lead. Brand-agnostic gets you furthest.
  • Business case: pick your road, pilot with the top EV brands, target the right markets and keep contracts simple.
  • Act now: V2G is maturing alongside EU regulation.

Something brilliant is happening in car parks right now. Electric vehicles are slowly becoming the biggest, most flexible power plant in Europe. Millions of them sit dormant for 22+ hours a day, carrying a hidden reserve of grid capacity that utilities are barely tapping.

  • Europe's EV fleet is on its way to 114 TWh of battery capacity by 2030.
  • EV batteries are set to exceed the total demand for new stationary storage across the EU grid by 2040. Huge grid buffers, with no extra grid hardware.

Yet most utilities still see these vehicles as consumption, not batteries on wheels. That is changing: the technology is robust, customers are buying in, and regulation like the EU Data Act is catching up.

Plugging the X in V2X

TechWhat it does
V2G · Vehicle to gridThe EV acts as a buffer, solving grid issues and responding to market events, mainly through energy arbitrage.
V2H · Vehicle to homeThe EV powers the home during outages.
V2B · Vehicle to buildingThe EV powers commercial buildings, often with settlement between the EV owner and the building manager.
V2L · Vehicle to loadThe EV powers devices directly, like a giant power bank.
V1G · Smart chargingCharging adjusts to grid needs without feeding energy back.

The three winding roads to V2G value

The narrow Italian street

A utility pairs with one EV manufacturer to offer seamless car and energy packages. It is smooth and fast to market, but the product only serves a slice of the market.

The narrow Italian street.
The narrow Italian street.

The all-accessible highway

A brand-agnostic model built to work with any EV. It takes investment in integrations, but maximises reach.

The all-accessible highway.
The all-accessible highway.

The road that travels you

Car makers offer V1G and V2G themselves and start to act as neo-utilities, owning the customer relationship and bypassing traditional suppliers.

The road that travels you.
The road that travels you.

If you ask us, the highway gets you furthest: give people a long list of EVs and turn their downtime into earnings. You don't have to build that highway alone.

Cruising the business case

Step 1: sharpen your position

Which of the three roads are you on?

Step 2: get the pilots rolling

Use the 80/20 rule. Volkswagen Group, Tesla, BMW, Stellantis, Volvo, Audi, Renault and Mercedes cover the majority of the European EV market.

Plug the value in. An EV is a battery on wheels, so the same markets apply:

  • Germany: target intraday markets for up to €215k/MW/year.
  • France: use policy measures and social leasing schemes, and capacity markets for winter security.
  • UK: take part in the balancing mechanism and frequency response, where fast assets earn premium prices.

Keep contracts simple.

TypeHow it worksEase of adoption
Low tariff with bonusVery low fixed charging tariff, for example €0.10/kWh, with bonuses for staying plugged in.Very easy
Hourly rewards with limitsRewards within set periods, but with plug-in and consumption limits that are hard to follow.Confusing
Uncapped low rewardsNo cap on earnings, but low rates such as €0.06/hour.Feels low for drivers worried about battery wear

Unless you are targeting energy professionals, residential customers usually prefer predictable monthly credits over market exposure. Lead with simplicity, then add sophistication over the customer lifecycle.

Step 3: full throttle on rollout

What you absolutely need:

  • Real-time EV connectivity, not just smart meter data
  • An aggregation platform with optimisation, portfolio balancing, trading and billing
  • A customer app that captures charging preferences, your own or a white-label one
  • Inverter connectivity for customers with solar, to get self consumption right
  • A support desk ready for a new wave of questions

If time to market matters, work with a solid platform and focus on customer relationships and innovation. We design ours to keep cost to serve to a minimum.

A few tips so you don't run out of fuel

Grid codes: align with the maturity of each market. The UK, the Netherlands and Germany have established V2G frameworks.

Customer education: address battery degradation concerns early. An in-app Q&A helps a lot.

Technology readiness: Mercedes launches bidirectional charging in 2026 with the electric GLC, but many current EVs need updates or hardware changes for full V2G.

Time to hit the road

Europe's V2G market is consolidating around proven models. The advantage lies in execution speed and positioning, not in waiting for perfect technology. If you want to get into the details, talk to our team.

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