Vattenfall Energy Bank VW V2G Pilot 2025-2026

Five sources covering the Vattenfall / Energy Bank / Volkswagen bidirectional charging pilot in Sweden, from announcement (May 2025) through launch confirmation (April 2026) and a Vattenfall explainer (September 2026).

Sources:

• Vattenfall press release, 15 April 2026: https://group.vattenfall.com/press-and-media/newsroom/2026/large-scale-pilot-in-sweden-explores-new-role-for-electric-vehicles/
• EV Infrastructure News, 17 April 2026: https://www.evinfrastructurenews.com/v2g/v2g-charging-trial-in-sweden-kicks-off-led-by-vattenfall-volkswagen
• EV Infrastructure News, 28 May 2025: https://www.evinfrastructurenews.com/ev-technology/vattenfall-leads-swedish-bidirectional-charging-trial
• Vattenfall, “The future in Hudiksvall is flexible”, 27 January 2026 (fetched 2026-09-26; saved as Raw/Clippings/The future in Hudiksvall is flexible (Vattenfall 2026).md): https://group.vattenfall.com/press-and-media/newsroom/2026/the-future-in-hudiksvall-is-flexible/
• Vattenfall Fokus, “V2G-projekt gör elnätet mer balanserat” (Swedish, published 29 September 2026; clipped 2026-09-30): https://www.vattenfall.se/fokus/trender-och-innovation/v2g-projekt-gor-elnatet-balanserat/

Pilot overview

One of the world’s largest V2G/V2H pilot projects at time of launch. Key parameters:

Technical and market structure

• V2G and V2H both in scope — the pilot explicitly covers grid discharge (V2G) and household self-supply (V2H)
• Vehicle eligibility: VW ID. models with 77 kWh or larger batteries — all have supported bidirectional charging for the past two years at time of launch
• Software: Energy Bank’s platform optimises and aggregates EV charging across participants (per the 2026 press release and article)
• Market roles: Vattenfall acts as both BRP and BSP (per EV Infrastructure News) — trading aggregated flexibility into the Balancing Market, Nord Pool, or local flexibility markets. This single-actor BRP+BSP structure is notable given the structural barriers to cross-BRP aggregation in Sweden (see Aggregation › Sweden’s BSP/BRP problem)
• Participant compensation: EV owners receive compensation linked to flexibility and energy optimisation provided

Strategic intent

Vattenfall explicitly states the objective of launching a commercial V2H/V2G product following the pilot. The pilot generates insight into “how bidirectional charging can be integrated into the electricity system at scale.”

Magnus Berg (Vattenfall Head of Customer Products & Solutions) framed it as: a battery that can support the grid while also earning revenue could improve the economics of owning an EV and help drive continued electrification.

International context (from May 2025 article)

• UK: Cornwall Insight data shows V2G could reduce EV driver electricity costs by ~70%; DESNZ-funded V2X Innovation Programme with V2VNY trial
• Australia: ARENA recognises bidirectional charging potential for grid balancing and bill reduction
• US: ChargeScape + Leapoffering VPP participating in California wholesale market

Key claims

• The pilot is designed to test aggregated EV batteries in SE3/SE4 trading into the Balancing Market, Nord Pool or local flexibility markets (stated intent, not a result)
• Vattenfall’s stated aim is insight into integrating bidirectional charging at scale; it already sees “great potential” for V2G and V2H (2025 article)
• Vattenfall’s Magnus Berg says a battery that supports the grid and earns revenue could improve EV ownership economics (a statement of belief, not a finding)

September 2026 Vattenfall explainer (Swedish)

A Vattenfall editorial piece in the company’s own “Fokus” channel, quoting Magnus Berg (here titled R&D portfolio manager at Vattenfall; the April 2026 press release gives a different title, see Strategic intent). It is company communication: no results, no figures beyond pilot parameters.

• First-pilot finding (qualitative): Berg says the Hudiksvall pilot showed the technology works and that charging can be steered from grid frequency. The stated limitation was scale: eight vehicles at one and the same customer. No earnings figure is given.
• Why SE3 and SE4: the piece gives two reasons: hydropower sits on the northern rivers and mainly supplies the north, and transfer capacity between price areas is insufficient, so surplus in the north seldom reaches SE3/SE4 (an account of bottlenecks, not a quantified analysis).
• Spot-price dimension: Berg says Vattenfall works “not only against Svk and the balancing markets but a lot against the spot price”: discharge when the spot price is high, charge when it is low. The article frames this as a scale effect: with enough bidirectional chargers the price in the area would flatten, with the highest and lowest peaks “cut”, though the effect would not be visible at 200 customers (his scenarios: 200,000 or two million customers). A forward-looking statement, not a finding.
• Eligible vehicles: participants drive Volkswagen, Volkswagen commercial vehicles, Skoda or CUPRA (a wider brand list than the “VW ID. 77 kWh+” framing in the April sources).
• Cost-pass-through claim: cheaper flexibility would lower Svk’s costs, which would let Svk lower its charge to grid companies, which would in turn lower customers’ costs. Berg’s argument, not a demonstrated chain.
• Fleet framing: about half a million electric cars are on Swedish roads, most of them idle most of the time.
• Not mentioned in this piece: Ambibox, the BRP+BSP role, the April 2026 launch date.

Relevance

Vattenfall describes this as one of the world’s largest bidirectional charging pilots (a press-release claim); no results are published yet. It provides a real-world test of Vattenfall as integrated BRP+BSP, of Energy Bank’s aggregation platform, and of participant compensation, ahead of the commercial V2H/V2G offering Vattenfall plans. See Vehicle-to-Grid › Swedish pilots.