Eddy Grid

Windmolens Groetpolder BV and Zonneweide Groetpolder BV

The customer’s goal was to add a battery alongside the existing wind and solar assets and use their grid connections far more efficiently — balancing the moments when there is “too much sun and too much wind” and steering actively on the energy market to earn a real return on that investment. Crucially, they didn’t want a passive, set-and-forget arrangement: they wanted a partner that actively manages the assets every day, takes risk alongside them, and keeps optimizing.

For years the parks worked with a large energy supplier, but when active battery operation became a concrete plan, that supplier offered battery control mainly for a fixed fee. On paper that looks safe, but in practice a fixed fee gives the controlling party little incentive to push performance further. The upside of active trading isn’t shared, so it isn’t pursued. Battery revenue is also inherently hard to predict: the market moves fast and price peaks are never guaranteed, which made daily, hands-on market management essential rather than optional. The fixed-fee model simply couldn’t deliver the aligned incentives, proactive monitoring, and “short lines, quick action” the board was looking for.

Eddy Grid connected the park to their system via the Withthegrid’s Teleport. Combined with Eddy Grid’s smart algorithms, it turned the Groetpolder into a single, actively managed site.

Together, they make it possible to:

• Trade the combined wind, solar, and battery position actively across the day-ahead, intraday, and imbalance markets, reacting as prices move rather than settling for a fixed outcome.
• Coordinate all three asset types through one grid connection — storing surplus in the battery instead of curtailing it, and using the existing connection far more efficiently.
• Steer dynamically on real conditions: prices, subsidy thresholds, grid limits, and on-site balancing, all weighed automatically.
• Monitor performance continuously and act fast when something deviates — the active, hands-on management the fixed-fee model couldn’t offer.

Zeeman

Growing automation at Zeeman’s distribution center meant the site needed more electrical power. The blocker was regional grid congestion: the grid operator could not simply expand the connection capacity. Instead, the operator offered a Capacity-Limited Contract (CBC), which allows a higher connection value but requires the site to automatically throttle back to its original connection value whenever the grid is overloaded. That throttle-back is only permitted with an advanced EMS and a certified service provider (CSP) in place. Zeeman needed both before it could use the extra capacity at all.

Eddy Grid acted as the certified CSP. Combined with the Teleport, it delivered the automatic throttle-back that the CBC requires: when the grid is overloaded, the system automatically scales the site back to its original connection value, then releases capacity again once the constraint clears. This is what made the CBC viable and unlocked the higher connection capacity for Zeeman.

On top of that, Eddy Grid optimizes the battery commercially (for battery owner EcoPowerCell) by monetizing the battery’s flexibility by storing and returning energy at strategic moments.