IN Brief:
- SP Electricity North West has connected a 30MW battery using real-time active network management.
- The system accelerated the connection by three years and avoided reinforcement work.
- The approach delivered £3.2m in savings while restricting the battery by only 0.3%.
SP Electricity North West has connected a 30MW battery to its network using real-time active network management, accelerating the project by three years without conventional reinforcement.
The system delivered £3.2m in savings and allowed the battery to operate with limited restriction. Since installation, the active network management system has activated more than 400 times and has allowed the battery site to use more than 99% of available energy during those periods, with curtailment limited to 0.3%.
Active network management uses real-time data to monitor network limits and automatically manage import power when constraints are detected. The technology allows flexible connections to operate within defined network conditions, reducing the need to wait for full reinforcement where a site can accept controlled limits during peak demand or abnormal network stress.
The North West project shows how distribution networks are beginning to use operational control alongside reinforcement-led planning. It does not remove the need for network investment, but it can change the order in which assets connect. Flexible assets can reach operation earlier where automated control can maintain safe network conditions, while reinforcement can be targeted at areas where limits are structural rather than occasional.
Battery storage is particularly suited to this model because import and export can be controlled in response to network signals. A battery can charge, discharge, or reduce activity within technical limits, provided the control system, commercial arrangements, and operational data remain aligned. That gives distribution system operators more options than they have with inflexible demand or generation.
Europe’s larger storage build-out, including about 11GWh of BESS capacity progressing across Germany, Poland, and Belgium, reflects the scale now entering connection pipelines. SP Electricity North West’s project operates at a smaller scale, but the underlying grid problem is the same: storage capacity contributes only when it can connect, operate, and access markets within physical network constraints.
Connection queues remain one of the most significant barriers to power-system decarbonisation. Renewable generation, storage, industrial electrification, data centres, EV charging, and heat electrification all need network access. Traditional reinforcement can be capital-intensive and slow, particularly where planning, outages, equipment procurement, civil works, and consents affect delivery.
Flexible connection approaches reduce waiting time where the network can be managed dynamically, although they require confidence in automation. Network operators must be certain that control systems respond correctly, telemetry is reliable, limits are enforced, and assets fail safely. Developers also need clarity on likely restriction levels, revenue effects, and whether the connection remains financeable.
The 0.3% restriction figure is technically important because it suggests that earlier connection has not materially constrained normal operation. That balance defines the value of active network management. Excessive curtailment damages project economics, while weak control undermines network security. The value sits in the precision of real-time operation.
Participation in National Grid balancing services adds another layer. A distribution-connected battery must operate within local network constraints while responding to wider system needs. Real-time control can help manage that interaction, but it requires coordination between distribution network operation, market participation, metering, dispatch, and asset controls.
Distribution networks are becoming more active as local generation, flexible load, storage, EV charging, heat pumps, and commercial energy assets connect at scale. Historic networks were designed around predictable flows from central generation through transmission and distribution to passive demand. That model is giving way to local systems that require monitoring, automation, and control at much finer resolution.
SP Electricity North West’s project shows how digital control can unlock capacity where network conditions allow it. Reinforcement remains essential across the system, but where real-time monitoring and automated control can safely manage constraints, connection strategy is no longer limited to waiting for major network upgrades.
