
Groundline provides specialist engineering design services to Independent Connection Providers (ICPs) operating across the UK's regulated electricity networks. We understand the ICP environment, the commercial pace, the G81 and DNO/IDNO standards obligations, the network owner interfaces, and what's at stake when pipelines grow faster than internal capacity. Our teams design overhead line and underground cable connections that are technically robust, G81-compliant, and built to be accepted first time by UKPN, NGED, SSEN, and ENWL, across all voltage levels relevant to ICP work, from LV and 11kV through to 33kV and sub-transmission. Whether you need a single design or ongoing overflow support when internal teams hit their limit, we plug in as a seamless extension of your team, without the cost, time, or risk of hiring.
Deliver approval‑ready G81 designs that pass first time — including:
Manage the entire approval interface, not just drawings:
Early‑stage studies to de‑risk projects before commitment:
Targeted support on complex schemes:
We clear the backlog that stops projects closing:
We bring design capability across the full ICP delivery chain — from LV through 33kV, G81-compliant submissions to DNO/IDNO comment resolution, feasibility and Point of Connection studies through to as-built adoption packs. Every job runs through the same controlled, repeatable workflow: scope locked up front, design developed against an agreed brief, and an independent assurance review checking compliance, constructability, and DNO/IDNO acceptance before anything goes out the door. No matter how stretched your pipeline gets, the process stays the same, and so does the quality.
Discuss your needs with one of our experts.
