New grid connections

New grid connections

Regardless of whether your new grid connection is to be made into a distribution network, a private network or the national grid, the first step is to determine if a connection can be made at a commercially-viable price. We understand the various parameters which can affect the viability of a project, based on the potential grid connection solutions. We can effectively estimate where grid capacity is likely to be achievable on a particular area of the network.

Very often the DNO’s offer to complete the contestable works may not be the most cost-effective way to proceed.  The DNO is unlikely to be able to improve on lead times to complete works, due to other scheduled maintenance and upgrade works.  As a Lloyd’s Registered company under the National Electricity Registration Scheme, we are able to quote for the contestable works, often at a much lower cost and with reduced timescales.    

Challenging the DNO

A connection offer is divided into Contestable and Non-Contestable costs. We always challenge these costs and their timescales. The DNOs are not able to provide the economic service a commercial developer requires, but by working with them we can significantly improve on their offer. In many cases the offer can simply be incorrect.  Our in-house team of engineers will check this and then challenge as appropriate.  We can provide our clients with clear and accurate pricing information which enables sound commercial decisions.


EPC Contractor

As a multi-disciplinary principal and main contractor we offer full turnkey solutions for power station development.

We build embedded power plants, typically in the range of 10-50MW. Through working with established contractors who meet our stringent safety and environmental standards, and maximising the use of our own fully skilled and experienced workforce, we deliver our plant builds on programme and budget.

In addition to our core electrical expertise as a main contractor, we also offer our clients civil engineering solutions, including:

  • Site clearance and major earthworks, including re-profiling
  • Decommissioning and diversion of existing services
  • High security provision through fencing, access systems, CCTV, and lighting
  • Services including the provision of mains water, BT ducting and mains gas

Whatever your project technology, we can assist with the supply and installation of the electrical balance of plant, gensets and acoustic enclosures, including their install and commissioning for gas, diesel and CHP systems.

Our expertise in this sector allows us to minimise risks, whilst enhancing cost and programme surety. We add value through every step of the design, pre-construction and construction process through integrating our services into a total construction solution – meaning we consistently achieve ‘right first time’ project delivery.

Balance of Plant

Balance of Plant

Our excellent and established relationships with the major suppliers of long lead time plant items mean we can offer excellent lead times on many of the key items which may affect project viability. Our innovative way of working enables us to create solutions which are acceptable to all parties, including the DNO.

GFC_Design services

Design services

We provide full design and build services for the complete “Balance of Plant” required to connect new electrical infrastructure projects to the grid. Our experienced team of in-house specialists design schemes up to and including 132kV.

  • Feasibility studies
  • Assistance with planning applications
  • Earthing studies
  • Estimating services
  • Design of scheme from DNO Point of Connection to customer site
  • Design of client-side substation and associated works
Battery energy storage

Battery energy storage

Green Frog Connect are committed to providing our skills and services to new and emerging grid infrastructure markets, like battery energy storage and micro-grids.

We are well positioned to offer our EPC expertise for the build out of grid-scale battery energy storage projects in the UK & Ireland.

Find out more about our services

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