Mitie & G2 Energy

G2 Energy specialises in high-voltage connections for battery energy storage, renewable energy generation and electric vehicle charging, expanding the decarbonisation and energy services we can offer you.

Boosted high-voltage capabilities

G2 Energy company logo - a large dark green capital letter 'G' with a small number '2' in the top right, and 'Energy' vertically next to the 'G2'

By welcoming G2 Energy into our business, Mitie has expanded our high-voltage electrical and civil engineering services. Alongside our acquisitions of Custom Solar, Rock Power Connections and JCA Engineering, this means we can offer a more comprehensive set of engineering services.

We provide complete design and build innovative solutions for sustainable infrastructure projects, with specialist expertise in connecting new energy infrastructure to the grid.

End-to-end energy solutions

As an independent connection provider (ICP), G2 Energy delivers contestable works at voltages up to and including 132kV, and National Grid self-bay works up to 400kV. We operate a fully audited and verified integrated management system, certified by ISOQAR, and is National Electricity Registration Scheme (NERS) Accredited.

Plus, the team can provide end-to-end project delivery, from design and installation to project management and connection to the grid. We also offer proactive and reactive maintenance to deliver comprehensive solutions that meet the specific needs of our customers across multiple industries.

A G2 Energy engineer in a hard hat and high vis jacket, standing in front of industry plant material

The former G2 energy team is a fantastic addition to Mitie. With our existing capabilities in energy, decarbonisation and electrical engineering, our new colleagues will add further services to support our customers with their decarbonisation ambitions.

Matt Brailsford, Managing Director, Solar & Storage Solutions, Mitie

Combined power of Mitie and G2 Energy

Electric Grid connections
We deliver high-voltage electrical and civil engineering services, including grid connections, for a variety of engineering projects across a range of sectors.
Contestable works
The team provides contestable works and grid connections for a variety of electrical power, up to 400kV.
Balance of plant
We have extensive in-house design capabilities within the electrical distribution, transmission and generation sector.
Containerised substations
Our specialists deliver design, build and installation for bespoke container solutions.
Battery energy storage solutions (BESS)
We’ve completed more than 20 fully-operational BESS developments, with roughly 1GWhr of BESS capacity connected to the grid. This represents over 30% of all operational BESS developments in the UK.
Renewable embedded generation
Our team has connected almost 2GW of medium wind turbines and solar PV projects to the grid.
Electric vehicle (EV) charging hubs
Make use of our extensive experience with large-scale centralised EV charging hubs to get the most from your infrastructure.
Operation and maintenance services
We provide a 24/7 emergency control call centre service for immediate assistance throughout the UK.

G2 Energy bolsters our sector expertise

The acquisition in numbers


connections to the National Grid


delivered through G2 Energy connections


of renewable energy connected to the grid


of UK Energy demand connected by G2 Energy

Meet the team

Contact us
Kelvin Ruck - Managing Director, G2 Energy

Kelvin Ruck

Managing Director at G2 Energy