Sustainability Unlimited is an energy and utility consultancy. We take energy and infrastructure projects from first site enquiry to operation, and clients carve out the parts they need rather than taking the whole suite.

Our services are modular. Some clients instruct us for one stage, such as running a statutory pre-application consultation or securing a grid connection. Others hand us a site and a target energisation date and ask us to manage everything in between. Both work.

What we are most often instructed for

Battery storage. Site assessment, consenting strategy, community consultation and grid connection for BESS schemes, standalone and co-located.

Public consultation. Statutory pre-application consultation and wider community engagement for energy and infrastructure projects, including the consultation report that accompanies the application.

Planning and consents. Route selection, application management, environmental impact assessment coordination, and advice on conditions, variations and appeals.

Grid connections and utility infrastructure. Feasibility, optioneering, applications, offer negotiation and management through to energisation.

Alongside those we provide corporate, contracts management, commercial management and dispute support where a project needs it. The stages below are the full lifecycle we work across.