Energy, Heating & Cooling Expertise for Large Buildings and Estates

Get the right support to plan, fund, design, deliver and improve your energy systems

Our Services

Choose the expertise you need for your low-carbon energy infrastructure, or work with HI Group across the full project lifecycle.

Consultancy & Planning

  • Estate & Sustainability Strategy
  • Surveys & Technical Assessment
  • Technology Feasibility

Create a clear, evidence-based decarbonisation plan. We assess your current position, identify opportunities and develop practical strategies that align energy, carbon and commercial priorities.

Finance

  • Business Cases & Investment
  • Funding Strategy
  • Commercial Models

Build the financial case for your energy projects. We assess funding and commercial options, support grant applications and help develop investment plans that make projects financially viable.

Design Services

  • Multidisciplinary Design across RIBA Stages 2-4
  • Technology Design
  • Engineering & Modelling

Turn your plans into technically robust, deliverable solutions. Our design team provides the surveys, modelling, engineering and technical detail needed to take energy, heating and cooling projects forward.

Project Delivery

  • Client-Side Project Management
  • Procurement
  • Commissioning & Handover

Move projects into delivery with experienced oversight. We support procurement, project management, construction and commissioning to keep delivery coordinated and aligned with your technical and commercial requirements.

Operation & Optimisation

  • Monitoring & Verification
  • Optimisation
  • System Performance & Recovery

Keep your energy systems performing as intended. We find opportunities to improve performance, resolve issues and get more value from your existing infrastructure.

How HI Group can help

Whatever stage your low-carbon energy project is at, we can provide the expertise you need to move it forward.

You need a clear plan for decarbonisation

Know what you need to achieve, but unsure where to start? We can assess your current position, identify viable opportunities and build a practical plan around your estate and priorities.

You’re ready to move into detailed design

Feasibility and funding are in place - now you need the technical detail to progress. Our design team can develop your plans into a coordinated, deliverable solution.

You don’t have a clear view of system performance

Without the right data, it’s difficult to know whether your energy systems are delivering as intended. We provide the monitoring and insight you need to understand your systems and make informed decisions.

Your energy systems aren’t working as they should

If you know something isn’t right, we can investigate the cause, identify opportunities for improvement and help you get more value from your infrastructure.

A holistic, multidisciplinary approach to energy projects

Improving low-carbon energy infrastructure involves technical, commercial and operational decisions, often across complex estates with unique constraints.

HI Group brings the right disciplines together. Our team combines engineering, energy, commercial and delivery experience to understand what’s viable within your budget and develop an approach suited to the estate.

We’re technology agnostic, so our recommendations are shaped around your objectives, existing infrastructure and operational needs.

Our Work in Practice

Decarbonisation, measured

As our portfolio grows, as does the contribution of our work to lower-carbon, more efficient energy systems.

5,500
kWp

Total capacity of Solar PV installed

6750
kW

Total capacity of Heat Pumps installed

14.5m
kWh

Total energy offset

2,710
TCO2e

Total carbon saved

Over
£40m

Invested in decarbonisation

FAQs

Start by understanding current energy use, infrastructure and operational needs. This creates a baseline for identifying and prioritising viable improvements before progressing to funding, detailed design, and delivery. Once systems are operational, monitoring and optimisation help maintain performance over time.

It brings together the technical and commercial expertise needed to turn carbon reduction targets into action. This can include strategy and feasibility, funding, design, project delivery or ongoing optimisation, depending on where additional expertise is needed.

The right solution depends on the building, its energy demands and how it operates. Each technology should be assessed for technical suitability, potential carbon savings, cost and compatibility with existing energy infrastructure. In many cases, the best approach will combine several technologies.

It should establish the technical and financial viability of the proposed investment. Key considerations include capital and operating costs, whole-life value, expected energy and carbon savings, project risks and the most appropriate funding route, giving decision-makers a clear basis for investment.

Start with performance data to understand where and when issues arise, then investigate how the system is designed, controlled and operated. Site investigation and testing can identify root causes such as control conflicts, helping establish what needs to change to improve performance.

Let's Drive Your Sustainability Agenda Together

Contact HI Group to transform your facility’s energy management. Together, we can deliver measurable financial and carbon savings while ensuring your renewable systems achieve their full potential.

Start Your Journey