How we work

Services

A clear path from finding waste to proving it's gone — delivered as three connected services you can start at any point.

Onsite Discovery Assessment

What it is A structured site visit where we inspect the major energy loads — refrigeration, HVAC, heating, lighting, power quality — and the way they're actually operated day to day.

What you get A clear picture of where energy is being wasted, separated into operational fixes (no/low cost) and technology opportunities (with suitability flagged).

Why it's different We measure and observe before we recommend. No technology is proposed without a reason it suits your site.

Learn more Arrange an Energy Review
Modern commercial building lobby

Discovery Assessment Report and Roadmap

What it is The Discovery findings written up as a clear Discovery Assessment Report and Roadmap, with every opportunity ranked for action.

What you get A practical assessment report plus each opportunity scored by savings potential, payback, complexity and how the result will be measured.

Why it's different Every line has a measurement route — so savings can be proven, not just promised.

Learn more Request a Sample Report
Discovery Assessment Report and Roadmap

Energy Optimisation as a Service (EOaaS)

What it is Ongoing optimisation as a monthly service rather than a one-off project.

What you get Monthly review, next-best-action recommendations, reporting and savings verification across your estate.

Why it's different Energy performance is treated as a continuous discipline, with someone accountable for keeping it on track.

Learn about EOaaS
Energy optimisation as a service

How the three services connect

From a site visit to decisions your team can act on — and savings you can prove. Where ESOS evidence is required, the report can be reviewed by a qualified ESOS assessor.

Step 01

Discover

We walk the site, inspect the major loads, and identify where money is leaking through equipment, settings and routines.

Step 02

Prioritise

You receive a Discovery Assessment Report and Roadmap: what we found, what to fix first, what it can save, what it depends on, and how to prove the outcome.

Step 03

Optimise

EOaaS keeps the work alive with monthly review, next-best actions, reporting and savings verification across your estate.

Typical engagement timeline

  • Week 1 — Site visit: Discovery Assessment on your first site (or representative site from a multi-site estate).
  • Week 2–3 — Findings summary: Plain-English report of operational fixes and technology opportunities with suitability flags.
  • Week 4–6 — Discovery Assessment Report and Roadmap delivery: Assessment report plus ranked action plan with payback, complexity scores and measurement routes for each line.
  • Ongoing — Verification: Implementation support and savings verification; EOaaS for estates wanting continuous optimisation.

Who it's for

Operators managing energy across multiple sites where waste hides in plain sight.

Hospitality Leisure Manufacturing Commercial property

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Frequently asked questions

A typical audit produces a report. Our Discovery Assessment produces observable findings from how your site actually runs — plant, controls and routines — split into operational fixes and technology opportunities, each with a path to verification.
We assess technologies for suitability at your site. A solution only appears in your Discovery Assessment Report and Roadmap if the measurement says it belongs there — we're not tied to a single product line. See our solutions page for technologies we assess.
Where ESOS compliance evidence is needed, we can have the relevant audit findings and report reviewed by a qualified ESOS assessor. Green Wing's role stays focused on practical site discovery, prioritised savings actions and evidence that can support compliance as well as implementation.
Some operational fixes show results within weeks. Technology interventions depend on suitability, installation and an agreed measurement route. Your Discovery Assessment Report and Roadmap ranks actions by payback so you know what to expect.
Yes. Many clients start with a Discovery Assessment Report and Roadmap. EOaaS suits estates that want ongoing accountability. We will recommend the right entry point for your situation.
Pricing scales to the size of your estate. Arrange an energy review for a tailored quote — we'll recommend EOaaS only where ongoing optimisation makes commercial sense.

Approved Assessors — Groundwork VCSE Energy Efficiency Scheme

Green Wing is an approved assessor for the Groundwork VCSE Energy Efficiency Scheme, supporting eligible voluntary, community and social-enterprise organisations to cut energy use and cost.

Groundwork VCSE Energy Efficiency Scheme

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Next step

See what your estate is really doing with energy.

Arrange an Energy Review

Start with a free 15-minute discovery call.