Know where your energy goes, before you spend to fix it.
A full audit of your building's energy use — HVAC, lighting, equipment, and envelope — with a clear, prioritized roadmap of what to fix first and what it saves.
Where a typical building's energy actually goes.
Every audit starts by breaking down your real consumption by category — so the recommendations target where the money is, not guesswork.
From a quick walkthrough to an investment-grade study.
Choose the level of detail that matches your decision — a fast opportunity scan, or a bankable report for capital investment.
Walkthrough audit
A fast, low-cost site visit to flag obvious waste and quick wins within days.
Detailed audit
Metered data logging across HVAC, lighting, and equipment for a full consumption breakdown.
Investment-grade audit
Bankable savings estimates and payback modelling, suited for financing or ESCO contracts.
Retro-commissioning
Tune existing HVAC and controls back to design intent — often the fastest payback of all.
From site visit to a prioritized savings roadmap.

Site walkthrough
Our auditors inspect HVAC, lighting, equipment, and the building envelope, and review 12 months of utility bills.
Metering & data logging
Temporary meters and loggers capture real consumption patterns across key circuits and systems.
Analysis & modelling
Consumption data is broken down by category and modelled against efficiency upgrade scenarios.
Report & roadmap
You receive a ranked list of recommendations by payback period, ready to action or finance.
Anywhere the energy bill is bigger than it should be.
A report built to be acted on, not filed away.
| Consumption breakdown | By system: HVAC, lighting, equipment, envelope |
| Recommendations | Ranked by payback period & investment size |
| Savings estimate | Per measure, in kWh and currency |
| Implementation roadmap | Quick wins vs capital projects, phased |
| Financing options | ESCO / performance-contract guidance where relevant |
| Format | Executive summary + full technical report |
Trusted by the people who sign off on the budget.
The report ranked every recommendation by payback period, so we knew exactly what to fund first.
We expected a generic checklist and got a real data-backed breakdown of where our plant was wasting energy.
The retro-commissioning recommendation alone paid for the entire audit within four months.
What building owners ask before booking an audit.
No — walkthroughs and metering are scheduled around your operating hours, and most data logging runs passively in the background.
Estimates are based on metered data from your own site, not industry averages, and detailed/investment-grade audits include modelled payback ranges.
Yes — investment-grade audits are structured to meet the documentation requirements of most ESCO and green-financing programs.
Yes — TerraVolt can design and install the recommended systems directly, or hand the report to your own contractor.
Find out what your building is actually spending on.
Book a walkthrough audit and get a no-obligation summary of where the savings are.

