Engineering Case Study
From energy audit to $1.26M in value.
Thermolio conducted a rigorous engineering audit on a 370-unit residential building operating at a $435k annual energy deficit, turning it into a high-yield asset: a 1.35-year payback with incentives, $1.26M of 20-year NPV, and 512 tonnes of CO₂ avoided per year.
Engineering methodology
An energy audit is a structured, engineering-grade investigation — not a walkthrough. Over 6–8 weeks: a site visit and equipment inventory, 12 months of utility-bill and tariff data, an 8,760-hour thermal simulation validated to within ±5% of actual bills, retrofit scenario modeling, and a final ranked action plan with a full financial model.
Baseline analysis
The building consumes 24,180 GJ/year across a 49,224 m² footprint at a total energy cost of $435,425. Space heating, fresh-air heating, and domestic hot water are the largest end-uses — the targets with the most recoverable capital.
Scenario modeling
We built a digital twin to stress-test four retrofit pathways. The recommended scenario — a 25-well ground-source geothermal field with Hydro-Québec dual-energy pricing and an energy-recovery ventilator — delivers $1.26M in 20-year NPV and a 1.35-year payback while cutting GHG emissions 61%.
Grant strategy
We architect the project to secure the capital stack before construction: Transition Énergétique Québec ($673,690 — 66%), Hydro-Québec ($234,277 — 23%), and Énergir ($108,864 — 11%) — and we handle the filings.
Request a preliminary review
Engineering audits apply to facilities spending over $50k/year on energy. Request a brief, no-commitment review to uncover the hidden capital in your mechanical infrastructure.
Book a call with our team · technology@thermolio.com