exergenics
RETROFIT ANALYSIS · LIFETIME EMISSIONS

Model Chillers on Cost and Carbon Before the Lock-In

Model up to six chiller options across their expected lifetime: capital, energy, refrigerant leakage, embodied carbon and the cost of offsetting what is left, stress-tested over thousands of simulated futures. Adjust any assumption and every figure updates instantly.

Site & energy
Units
Country
State
Electricity (A$/kWh)
Grid intensity?
Assumptions

Plant & capital basis — what you set once

Equivalent full-load hours / yr?
Embodied carbon (kgCO₂e/kW)?
Real discount rate %?
Cost basis?
Measure savings against?

Monte Carlo forecast — what the simulation varies

Useful life: 20 yrs
Simulations?
Energy price rise %/yr ± std dev?
±
Grid decarbonisation %/yr ± std dev?
±

Chiller options

Name each option after the machine you are actually quoting and enter its real capacity, price and IPLV — those names and figures carry through to the report. The presets are illustrative starting points, not recommendations.

Results

Cumulative cost of ownership

Lifetime emissions by scope

Scope 1 · refrigerant leakage Scope 2 · electricity Scope 3 · embodied + T&D

Marginal abatement cost & simulation statistics

Unlock the full analysis

See the Monte Carlo uncertainty bands, marginal abatement cost and scope 1–3 breakdown here, and receive the full PDF report: every chart, year-by-year tables, summary statistics and recommendations.

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Methodology & default sources
Refrigerant GWPs: IPCC AR5 100-year values, as adopted in Australian NGA Factors and US AIM Act rulemaking.
Leakage defaults follow CIBSE TM65: 2% p.a. for factory-sealed packaged chillers, 4% where refrigerant pipework is field-installed. Adjust per option.
Grid factors: DCCEEW NGA Factors 2025 for Australian states; US EPA eGRID state output rates with EIA average commercial tariffs. All editable.
Embodied emissions heuristic: 75 kgCO₂e per kW cooling capacity, reported under scope 3 with T&D losses.
Carbon credit default: ACCU generic volume-weighted spot price (Clean Energy Regulator, March quarter 2026); US default reflects California cap-and-trade and credible removals.
Monte Carlo draws sample energy price escalation, grid decarbonisation, run hours and carbon price. Every option faces the same drawn future, so each simulation is a like-for-like comparison.
Results are comparative estimates, not guarantees. In delivery engagements, savings are verified via Measurement and Verification to IPMVP Option B.