Marine Energy Analysis
Marine VIG ROI Engine
Calculate HVAC energy savings, simple payback, and carbon reduction for THERMGLASS VIG on vessel bridge and cabin glazing. Route-based ΔT profiles per ASHRAE HVAC Applications 2023 §11 and DNV Rules for Ships.
Vessel Inputs
Typical global tramp or cruise route — balanced heating/cooling · Effective ΔT: 15.3°C
Enter custom area or select a vessel preset above
Standalone VIG typical: 0.55–0.65 W/m²·K · Hybrid VIG: 0.35–0.45
$/kWh or €/kWh shore power / generator
Typical VIG premium over standard marine double-pane: $280–$420/m²
Results
ASHRAE / DNVAnnual Energy Savings
Payback & Investment
Net Present Value
NPV = discounted cumulative savings minus incremental cost. Positive = net financial benefit over the vessel lifecycle.
Carbon Impact
Steady-state conduction model per ASHRAE HVAC Applications 2023 §11 and DNV Rules for Ships Pt.4 Ch.6. Effective ΔT is weighted by heating/cooling fraction for the selected route. HFO/MGO fuel costs converted to effective $/kWh at generator efficiency. Covers conduction only — actual savings may be higher due to reduced solar gain and condensation prevention.
3-page branded report — cover, results, and methodology
Ready to specify?
Use the Marine Configurator to generate a detailed thermal specification, IMO EEDI compliance report, and pricing estimate for your vessel glazing project.