Products
OptiMiser PC
The Windows energy model that runs on the computer in front of you. Measure calculations happen on the machine, so a full audit — model, report, proposal, and signed forms — can be finished with no internet connection.
Offline modeling, on the desktop
OptiMiser PC is the desktop audit tool. The hourly model of the current home and every improvement package runs locally, including calibration to utility bills. Connect when you can to sync projects, weather, prices, and program configuration. Collaboration features sync when a connection is available.
Zeus can collect data and photos offline on a laptop, tablet, or phone. Measure calculations on Zeus go through an API. On PC, those calculations stay on the machine. On a Windows tablet, the wizard and signature capture can finish the visit in one stop: model, report, proposal, and signed forms.
The desktop model
What the desktop model calculates
These are the residential modeling capabilities OptiMiser PC runs on the machine, from program work since 2010.
Accuracy & Consistency
340,000+ audits since 2010 — BESTEST-compliant hourly models that stay true to every input.
Self-Calibrating Audit Wizard
Realtime feedback from 40 continuously updated hourly models — streamline data entry without losing control.
Powerful Utility Analysis
Automated bill calibration — the only tool of its kind for residential auditors.
Custom Reports
50+ dynamic report pages — branded, photo-ready, and editable for your company.
Detailed Financial Analysis
Financing, up to five incentives per measure, O&M costs, SIR, and MIRR in one cash-flow view.
Renewable Systems Support
Full PV and solar thermal modules that combine with efficiency measures in one model.
Advanced Modeling Features
Broad component library — from overhangs and mass walls to CAZ, ventilation, and design loads.
Efficient Sales Tool
Close on-site with optimized packages, branded proposals, form fill, and signature capture.
Desktop or Zeus
Tell us how your crews model today.
PC when the hourly model has to run with no connection. Zeus when the same analysis should follow the job across devices, with measure calculations through the API.