ArchOptTechnologies
🔑 EPCalibration License

Get EPCalibrationCalibration for EnergyPlus models

Automatic calibration of EnergyPlus building models against measured data, with HA-NSGA-II multi-objective optimization, ASHRAE Guideline 14 metrics (RMSE, NMBE, CV(RMSE)) and interactive Pareto exploration. Choose Monthly for flexibility or Yearly to save $40. All prices are in USD, and each license activates on one machine.

EPCalibration · License plans

Choose your plan

Both plans include the full application. Cancel anytime; your key works until the end of the paid period.

Please tick the box to accept the Licence Agreement before you continue to checkout.
Monthly
$20/month
billed monthly
FlexibilityCancel anytime
Full access to all EPCalibration features
Free updates while subscribed
Email support included
Buy EPCalibration Monthly

Secure checkout · License key by email

Best value
Yearly
$200/year
one payment for 12 months
You save$40 compared with 12 monthly payments
Full access to all EPCalibration features
Free updates for the full year
Priority email support
Buy EPCalibration Yearly

Secure checkout · License key by email

Price summary

PlanBillingPriceEquivalent per month
MonthlyEvery month$20 / month$20.00
YearlyOnce per year$200 / year≈ $16.67

Monthly figures are shown for comparison only.

🧪 What EPCalibration does

HA-NSGA-II calibration with Halton seeding and evaluation caching, ASHRAE Guideline 14 metrics with a time-period filter, one-click IDF tagging, an interactive Pareto explorer, single- or multi-zone calibration, and optional two-stage refinement.

🏢 Multi-seat or invoice payment

Need several machines, a purchase order, or an invoice? Email architecture.optimization@gmail.com with the number of seats and the plan you need, and we will prepare a quotation.

1Choose a planClick "Buy EPCalibration Monthly" or "Buy EPCalibration Yearly" and pay securely through Gumroad.
2Receive your keyYour license key is emailed to the address used at checkout, normally right after payment.
3ActivateEnter the key once on first run. It activates on that machine for the length of your plan.
Included in every EPCalibration license
Full application: HA-NSGA-II calibration and Guideline 14 metrics
1 machine activation per license
License key delivered by email
Updates during the license period
Email support
Free installer to test before buying
Common questions
A Windows PC and an EnergyPlus installation (free from energyplus.net). EPCalibration works with your existing IDF models and weather files, no coding required.
EPCalibration shows a renewal screen when your license expires. Renew your plan and email us, and we will send a new key to reactivate.
Yes. Cancel your monthly subscription on Gumroad, then subscribe to the yearly plan. Email us if you would like help moving your key over.
Each license is bound to a single machine. If you change computers, contact us and we will reset your license for free. For several machines, ask us for a multi-seat quotation.
Your key is emailed right after Gumroad confirms your payment. In rare cases it may take a few hours; if so, email us and we will send it manually.
No. EPCalibration is a standalone tool with its own license. EnergyFront builds the model, EPCalibration calibrates it against measured data, and PareVia optimizes the design. They work well together, but each runs on its own.
No. All sales are final and fees are not refunded, except where the law requires it (see the Refund Policy). Please confirm that the program runs on your computer before buying: download the free installer and confirm it runs on your machine before buying.