Smart Curtain ROI Calculator
See the energy payback of motorising and automating curtains on harsh-sun windows. Enter your windows, motor cost and AC use to estimate annual savings, payback years and a 10-year net. Figures are indicative — verify with your own bills.
Your setup
2 harsh windows at a 22% solar-heat cut plus 2 comfort windows. Savings are an estimate of the AC load shaved — verify against your own electricity bills.
Estimated annual saving
₹0
about 371 kWh of cooling avoided per year
Payback
12.1 yrs
upfront ÷ annual saving
Upfront motor cost
₹36,000
₹9,000 × 4
10-year net
₹-6,348
comfort, not cash
Windows automated
4
2 harsh-sun
Cumulative savings vs upfront cost
Read this before you spend
- • These rupee figures are indicative estimates, not a guarantee. Your real saving depends on glazing, orientation, AC efficiency and habits — check your own bills.
- • For many homes the comfort and convenience (scheduled closing before the afternoon peak, no scramble across tall windows) matters more than the payback maths.
- • Outside shading always beats inside curtains. A chajja, external louvre, pergola or even a tree stops heat before it crosses the glass; an interior curtain only handles what already got in.
Plan smart shading with DesignAI
DesignAI maps your orientation and harsh-sun windows, then recommends the right layering, automation and external shading.
Related Guides — Deep-dive reading
Smart Home Curtain Automation: Schedules, Scenes & Sensors (India 2026)
The automation playbook for motorised curtains — the routines, scenes, sensors and geofencing that genuinely add comfort and cut cooling load, separated honestly from the gimmicks.
Window TreatmentsAutomated Window Treatments: The Complete Guide (India 2026)
The umbrella overview of every motorised covering — curtains, roller, zebra and honeycomb shades — the motor and ecosystem stack, the real benefits versus the hype, planning during construction or as a retrofit, honest costs, and how to start small.
Window TreatmentsGoogle Home Smart Curtains: Setup & Routines (India 2026)
What "works with Google Home" really requires — Wi-Fi vs hub, linking the maker's app, voice commands, Google Routines, Nest sensors, and the honest cloud and Wi-Fi caveats nobody mentions.
Window TreatmentsRelated Tools — You may also find these useful
Curtain Cost Calculator
Get the fabric metres you need plus the total curtain cost by window size, fabric, pleat, lining and hardware.
Curtain CalculatorMotorized Curtain Cost Calculator
Estimate the all-in cost to motorise curtains — motors, tracks, hub and installation.
Cost CalculatorSmart Curtain Compatibility Checker
Check whether a motorised curtain will work with Alexa, Google, Apple Home, SmartThings or Home Assistant — and what you need.
Checker