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After calculating your energy savings, enter your actual unit and installation costs to unlock a full ROI analysis and add your product to the database.
How this LED Savings Calculator works
Most online LED calculators use simple watt-substitution tables (e.g. "replace a 400W metal halide with a 150W LED"). This calculator uses lumen-based equivalence — LED wattage is calculated as existing lamp lumens ÷ LED efficacy (lm/W). This ensures the replacement LED delivers the same light output, making the comparison accurate regardless of what you are replacing.
Electricity costs use state-average commercial tariffs from the AEMC and AER — not US-based or generic rates that make Australian LED payback calculations meaningless.
LED Savings Calculator — Frequently Asked Questions
How much can I save switching to LED lighting in Australia?
Most commercial and industrial facilities save 50–75% on lighting electricity costs. The exact saving depends on what you are replacing, your state tariff and operating hours. South Australian businesses typically see the highest savings due to the state's high electricity tariff (~42c/kWh). Use the calculator above to get a figure based on your specific situation.
What is a typical LED lighting payback period in Australia?
Commercial LED upgrade payback periods in Australia typically range from 1 to 4 years. High-wattage industrial applications (metal halide or HPS high bays running 16+ hrs/day) often pay back in under 2 years. Adding rebates from the NSW ESS, Victorian Energy Upgrades (VEU) or SA REPS can reduce payback further. Enter your actual costs in the ROI section above to calculate your specific payback period.
Which states offer LED lighting rebates?
NSW — Energy Savings Scheme (ESS): typically $80–$200 per fitting for commercial projects, administered by IPART. Victoria — Victorian Energy Upgrades (VEU): $50–$150 per fitting through accredited installers. South Australia — Retailer Energy Productivity Scheme (REPS): co-investment support for energy efficiency upgrades. QLD, WA, TAS, ACT and NT do not currently have equivalent statewide commercial rebate schemes.
Why use lumens instead of watts to calculate LED replacement wattage?
Watt-for-watt substitution tables are a rough guide at best. LED efficacy varies from ~80 lm/W (economy) to 170+ lm/W (premium), so the LED wattage needed to match a given light output varies considerably by product quality. This calculator uses the formula LED watts = existing lumens ÷ LED efficacy (lm/W), giving you an accurate like-for-like replacement wattage regardless of product tier.
Can I use this for warehouse / high bay LED replacement?
Yes — select Metal Halide 150W, 250W or 400W (or HPS) as your existing lamp type. The calculator will automatically populate the standard lumen output for that lamp. Choose your LED efficacy tier for the high bay fitting you are considering, then see your energy savings and — once you enter actual product and install costs — your payback period. High bay LED replacement typically delivers the fastest ROI of any commercial upgrade due to high wattage and long operating hours.
What is the difference between Economy, Standard, High Performance and Premium LED?
Economy (80 lm/W) — budget import fittings, variable quality and warranty. Standard (110 lm/W) — mainstream commercial-grade fittings. High Performance (140 lm/W) — premium commercial fittings specified for industrial and retail applications. Premium (170 lm/W) — top-tier products using the latest LED chips. Higher efficacy = fewer LED watts needed = greater energy savings.
Your savings appear here
Fill in the form and click Calculate to see daily, monthly and annual energy savings. Then add your actual project costs for a full ROI payback analysis.
Energy Savings Breakdown
Current lighting vs LED replacement
💰 Add Real Costs for Full ROI
Enter what you actually paid to calculate payback period and financial projection.