Industrial Lighting Calculator

How to use the industrial lighting calculator

This tool helps you work out how much energy and money you could save by switching to LED lighting.

1. Enter your current setup – Choose the type of fittings you have (for example, metal halide or fluorescent), how many are installed, and how long they run each day.

2. Add your LED upgrade details – Pick your new LED fixture type and enter its wattage, cost, and installation price. You can also include a small allowance for maintenance savings if you’d like.

3. Set your energy rate – The calculator uses an average UK electricity cost, but you can adjust it to match your latest bill.

4. See your results – You’ll get your annual running cost, energy reduction, CO₂ savings, and a payback estimate showing how long it takes for the LEDs to pay for themselves.

It’s a quick way to see the impact of upgrading — less energy, lower costs, and a cleaner footprint for your building.

Industrial Lighting ROI Calculator – FAQs

What does the Industrial Lighting ROI Calculator do?
It estimates the energy use, running costs, and return on investment (ROI) when upgrading from traditional fittings to LED lighting. By entering your current fixture type, wattage, and hours of use, you can instantly see how much electricity, money, and CO₂ you could save each year.

Who is this calculator for?
It’s designed for facility managers, engineers, and business owners looking to reduce energy costs in warehouses, manufacturing plants, and distribution centres. Anyone planning a commercial or industrial lighting upgrade can use it to assess LED payback times before committing to a project.

How accurate are the results?
The calculator provides a realistic estimate based on your inputs and UK average electricity costs. Actual savings may vary depending on the efficiency of your chosen LED fittings, your tariff, and how consistently the lights are used. For project-specific data, use real product wattages and installation costs.

What’s a typical payback period for LED lighting?
Most industrial LED upgrades deliver a payback period between 1.5 and 3 years, depending on operating hours and energy rates. After that, all further savings are net profit.

How do LED lights reduce CO₂ emissions?
LED luminaires use up to 70% less energy than metal halide or fluorescent fittings. Because electricity generation produces carbon emissions, lowering your energy demand directly cuts CO₂ output — improving your site’s environmental footprint.

Can I use this calculator for a warehouse lighting upgrade?
Yes. It’s especially useful for large warehouses and high-bay spaces, where energy savings and payback times are most noticeable. You can enter your floor area, fixture count, and typical operating hours to estimate annual savings and emissions reductions.

What information do I need before I start?
You’ll need:

• Your current fixture type and wattage (e.g., 400 W metal halide)

• The number of fittings

• Operating hours per day and days per year

• Your electricity cost (from your bill)

• The LED fixture cost and installation price

What if I don’t know my electricity cost or wattage?
No problem — the calculator provides typical defaults for UK industrial lighting and average electricity costs. You can adjust these values at any time to fine-tune the results.

Why should businesses upgrade to LED lighting?
LEDs deliver higher efficiency, longer lifespans, lower maintenance costs, and better light quality. Upgrading industrial lighting can cut energy bills by more than half while improving visibility, safety, and sustainability.

Can this tool help with carbon reporting or ESG goals?
Yes. By showing your expected CO₂ reduction per year, it helps quantify your environmental impact — useful for sustainability reports and CIBSE TM66 circularity assessments.