Lighting running-cost comparison
Compare electricity use and running costs for two lighting arrangements using your own readings and tariff.
Your plan
Complete the inputs to see the result.
What this assumes
- Enter average electrical input power, rather than cooling output or motor capacity.
- The same operating hours and tariff are used for both options. Actual cycling and seasonal conditions can change use.
- Costs use the rates you enter, before tax. Currency selection labels amounts and does not convert them.
How it works
Put in your numbers
Use your own rates, times and measurements.
See your answer straight away
It works it out as you type.
Copy or print it
Send it on, or keep it with the job.
What it covers: Compare electricity use and running costs for two lighting arrangements using your own readings and tariff.
Free to use. No sign-in needed.
How to use lighting running-cost comparison
Compare electricity use and running costs for two lighting arrangements using your own readings and tariff.
- Enter option a average electrical input (w) and the other measured inputs.
- Check the units and the assumptions below the result.
- Review the result, then copy or print the plan. Signed-in managers can save a private customer snapshot.
Tips and common mistakes
- Enter average electrical input power, rather than cooling output or motor capacity.
- The same operating hours and tariff are used for both options. Actual cycling and seasonal conditions can change use.
- Costs use the rates you enter, before tax. Currency selection labels amounts and does not convert them.
Questions
Where do the input values come from?
You enter your own values. Start with option a average electrical input (w) and use measured quantities, product specifications or your chosen planning assumptions.
What assumptions affect the result?
Enter average electrical input power, rather than cooling output or motor capacity. The same operating hours and tariff are used for both options. Actual cycling and seasonal conditions can change use. Costs use the rates you enter, before tax. Currency selection labels amounts and does not convert them.
Can I save this against a customer?
Signed-in Field managers can open the Toolbox version and explicitly save the inputs and result to their private customer history.
Does this book work or place an order?
This prepares a planning result. Review the scope and use the existing job, quote, schedule or supplier workflow separately when ready.
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Compare options and combine tasks
Keep up to four options to compare, or combine separately calculated tasks into one job. These snapshots last only while this page stays open. Use Save your work for a private CRM record.