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NSW ESS and PDRS (ESCs and PRCs)

How are NSW ESCs for commercial lighting calculated?

Short answer

There is no single NSW commercial lighting rate. ESCs are calculated from the lighting method: the energy saved against a baseline, over the activity's lifetime, so floor area, hours and fitting type all matter. Your payment per ESC then depends on the market.

Written and checked by the Energy Merchants desk · Reviewed 3 October 2026 · For installers and homeowners

People often ask for NSW commercial lighting “rates” as if there were a published figure per lamp or per square metre. There is not, and treating it that way is how quotes go wrong.

What a rate really is

Two different numbers hide inside the word “rate”.

How many ESCs a job creates. This is calculated, not looked up. The Energy Savings Scheme method for commercial lighting works from the energy the new lighting saves compared to a baseline, then credits that saving over a defined period. One ESC represents one megawatt hour of energy savings, as set out in what an ESC is.

What each ESC is worth in dollars. That depends on the ESC market and on the terms of whoever you sell to. See ESC price in NSW for how pricing moves.

Multiply the two and you have the incentive. Change either one and the incentive changes.

What drives the ESC count

Without quoting figures that change between rule versions, these are the inputs that matter.

  • Baseline lighting. What was there before, and what the method assumes it would have been.
  • New lighting efficiency and power. The installed wattage and the product’s performance.
  • Operating hours. A fitting that runs 24 hours in a warehouse saves more than one in a part-time office.
  • Space type. Methods often differentiate by the building or space.
  • Lifetime. The period over which savings are credited.
  • Eligibility. The product, the installer and the site must all meet the rules.

Your accredited provider will do the calculation using the scheme’s tools. If a salesperson quotes a flat dollars-per-light figure without asking about hours and baseline, be careful.

What this means for installers

If you are selling lighting upgrades into NSW businesses, bring the measurements to the quote: space type, hours, existing load. It turns a vague discount into a number you can defend. Keep the evidence trail, because the administrator audits; see IPART ESS compliance. If you work through an Accredited Certificate Provider, ask who carries the risk if an ESC is later challenged, and how quickly they pay; compare with NSW ESC payment time.

From the desk: Ask for the provider's calculation sheet, not just the final dollar figure. If two quotes differ, the difference is usually in the hours assumption or the baseline, and you want to know which is right before the job.

What this means for business owners

Treat any NSW lighting discount as an estimate until the provider confirms the method version and your inputs. The cheapest-looking quote is not always the one that survives an audit.

The full NSW picture is in the ESCs and PDRS hub. If your business also installs solar, see STC trading and how it works.

Follow-up questions

People also ask

Is there a fixed dollar rate per light?
No. The number of ESCs depends on the method inputs, and the dollar value depends on the ESC market and your provider's terms.
Where do I find the method inputs?
In the Energy Savings Scheme rule and the relevant method guide published by the NSW scheme administrator. Always use the version in force on the job date.

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