NSW Energy Upgrade Rules Change From 7 September 2026

Short summary

Updated rules for the NSW Energy Savings Scheme and Peak Demand Reduction Scheme apply from 7 September 2026. The changes cover certificate eligibility, customer payments, approved equipment and evidence for air-conditioning and battery activities.

This does not create a guaranteed rebate for every household or strata scheme. The rules primarily govern how accredited certificate providers create energy-saving or peak-reduction certificates. The equipment, site, installer, implementation date and provider process still matter.

Anyone comparing an upgrade should ask for a written quote that identifies the equipment, the scheme activity, the amount they pay and any certificates or incentives assigned to the provider.

What changed on 7 September

IPART says the new Energy Savings Scheme rule applies from 7 September. The previous rule applies to implementations from 1 July to 6 September 2026.

The Energy Savings Scheme changes include:

• clarified minimum-payment requirements for multi-split and ducted air conditioners;
• clarified eligibility for small single-split and ducted systems under the relevant business air-conditioning activity;
• a transition allowing specified air-conditioning work implemented from 1 July to 6 September to use the new or previous rule; and
• requirements for approval of exempt energy programs.

The updated Peak Demand Reduction Scheme rule applies to activities with an implementation date on or after 7 September. Its changes include:

• clarified eligibility for specified small air conditioners;
• clarified that minimum payments for the apartment and small-business battery activities apply per implementation;
• approved-equipment-list requirements for specified battery activities;
• clarified battery-capacity, inverter-output and solar-PV timing requirements;
• additional safety and behind-the-meter requirements for the large commercial battery activity; and
• exclusion of sites with registered life-support equipment from the household demand-response battery activity.

These are technical certificate rules. They do not establish that one product is suitable for a property or that the quoted saving will be achieved.

What households should check on an air-conditioner quote

The rule pages distinguish between air-conditioner types, cooling capacities, site types and installation methods. A model being efficient or available for sale does not by itself prove that an installation qualifies for certificates.

Before accepting a quote, ask the provider to state:

1. the exact activity and rule version being used;
2. whether the quoted model is on every required product list;
3. whether the site and system type meet the activity requirements;
4. the minimum customer payment and the amount shown on the invoice;
5. what old equipment must be removed and how disposal will be recorded; and
6. which certificates or other benefits the customer assigns to the provider.

Keep the quote, invoice, product details and installation records. If the work sits close to the 7 September changeover, confirm which implementation date and rule version the accredited provider records.

Apartment battery activity

IPART's current Peak Demand Reduction Scheme material also lists the BESS3 apartment-building battery activity. It commenced on 1 September 2026, before the broader rule change on 7 September.

The published requirements include an apartment building classified as BCA Class 2 with at least four dwellings, combined usable battery capacity greater than 20 kWh and no more than 200 kWh, listed equipment and an appropriately accredited installer. The installation must be outdoors, meet the stated installation standard, and have required planning and network approvals. IPART lists a minimum payment of $1,000 per implementation and says a fact sheet must be supplied with the quote.

That is not a $1,000 battery price or a promise that a project will qualify. A strata committee should obtain the current fact sheet, confirm common-property approvals, ask how the incentive is calculated, and compare the full installed cost, warranties, insurance implications and ongoing responsibilities.

Read the body corporate fees guide for the difference between recurring levies and project costs. The strata versus freehold guide explains why common-property decisions differ from a standalone house purchase.

Registered life-support equipment

The updated rule clarifies that no registered life-support equipment can be used at a site under the BESS2 household annual demand-response activity.

Households that rely on life-support equipment should not treat a general battery or demand-response promotion as evidence of eligibility or safety. Confirm the site's registration and arrangements with the electricity retailer, distributor, accredited provider and relevant health professional before changing energy equipment or demand-response settings.

What this means for RealEstateCalc tools

The rule change does not alter stamp duty, land tax, mortgage repayment, borrowing power or rental-yield formulas. No calculator assumption has been changed in response.

Upgrade costs and savings depend on the property, equipment, quote, certificate calculation and energy use. RealEstateCalc does not currently publish an energy-upgrade rebate calculator because the current rules cannot be reduced safely to a single household formula without provider, product and implementation data.

What remains uncertain for an individual quote

The published rule change does not tell a customer:

• whether a chosen product and site will qualify;
• the number or market value of certificates created;
• the final discount offered by a provider;
• whether another government program can be combined with the activity;
• whether strata, planning, network or insurer approval will be given; or
• the household's future electricity saving.

Check the current rule, method guide, fact sheet, approved equipment and accredited-provider status before relying on a quote.

Sources

• IPART: New ESS and PDRS Rules published 31 August 2026, posted 3 September 2026.
• IPART: Energy Savings Scheme rule and changes, checked 7 September 2026.
• IPART: Peak Demand Reduction Scheme rule and changes, checked 7 September 2026.

This article provides general information only. It is not an eligibility decision, energy saving estimate, product recommendation, quote, legal advice or financial advice. Check the current scheme documents and obtain property-specific advice before approving work.

Last updated: 7 September 2026.