Darwin homes get about $1,900 in federal STCs on 6.6kW. Lock in savings before they drop in 2027.
Darwin is STC Zone 2, Katherine Zone 2 and Alice Springs Zone 1, which means about $1,900 in federal STCs on a 6.6kW Darwin install, or $3,876 on a 13.3kW system. Stack the federal battery rebate (about $2,584 on 10kWh), the 1:1 feed-in scheme, and any NT-specific grants still open. Enter your postcode to see your real entitlement and get matched with one vetted local installer.
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Darwin is STC Zone 2, Katherine Zone 2 and Alice Springs Zone 1. Zones 2 and 1 earn more STCs per kW than Zones 3 and 4, where most Australians live. These values are for Darwin and represent the federal STC discount applied at point of sale.
| System size | Solar rebate (STCs) | Federal battery (about 30%) | Total savings |
|---|---|---|---|
| 5kW solar | $1,444 | N/A | $1,444 |
| 6.6kW solar | $1,900 | N/A | $1,900 |
| 6.6kW + 10kWh battery | $1,900 | ~$2,584 | $4,484 |
| 10kW solar | $2,888 | N/A | $2,888 |
| 10kW + 15kWh battery | $2,888 | ~$3,762 | $6,650 |
| 13kW solar | $3,762 | N/A | $3,762 |
STC rebate values are for Darwin (STC Zone 2) on the 5-year 2026 deeming period. Battery rebate based on the federal Cheaper Home Batteries Program (about 30% off). Actual values may vary.
Darwin is STC Zone 2, Katherine Zone 2 and Alice Springs Zone 1, so homes in Darwin, Katherine and Alice Springs get more STCs per kW than homes in Zones 3 and 4. The rebate is applied as a point-of-sale discount by your installer.
The NT Government's battery grant scheme launched in December 2024 with $6 million in funding, offering $400 per kWh of useable battery capacity up to a maximum of $12,000 per property. This covers the purchase and installation of eligible battery systems, including adding batteries to existing solar. The scheme has reached its funding allocation and is currently closed to new applications. Pending applications may still be assessed if additional funding becomes available.
Eligible for registered residential property owners, NT businesses, and not-for-profit organisations. One application per property. Contact: 1800 193 111 or sustainableenergy.dme@nt.gov.au
Federal program providing approximately 30% off eligible battery systems. Available to all NT households regardless of whether the NT battery scheme is open. Choose an installer registered with the program to receive the discount at point of sale.
A joint Australian and NT Government program providing grants for shared solar systems in apartment complexes and unit blocks. Funding covers solar panels, inverters, solar sharing technology, smart meters, and battery storage. Applications are submitted through GrantsNT by the management corporation.
The Australian Government provided up to $150 in energy bill rebates for NT households during 2025, applied automatically as two $75 quarterly instalments. This was part of the national $1.8 billion Energy Bill Relief Fund. Check the NT Government website for any 2026 extensions.
Members of the NT Concession Scheme can receive up to $1,200 per year in electricity concessions (covering up to 8,000 kWh). This is separate from solar rebates and can be combined with solar savings. Check your eligibility if you hold a concession card or receive government payments.
If the NT Home and Business Battery Scheme reopens, the 10kWh battery could also qualify for a $4,000 NT grant ($400/kWh), bringing potential total savings to $8,484. The 1:1 feed-in rate adds ongoing value on top of the upfront rebates.
See what these rebates look like on your roof. Enter your postcode:
Get a free written quote from one SAA-accredited (formerly CEC) installer in the NT. Darwin's Zone 2 rating means more STCs per kW than in Zones 3 and 4.
Your postcode sets your zone. Darwin is STC Zone 2, Katherine Zone 2 and Alice Springs Zone 1.
The STC rebate appears as a point-of-sale discount. No separate application needed. Just make sure your quote clearly shows it.
For battery savings, select an installer registered with the federal Cheaper Home Batteries program. The discount of about 30% is applied at the point of sale.
Watch the NT Home and Business Battery Scheme for reopening. If available, apply through the NT Government for up to $12,000 in additional battery grants.
Once installed, you start earning 1:1 feed-in credits for any solar you export. The NT's strong sunshine means high generation year-round.
The NT receives more sunshine than anywhere else in Australia, which lifts solar panel output. Darwin averages over 8 hours of peak sun per day in the dry season.
Darwin's Zone 2 STC rating means NT households typically get $190 to $912 more than southern states for the same system size.
Get credited the same rate for exports as you pay for imports. Most states pay 3 to 7c for exports while charging 30 to 40c for imports. The NT pays you the full rate.
Federal STCs reduce each 1 January and phase out entirely by 2031. Installing now locks in today's rebates.
NT electricity is expensive. Solar provides substantial savings, and the 1:1 feed-in rate makes every exported kWh worth the full retail price.
Bigger rebates, strong sunshine and 1:1 feed-in rates combine to deliver some of the fastest solar payback periods in the country.
Postcode and a couple of quick questions. We'll work out your STC zone (Darwin, Alice Springs, Katherine or remote), the federal battery rebate, and check any active NT grants. Then match you with one vetted local installer.
Free, no obligation. SAA-accredited installers only. No spam or pushy sales.
Darwin is STC Zone 2, Katherine Zone 2 and Alice Springs Zone 1. Sunnier zones create more STCs per kW of solar installed, so a 6.6kW system in Darwin typically receives $1,900 in STC rebates and $2,014 in Alice Springs, compared to $1,482 in Melbourne.
NT residents can access the federal STC rebate (about $1,900 for 6.6kW in Darwin, Zone 2) and the federal Cheaper Home Batteries program (~30% off batteries). The NT Home and Business Battery Scheme has closed. The Solar for Multi Dwellings Grant also provides up to $7,500 per dwelling for apartments and units.
The NT Home and Business Battery Scheme launched in December 2024 with $6 million in funding, offering $400 per kWh of useable battery capacity up to $12,000. The scheme has reached its funding allocation and is currently closed to new applications. Pending applications may still be assessed if funding becomes available. NT residents can still access the federal Cheaper Home Batteries program (~30% off).
Darwin households (Zone 2) typically save about $1,900 on a 6.6kW solar system through the federal STC rebate alone, and $3,876 on a 13.3kW system. Adding a 10kWh battery with the federal Cheaper Home Batteries rebate ($2,584) brings a 6.6kW system's total savings to around $4,484. The NT battery scheme has closed.
The NT offers a 1:1 feed-in rate scheme where you are credited the same rate for exports as you pay for imports. This is unique to the Northern Territory and makes solar particularly valuable, as every kWh you export earns the full retail rate rather than the 3 to 7c most other states offer.
The NT Solar for Multi Dwellings Grant Scheme provides up to $7,500 per dwelling (excluding GST) to cover up to 50% of installation costs for shared solar systems in apartment complexes and unit blocks. It covers solar panels, inverters, solar sharing technology, smart meters, and battery storage. Applications are made through GrantsNT by the management corporation.
Members of the NT Concession Scheme can receive up to $1,200 per year in electricity concessions (for up to 8,000 kWh). This is separate from solar rebates and can be combined with solar savings to reduce your overall energy costs further.
The federal STC rebate is automatically applied as a point-of-sale discount by your SAA-accredited installer. No separate application is needed. For the federal battery rebate, choose an installer registered with the Cheaper Home Batteries program. The NT battery scheme and multi-dwelling grants require separate applications through the NT Government.
The NT combines bigger federal solar rebates than the southern states (Darwin is STC Zone 2), exceptional sunshine for maximum generation, 1:1 feed-in rates where you earn the full retail rate for exports, and high electricity costs. This creates some of the fastest payback periods in the country.
