Updated October 2026 · by Newy Solar Co
Newcastle solar battery price index
Installed on an existing solar system, batteries we install in Newcastle start from about $12,200 before rebates and about $8,000 after the federal and NSW battery rebates (October 2026).
Installed battery prices, added to existing solar
Real prices from the systems we install across Newcastle, Lake Macquarie, Maitland and the Hunter. Rebates as checked 24 September 2026.
| Battery | Size | Installed price | After rebates |
|---|---|---|---|
| AlphaESS SMILE M5 / M10 · 14 kWh usable | 14 kWh usable (1 × 14 kWh module) | $12,200–$12,500 | $8,000–$8,300 |
| AlphaESS SMILE M5 / M10 · 28 kWh usable | 28 kWh usable (2 × 14 kWh module) | $16,000–$16,300 | $9,000–$9,300 |
| GoodWe ESA all-in-one · 16 kWh usable | 16 kWh usable (2 × 8 kWh usable module) | $14,000–$14,300 | $9,400–$9,700 |
| GoodWe ESA all-in-one · 24 kWh usable | 24 kWh usable (3 × 8 kWh usable module) | $17,000–$17,400 | $10,800–$11,200 |
| GoodWe ESA all-in-one · 32 kWh usable | 32 kWh usable (4 × 8 kWh usable module) | $20,600–$20,900 | $13,500–$13,800 |
| GoodWe ESA all-in-one · 40 kWh usable | 40 kWh usable (5 × 8 kWh usable module) | $24,100–$24,500 | $16,700–$17,100 |
| GoodWe ESA all-in-one · 48 kWh usable | 48 kWh usable (6 × 8 kWh usable module) | $27,700–$28,100 | $20,000–$20,400 |
| EcoFlow OCEAN 2 · 16.06 kWh nominal | 16.06 kWh nominal (2 × 8.03 kWh nominal module) | $15,500–$15,800 | $10,900–$11,200 |
| EcoFlow OCEAN 2 · 24.09 kWh nominal | 24.09 kWh nominal (3 × 8.03 kWh nominal module) | $19,200–$19,600 | $13,000–$13,400 |
| EcoFlow OCEAN 2 · 32.12 kWh nominal | 32.12 kWh nominal (4 × 8.03 kWh nominal module) | $23,100–$23,400 | $16,000–$16,300 |
| EcoFlow OCEAN 2 · 40.15 kWh nominal | 40.15 kWh nominal (5 × 8.03 kWh nominal module) | $26,900–$27,300 | $19,500–$19,900 |
| EcoFlow OCEAN 2 · 48.18 kWh nominal | 48.18 kWh nominal (6 × 8.03 kWh nominal module) | $30,800–$31,200 | $23,100–$23,500 |
Common questions
How much does a solar battery cost in Newcastle in 2026?
Installed on an existing solar system, batteries we install in Newcastle start from about $12,200 before rebates and about $8,000 after the federal and NSW battery rebates (October 2026).
Do these prices include the battery rebates?
Both columns are shown: the installed price, and the price after the federal Cheaper Home Batteries discount and the NSW peak demand battery incentive. The $15,000 interest-free loan is finance, not a discount, so it is not taken off.
Why is there a price range?
Roof type, single or three phase power and switchboard work change the installed price. Your written quote confirms the exact figure.