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New South Wales · Postcode 2281

Newcastle solar & clean energy data

3,051 solar installations registered with the Clean Energy Regulator · ranked top 15% in New South Wales · data current as at 2026-04-03

Newcastle
Ranked top 15% for solar uptake in New South Wales
#104
in New South Wales
3,051
Total solar installs
201
Installed last 12 months
-28%
12-month growth
Monthly solar installations · past 12 months
12 months agoThis month
227
Home batteries
7.4%
Of solar homes have battery
Cheaper Home Batteries Program · from Jul 2025
29,454
tonnes CO₂/yr
Estimated annual carbon avoided by Newcastle's 3,051 solar systems combined — equivalent to taking 14,026 cars off the road.
Community total, not per household. Estimated from avg 9kW system size × NSW grid emissions factor.
Compared to neighbouring postcodes
2281
3,051
#104 state
you
2280
4,691
#66 state
Newcastle
2282
2,866
#115 state
Newcastle
2283
4,701
#65 state
Newcastle
2284
2,592
#131 state
Newcastle
2278
549
#409 state
Shortland
New South Wales grid · community impact

Based on last week's New South Wales grid mix (avg 790 gCO₂/kWh), Newcastle's 3,051 solar systems typically avoid around 18.44 tonnes of CO₂ every hour during peak generation.

Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly

Newcastle sits in the top third of New South Wales for solar uptake, ranking 104th in the state out of 721 postcodes in the Clean Energy Regulator dataset. New installations eased in the past 12 months (201 systems, 28% below the previous year), a natural slowdown after earlier periods of stronger uptake.

The combined impact is substantial: Newcastle's solar community avoids an estimated 29,454 tonnes of CO₂ every year — equivalent to taking 14,026 cars off the road or powering around 5,891 average Australian homes with clean electricity. This is estimated using New South Wales's average grid emissions intensity of 790 gCO₂/kWh, sourced from OpenElectricity, applied to an average system size of 9kW.

Monthly solar installations · Newcastle
201 installs · May – Apr
24
15
12
21
17
15
15
11
22
24
11
14
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