
What off-grid actually costs through a Southland winter
A year of data from a Wānaka cabin shows exactly where the money goes — and why a well-designed off-grid setup performs better than most people expect.
Off-grid country, coastal air, and the longest dry spells in the motu.
Northland has more genuinely off-grid small homes than anywhere else in the country. Land is more affordable, services are further away, and sun for solar is plentiful.
Water storage is the constraint people underestimate. A dry Northland summer will empty an undersized tank well before autumn.
Rainfall is seasonal here. Plan storage around the driest stretch, not the annual average.
Near the coast, specify fixings, cladding and joinery rated for a marine environment.
Northland's sun hours make a modest array go further than the same system in the deep south.
Indicative average nightly rates we use in our backyard income calculator for Northland. Actual rates vary by season, site and standard of finish.
| Size | Avg nightly (NZD) |
|---|---|
| 1 bedroom | $145 |
| 2 bedrooms | $185 |
| 3 bedrooms | $235 |

A year of data from a Wānaka cabin shows exactly where the money goes — and why a well-designed off-grid setup performs better than most people expect.

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