Short answer: if you’re on Northland’s network, battery backup pays for itself in peace of mind alone – this is one of the most storm and cyclone-exposed grids in the country, and extended outages during severe weather aren’t rare. A hybrid solar and battery system keeps running when the grid doesn’t, which for a lot of our Northland customers is the entire reason they called us – not the power bill.
Why Northland specifically
Northland’s network covers a long, rural, coastal area, which makes it more exposed to storm damage than denser urban networks – fallen lines and damaged poles after ex-tropical cyclones and severe storms have led to extended outages in the region, sometimes lasting days rather than hours. If you’ve been through one of those outages, you already know the value of not needing the grid to keep the fridge, freezer and lights running.
The same abundant sunshine that makes Northland good for solar generation – Kaitaia averages around 2,200 hours a year, among the highest in the country – also means a battery system recharges quickly once the weather clears, rather than staying flat for days.
What actually keeps the power on
A standard grid-tied solar system shuts off automatically during an outage, for line-worker safety – solar panels alone don’t help you during a storm. What keeps things running is a hybrid system: solar and battery, with an inverter that can island itself from the grid and keep supplying your home directly from the battery. That’s the setup we install for most Northland customers who mention storms or outages as their main reason for calling.
Sizing for outages, not just daily use
A system sized only for average daily use might not carry you through a multi-day outage with reduced solar input from bad weather. If backup through extended outages is the priority, it’s worth sizing the battery with some margin above your daily average – something to discuss when we design your system, rather than assuming a standard kit automatically covers a worst-case scenario.
Coastal baches and inland properties
We see two common Northland setups: coastal baches along stretches like the Tutukaka coast and toward the Bay of Islands, often used part-time and particularly exposed to coastal storms, and inland lifestyle blocks further from town, where outages can take longer to fix simply due to distance from repair crews. Both benefit from the same core answer – a hybrid system that doesn’t depend on the grid being up.
Frequently asked questions
Will solar panels alone keep my power on during an outage?
No – a standard grid-tied solar system without a battery shuts off automatically during an outage for safety reasons. You need a hybrid system with battery storage and the right inverter to keep running independently of the grid.
How long can a battery system last during a multi-day outage?
It depends on battery size versus your usage, and how much solar you’re getting to recharge it during the outage. This is exactly why sizing for real outage scenarios – not just average daily use – matters if backup power is your main priority.
Is this only relevant for rural Northland properties?
No – coastal baches and in-town properties on the same network are exposed to the same outage risk. It’s more about how much you value not losing power than about how remote you are.