Solar Gate Automation and Battery Backup on the Central Coast

How a solar gate system works

A solar gate kit has three parts working together:

• A solar panel that charges a battery during daylight
• A battery that runs the motor, day and night
• A low voltage motor designed to run from that battery

The gate does not run directly from the sun. It runs from the battery, and the panel's job is to put back what the gate uses. That means the system has to be sized for the number of times the gate opens each day and for the shortest, greyest days of winter, not for a sunny afternoon.

Shade is the Central Coast's main problem

Much of the hinterland and the escarpment is heavily treed. A panel that sits under spotted gums or in the shadow of a ridge for half the day will not keep a battery topped up. Before committing to solar, look at where the panel could go:

• Can it face roughly north with clear sky for most of the day?
• Will trees grow into its light over the next few years?
• Can it be mounted on a separate pole away from the gate if the gate itself is shaded?

A good installer will look at this on site, often at more than one time of day. If shade cannot be solved, a mains run or a hybrid setup may be better.

Sizing for your use

The questions that decide battery and panel size are practical ones:

• How many times a day does the gate open and close?
• Are there accessories drawing power all the time, such as an intercom, keypad lights or a GSM module?
• How heavy is the gate and how far does it travel?
• How many cloudy days in a row do you want it to survive?

A weekender that opens twice a day needs far less than a working property with deliveries and visitors. Intercoms and cellular modules in particular can draw power around the clock.

Battery backup for mains gates

Battery backup is the same idea applied to a mains powered motor. The motor runs from mains normally and switches to a battery if power drops. Summer storms and bushfire season both bring outages on the Central Coast, and a gate that cannot open in an emergency is a real problem. Backup is worth asking about on any automatic gate, not just rural ones.

Batteries wear out

Gate batteries are consumables. Heat, deep discharge and age all shorten their life, and a battery that has quietly lost capacity is a common cause of a gate that works in summer and fails in winter. Ask your installer what battery type they fit, how to tell when it is getting tired, and how it is protected from heat inside the housing.

Wildlife and the bush

Rural gates on the Central Coast share their driveways with wallabies, wombats and the odd kangaroo. Safety beams can be triggered by animals, and a gate left open for too long lets them wander through. A sensible auto-close setting helps. Our guide to long acreage driveways has more on this.

On bush fire prone land

If your property is mapped as bush fire prone, the materials used for the gate and fence matter as much as the motor. See our bushfire guide.

Tell us about your gate and we will connect you with an installer who can check panel placement on site.