Solar connections & upgrades for your business
When you’re ready to install or upgrade your business’ solar photovoltaic (PV) system, battery system, or other distributed energy resource system, you will need to engage with both Synergy and Western Power. Depending on the size of your system, there are a few steps to follow in order for you to get approval to connect it to the grid.
If you’re a not-for-profit or educational institution (on either the C1 or D1 tariff) with a small system which has an inverter capacity between 500 watts and 5kW, you could also be eligible to apply for the Distributed Energy Buyback Scheme (DEBS). Learn more about DEBS here.
Systems less than 30kW
If you’re applying for a new or upgraded solar PV system, battery system, or other distributed energy resource system with an inverter capacity less than 30kW, you can start your Distributed Energy System (DES) application directly with Synergy.
We'll arrange for Western Power to approve your installation before the installation of your system so that it can be connected to the grid.
Systems greater than 30kW
If you’re applying for a new or upgraded solar PV system, battery system, or other distributed energy resource system with an inverter capacity greater than 30kW, please contact Western Power first to get your Commercial Solar (CS) number.
Once you have obtained the CS number, you can start your Distributed Energy System (DES) application with Synergy.
What you'll need to apply
There’s a few things that you’ll need to have handy when completing your DES application, including your:
- Synergy business account number (it’s in the top right corner of your bill)
- Supply address
- Phone number
- Meter number
- Solar provider's name and contact details
- Solar PV system size
- Solar inverter capacity
- Battery capacity (for systems with batteries only)
- Battery power (for systems with batteries only)
- CS number (for systems with an inverter capacity greater than 30kW only)
To help you out, we’ve outlined the steps you need to take to have your new or upgraded system connected to the grid.
Why do I still need to pay for electricity with solar connected?
You only need to pay for electricity when your panels aren't producing enough energy to power your home. The good news is, battery storage technology now lets you store surplus energy produced during the day, so you can take advantage of it long after the sun goes down.
Having trouble with the online form?
If the online form isn’t working, or you need an offline copy, you can download the form in PDF format here. Once you have completed the offline form, you can submit it to us online using the link below. Please note, this application form is for systems with an inverter capacity under 30kW only.