Commercial solar installations

Commercial solar installations

Commercial solar installations are systems with a generating capacity greater than 7.46kW.

A comprehensive guide to commercial solar is available from the Clean Energy Council website which includes business case information and a handy checklist.

Your system must be installed by a Clean Energy Council accredited installer who also holds a Tasmanian Electrical Contractors License. 

Your installer will complete a commercial solar connection application form which will have details about your new solar design that will be assessed by a Hydro Tasmania engineer. Your application will be reviewed to ensure your solar installation meets appropriate technical standards and requirements. Our electrical engineer may request modifications be made to ensure compatibility with the network.

Commercial solar connection applications are assessed for the impact they will have on the distribution network and will only be approved if the installation does not adversely affect the stability of the network. Charges may follow if extensive studies are required on the network impacts of your proposed system.

Your site may also need to be assessed to check that current infrastructure is suitable to accommodate additional generation. If infrastructure upgrades need to be made, any timeframes given will be extended accordingly. Every effort will be made to perform the work in a timely manner but this may be impacted by scheduled / unscheduled maintenance and weather events. You will likely be liable for the cost of upgrades to Hydro Tasmania’s electrical infrastructure to accommodate your commercial solar installation

There is no guarantee that your application will be approved, as the primary responsibility of Hydro Tasmania is to ensure the safe operation of the distribution network.

Your solar installation must have automatic protection equipment to protect your plant and associated facilities against abnormal voltage and extreme frequency excursions in the power system, this includes power outages.

All commercial solar installations must have the capacity to allow remote disconnection and reconnection from the network by the Hydro Tasmania system controller to manage network stability and prevent system collapse.

It is your responsibility to maintain your solar infrastructure in a safe operating condition, including all protective devices.

If your solar installation is approved, a connection and power purchase agreement will be sent to you; you must sign and return it to The feed-in tariff (FiT) is set on a case by case basis for commercial solar installations.

There is an annual fee charged on all commercial solar installations, which offsets the ongoing cost of network monitoring.

Once installed, your solar installer will submit Electrical Works Request (EWR) and Certificate of Electrical Compliance (CEC) documentation to Hydro Tasmania. It is important that your inverter remains switched off until your new meter has been installed.

Once Hydro Tasmania match your signed connection and power purchase agreement, Electrical Works Request and Certificate of Electrical Compliance, work will be schedule to install a digital import-export meter at your premises. Under normal operating conditions this will be done within 10 business days, but during weather events or periods of planned/unplanned outages it may take longer. At this time Hydro Tasmania staff will activate your solar installation.

Inverters switched on before metering has been completed are in breach of the connection and power purchase agreement and may forfeit the agreement. Customers are not entitled to the feed-in tariff until metering has been completed.