Smart Inverters required under the Victorian Solar Homes Package

Victoria announced some more details of their solar homes package yesterday – and one of the interesting things that came out of this announcement were some specifics on what constitutes a ‘smart inverter’. 

Smart Inverters required under the Victorian Solar Homes Package

Victoria’s Solar Homes Package provides a rebate up to $2,225 or 50% of the price of a solar power system. This is in addition to Australia’s country-wide solar subsidy (STCs). They’re also responsible for solar battery rebates in Victoria and offer an affordable and exciting way to install solar and/or energy storage at your premises. 

“Victorians have been enthusiastic about adopting renewable energy technology, to take charge of their power bills and help protect the environment,” Minister for Solar Homes Lily D’Ambrosio was quoted online as saying. “Ensuring all new systems are equipped with smart inverters will mean we have a more responsive grid that can handle the rapid uptake of renewable energy.”

With the concept of a ‘smart inverter’ being somewhat of a misnomer, in that it’s not really clear what would make an inverter smart. Solar Quotes initially called it a ‘buzzword’, but, with the release of the Government’s Notice To Market, we are now able to discuss the functionalities an inverter will have to have if can be rebated by the Victorian Solar Homes Package:

a) “Enhanced Anti-Islanding”

No inverter is an island. “Normal” anti-islanding refers to turning off the inverter as soon as grid power is lost, as it has the possibility to damage grid equipment and can also be very dangerous for those on the grid trying to fix things up (as it can turn a ‘dead’ power line into something you really don’t want to be working on). A ‘smart inverter’ would have an inverter which complies with international standard IEC 62116, a comprehensive standard to ensure the inverter is able to work well above minimum safety requirements. 

b) Volt-Watt / Volt-Var

These features “facilitate greater penetration of distributed energy sources (DER) by automatically improving power quality”, as per the Victorian Government. This isn’t a major issue as their Notice to Market notes that 95% of inverter installations under the rebate scheme have installed suitable brands with these options, (and, indeed, 95% of the inverters have ‘enhanced anti-islanding’. 

It’s great to get some clarification on this and we’re excited to see how the rest of the solar homes package ends up. 

Read More Solar News:

Lightsource BP offering residential PPAs

Lightsource BP, a UK based solar and smart energy solutions company, is preparing to move into the Australian market where they will offer residential rooftop PV solar power at no upfront cost – instead using the PPA (Power Purchase Agreement) model usually reserved for large-scale solar installs. 

Lightsource BP Solar in Australia

Lightsource BP in Australia
Lightsource BP in Australia (source: bp.com)

Lightsource Labs Australia Pty Ltd (LS Labs) have applied to the Australian Energy Regulator (AER) to launch their product, asking for an individual exemption to hold a retailer authorisation. The application says that LS Labs could launch their product in NSW, SA, QLD, and VIC within a couple of weeks, so all eyes on the regulator to see if they’re happy to grant the exemption.

The way LS Lab’s product will work is that they will supply, install, operate and maintain a solar array, batter and smart metering system to homes, and then sell the renewable power to the client at a fixed price under a PPA model. According to Renewables Now, the period of PPA could be up to 20 years and price per kWh will depend on the terms of each individual contract (i.e. it’ll be cheaper depending on how long the contract is). They also note that customers will be offered the opportunity to buy the system at any time after the second year of the PPA.

RenewEconomy is reporting that Lightsource BP partnered with French company Edf in the UK – using LG Chem batteries as part of the ‘Sunplug’ program. These PPAs were around 9.9p/kWh (~$0.18 AUD) so it’ll be interesting to see how this fares in the Australian market. 

Last month, Lightsource BP acquired Ubiworx Systems to help support a plan for the global launch of a smart-home solution. Kareen Boutonnat, COO of Lightsource BP, said at the time that the “power of the home” will be very important with regards to shaping the world’s “new energy future” – a situation where the energy market transcends monitoring and controlling of consumption, turning ‘smart homes’ into ‘genius homes’ (as we call them). Will be exciting to see where this goes over the next few years! 

 

 

 

Read More Solar News: