Tesla Virtual Power Plant in SA

A Tesla Virtual Power Plant will be built in South Australia, comprising of 50,000 home solar and battery systems state-wide. The deal between the South Australian Government and Elon Musk’s Tesla was announced last week by Premier Jay Weatherill ahead of the SA March state election. 

The SA government have pledged to do their part in the implementation of the virtual power plant scheme with a $2 million grant and a $30 million loan from the state Renewable Technology Fund.

Tesla Virtual Power Plant

According to Premier Weatherill, a trial of the scheme has already begun in Housing Trust properties, with 100 properties to receive their systems by EOFY (June 30), and another 1,000 in FY 18/19. After the trial is complete another 24,000 Housing Trust properties will receive the systems. 

Since there’s no word yet on the Tesla Powerwall 3 release date, they’ll use the Powerwall 2 batteries which have a 13.5kWh size. 5kW solar arrays will also be used for the 50,000 homes included in the virtual power plant. No word yet on the specifics of the solar panels the arrays will consist of but we’ll bring you that information as it becomes available.

Tesla Virtual Power Plant - Powerwall 2 Solar Battery
Tesla Virtual Power Plant – Powerwall 2 Solar Battery (source: tesla.com)

A statement from Tesla was released: 

“When the South Australian Government invited submissions for innovation in renewables and storage, Tesla’s proposal to create a virtual power plant with 250 megawatts of solar energy and 650 megawatt hours of battery storage was successful. A virtual power plant utilises Tesla Powerwall batteries to store energy collectively from thousands of homes with solar panels. At key moments, the virtual power plant could provide as much capacity as a large gas turbine or coal power plant.”

Danny Price of Frontier Economics discussed the program with the ABC:

“The biggest saving for consumers is that they don’t have to pay for as much network cost to deliver power to them because they’re generating their own power,” Price said.

Zoe Bettison, the Minister for Social Housing, discussed the reason they are installing these solar + storage systems in Housing Trust properties:

“We know that people in social housing can often struggle meeting their everyday needs and this initiative will take some pressure off their household budget,” she said.

A mammoth deal and step forward for South Australian solar – we’ll bring you more information as it becomes available!

Microgrid in Puerto Rico? Tesla Steps In.

In the wake of Hurricane Maria’s landing on Puerto Rico on September 20, the country has been almost completely without power and a majority of the 3.4million residents aren’t able to use fridges, air conditioning, or pump potable water. Enter the possibility of a Microgrid in Puerto Rico – Elon Musk’s Tesla have offered their support to the country by sending hundreds of their Powerwall energy storage batteries – with many already on the ground and more to come. They’re initially being sent to high priority locations such as hospitals which are currently using expensive and hefty gas-powered generators. 

Microgrid in Puerto Rico - Tesla
Tesla Microgrid in Puerto Rico? Electric use in PR before / after Hurricane Maria (source: Inhabitat.com)

Tesla Powerwalls and Puerto Rico

According to news sources such as Bloomberg and Engadget, Tesla is sending hundreds of the Powerwalls to Puerto Rico in an attempt to help shore up its shattered energy infrastructure. The Powerwalls will be paired with solar panels to generate energy while the country works on restoring its main grids. Some of the Powerwalls have already arrived in Puerto Rico and Tesla employees are on the ground assisting in the installation of required infrastructure. According to some sources, grid power won’t return to the entire island for another six months so they’re going to have to look at some options – which may include the full scale renewables – with small grids far more resilient than transmission lines and central grids. These microgrids could be connected to a central grid but also isolated if required. 

Renewable energy expert Tom Rogers told The Washington Post “You look at islands like Dominica, Anguilla, and other islands affected by the recent hurricanes, I’ve spoken to a couple of the utilities, and they say they would prefer to rebuild using distributed generation with storage, and just trying to reduce the amount of transmission lines. Because that’s where their energy systems fail. It’s having these overhead cables.”

Tesla Microgrid in Puerto Rico

After the initial Powerwalls being sent, there have been others talking about the much larger, industrial-size Tesla Powerpack grid scale storage solution and whether this could be an option for the commonwealth moving forwards. Clean Technica report that the island’s utility company, PREPA (Puerto Rico Electric Power Authority), has a massive $9 billion USD in debt to Wall Street and Puerto Rico itself is in debt to the tune of $123 billion (and $74b of them are in defaulted bonds currently in bankruptcy court). In short, the country is in serious financial strife and its grid is virtually worthless. Ricardo Ramos, the CE of PREPA, told CNN the island’s power infrastructure had been basically “destroyed”. 

There’s a possibility of just handing the grid over to its creditors and ‘start again’ – and this could perhaps be the impetus for Tesla to create microgrids across the country with its Powerpack batteries (they scale from 50kW up to 100MWh) – certainly a herculean task but who other than Elon Musk would take something like this on? 

Musk’s team are currently installing Tesla Powerpacks in South Australia under less critical circumstances but it’ll be an interesting litmus test to see if Tesla could roll something out on such a massive scale.