Hornsdale Power Reserve saves $8.9m in 6months

Hornsdale Power Reserve – also known as the Tesla South Australia battery, the 129MWh solar/energy storage battery has saved the state $8.9m in six months, according to Renew Economy and their analysis of spot market pricing in 2018.

Hornsdale Power Reserve

Hornsdale Power Reserve
Hornsdale Power Reserve (source: hornsdalepowereserve.com.au)

The cost of the Hornsdale Power Reserve hasn’t been made public, but at ~$800 per installed kWh the cost comes out to around $100m (with around $50m paid by the government), which fits the whispers we’re hearing around the traps.

The partnership between Tesla and South Australia was inked in July last year as Elon Musk and then-Premier Jay Weatherill decided on Neoen’s Hornsdale wind farm as an installation spot. The Tesla Battery was then completed on November 24, ahead of its December 1 operation deadline (Musk made a bet with Weatherill/South Australia that Tesla would install the Powerpack batteries by December 1 or the project would be free).

According to an analysis undertaken by RenewEconomy and investigated further by Clean Technica, The battery saved $5.7m in its second quarter of operation. It bought power at an average price of $79/MWh and sells it at $191/MWh (a figure somewhat distorted by a very power-hungry January – with that month removed the price goes down to $141/MWh). The estimated savings for the full 2018 are expected to be around $18m. 

It’s important to note that the battery is still trading 30MW (of its total 100MW) of capacity so there is space to expand operations should the government be so inclined. 

If you’d like to read a more detailed account of how much money the Hornsdale Power Reserve has saved South Australia in 2018 click here to read Stephen Parker and Bruce Mountain of the Victoria Energy Policy Centre investigate the economics of energy generation/storage.

If you’d like to see more stats on how the HPR is going, price-wise – there’s a rolling 72 hour graph of each battery charge/discharge with spot price data available via this link.

 

 

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Hydrogen energy storage in French Guiana

Hydrogen energy storage – French hydrogen specialist HDF Energy have announced their  Centrale électrique de l’Ouest guyanais (CEOG) project, which will be one of the world’s biggest solar-plus-storage power plants. The $90m USD plant is expected to generate around 50 GWh per year and will store energy using hydrogen instead of the usual lithium-ion.

Hydrogen energy storage – Centrale électrique de l’Ouest guyanais in French Guiana

Hydrogen energy storage - Centrale électrique de l’Ouest guyanais in French Guiana
Hydrogen energy storage – Centrale électrique de l’Ouest guyanais in French Guiana (source: hdf-energy.com)

With an equivalent 140 MWh of energy stored, CEOG will be the biggest power plant worldwide storing renewable energy using hydrogen.  

The world’s current largest storage project, which was,developed by Tesla and Neoen in South Australia at the Hornsdale Power Reserve, has a slightly lower size – 129 MWh. It uses lithium-ion technology rather than Hydrogen. Neoen have also looked into alternative methods of energy storage, however – they are currently in the middle of building an “Electrolyser” Hydrogen Superhub at Crystal Brook in South Australia.

Hydrogen energy storage technology

According to the manufacturer HDF, the hydrogen energy storage tech has a number of benefits over lithium-ion, such as enabling the storage of energy for long periods of time with minimal loss. It’s a very simple process to store the energy as hydrogen – you just need an electrolyzer, storage tanks, and a fuel cell. 

Firstly the electrolyzer separates hydrogen and oxygen from a water molecule. The resultant hydrogen is then pressurised and stored in tanks. In the fuel cell the hydrogen is combined with oxygen, which then allows the production of electricity and steam. 

Hydrogen has been suffering a tough time of it as late as the efficiency is quite difficult to improve – typical ranges are from 75-80%, according to PV Magazine (click the link to read a fantastic, in-depth article about the future of storing energy as hydrogen). Further losses of between 5-35% result from compression and cooling of the molecular hydrogen. Even for on-site use or with a direct feed into the gas network, you’ll see conversion efficiency of around 70%. 

We need to continue the research to see if the efficiency of hydrogen can be improved and it’ll be very interesting to see what the numbers are from both the French Guiana project and the superhub at Crystal Brook. We’ll keep you posted! 

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Western Downs green power hub council approval.

The Western Downs green power hub planned by French renewable giant Neoen has received council approval for a solar farm of size up to 500MW. This impressive project promises to bring  North Queensland solar jobs and continue the large-scale solar revolution in Queensland and Australia.

The Western Downs green power hub

The Western Downs green power hub
The Western Downs green power hub proposed location (source: westerndownsgreenpowerhub.com.au)

The Western Downs green power hub will be located 22km south of Chinchilla and 62km north west of Dalby, according to RenewEconomy. No word on the specifics of the gear they will use, but a huge 1500 hectares of ground mounted solar panels will feed two hectares of battery energy storage. This is going to be a gigantic undertaking.

According to the website for the green power hub, they’ll produce around 1.05MWh (million megawatt hours) per year.

“A combination of an ambitious Queensland Renewable Energy Target and a proactive government to meet those targets provide highly favourable conditions for renewable energy projects in the State,” Neoen says on the website.

“Consequently, the company will expedite the development of Western Downs Green Power Hub, as well as several other projects in Queensland.”

Construction was initially slated to commence in Q3 this year but it now looks like mid a 2019 start date will be more likely, according to the website.

“Construction is expected to start mid 2019 providing employment opportunities for the region.”

An article from the Chronicle in September last year (when it was being touted as a 250MW solar plant) noted that the consturction phase of the project will generate up to 300 solar jobs and between two to four during regular usage.

Neoen have been responsible for a number of huge projects across Australia recently:

 

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Tesla Battery Power in Victoria – Powerpack

Tesla Battery Power in Victoria will be installed in regional Victoria this year, in time for the 2018/19 summer. The Turnbull government has committed up to $25m to Victoria’s first foray into large-scale, grid-connected batteries.

Tesla Battery Power in Victoria

Tesla Battery Power in Victoria - Tesla Powerpack
Tesla Battery Power in Victoria – Tesla Powerpack (source: tesla.com)

The Age is reporting that ARENA (the Australian Renewable Energy Agency) and the Turnbull government will contribute $25m to the $50m project, which will be located in Western Victoria. The area has been identified as having a ‘vulnerable’ energy transmission network and will benefit immensely from the project. The other $25m of funding will come from a consoria led by Spotless Sustainability Services, according to PV Tech.

The batteries will, similar to the South Australia Tesla battery plant, use Tesla’s lithium ion Powerpacks, but in slightly different configurations and with separate manufacturers. 

There will be two separate batteries – 

  1. A 25MW/50MWh Powerpack solar battery in Kerrang, supplied by Tesla, owned by Edify Energy and Wirsol, and connected to the Gannawarra solar farm in north-west Victoria.
  2. A 30MW/30MWh grid-connected Powerpack in Ballarat, supplied by global energy storage giant Fluence (a conglomeration of Siemens and AES), owned by AusNet and and built at a nearby station in Warrenheip. 

Both batteries will be operated by EnergyAustralia and a PPA (power purchase agreement) has already been signed. 

“ARENA is excited to be demonstrating the capabilities that these new batteries will provide in securing reliable electricity for western Victoria and to facilitate the Victoria’s transition to renewable energy,” ARENA’s Ivor Frischknecht said in a statement.

Victoria has a RET (renewable energy target) of 25% by 2020 and 40% by 2025. 

Minister Josh Frydenberg said: “Storage has been the missing piece of the energy jigsaw for a long time. Whether it’s Snowy 2.0 in New South Wales and Victoria, the Battery of the Nation projects in Tasmania or various initiatives, including a 30MW battery, in South Australia, we are expanding, exploring and funding energy storage right across the country.”

Back in January we wrote about the Bulgana Green Power Hub – a 194MW wind farm and a 20MW / 35MWh battery storage facility which will be built by French renewable energy developer Neoen separately to the Gannawarra solar farm Tesla battery or the Ballarat terminal station Powerpack. So there’s plenty on the horizon for energy storage in Victoria – it’ll be great to see how this affects some of the weaker parts of regional Victoria as it’s already had a fantastic effect in South Australia. 

 

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“Electrolyser” Hydrogen Superhub at Crystal Brook

A $25m ‘Hydrogen Superhub’ will be built by French renewable giant Neoen in Crystal Brook, South Australia. The state government has committed $25m in grants and loans to Neoen to finalise plans and commence construction on the superhub. It still requires development approvals but looks like the project will go ahead. This would be the largest hydrogen plant in the world. 

Hydrogen Superhub at Crystal Brook

Hydrogen Superhub at Crystal Brook
Hydrogen Superhub –
a hydrogen atom with size of central proton shown (source: wikipedia.org)

The 50MW electrolyser facility on wind and solar farm at Crystal Brook would produce up to 400MW of solar and wind power each day, which would then be used to power the hydrogen electrolyser which would create up to 20,000kg of hydrogen daily, according to the ABC.

Tom Koutsantonis, the South Australian Energy Minister discussed SA’s plans with regards to hydrogen production and potential export:

“Our Hydrogen Roadmap has laid the groundwork for South Australia to become a world leader in the emerging hydrogen production industry, and to benefit from the economic opportunities likely to flow from it,” he said.

“More renewable energy means cheaper power, and I’m pleased the State Government can partner with Neoen to once again develop a world-leading renewable energy and storage project following the construction of the Tesla battery at Jamestown.”

MD of Neoen’s operations in Australia, Franck Woitiez, discussed the possibility of exporting the hydrogen intrastate and even into different countries:

“It has the potential to reach beyond our electricity grids, and supply South Australia’s locally produced clean energy to other states and to our nearby trading partners,” he said.

The Flinders News report that the Hydrogen Superhub will create 260 construction jobs, 40 ongoing positions and at least $600 million in Neoen investments. They also note that the Renewable Technology Fund have given grants to three other hydrogen projects:

 

 

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