Australian Renewable Energy Storage Target Push Continues
Australia’s Climate Council says $42 billion of private investment and around 100,000 jobs in renewable energy could be created through the implementation of a Renewable Energy Storage Target (REST).
Representatives from the Climate Council, Smart Energy Council, Clean Energy Investor Group, Solar Citizens and Advanced Materials Battery Council will gather today in Canberra to lobby the Albanese Government on REST.
“Australia’s Federal and State Energy Ministers are in the process of designing a new mechanism to support the stability and reliability of Australia’s energy system in the years ahead,” says a joint statement. “A Renewable Energy Storage Target is a strong alternative to any model that would prop up expensive, unreliable coal and gas – the main drivers of recent energy price spikes for Australian homes and businesses.”
Renewable Energy Storage Acceleration Scheme
Late last month another coalition led by the Smart Energy Group called for a Renewable Energy Storage Acceleration Scheme and targets set for each state and territory; adding up to a National Large-scale Renewable Energy Storage Target.
“We need everything from batteries on wheels in electric vehicles to household battery systems to unlocking massive investment in large-scale energy storage projects through a Renewable Energy Storage Acceleration Scheme,” said Smart Energy Council CEO John Grimes.
The Scheme would involve a series of government tenders for large-scale renewable energy storage projects to meet forecast shortfalls in dispatchable generation and storage. A briefing note on how the Scheme would work is available here.
Hands Up If You’d Like A Home Battery Subsidy
I’m guessing quite a few hands have gone up.
Home batteries are a significant investment, and those hankering after a Tesla product in particular were likely disappointed to recently discover the price of Powerwall went up yet again; putting this popular home energy storage solution further out of reach. While there are a number of Powerwall alternatives that are cheaper, solar battery system pricing remains expensive regardless.
The Smart Energy Council acknowledges the need for batteries for all sorts of applications, but its Renewable Energy Storage Acceleration Scheme doesn’t address the home market.
Solar Citizens has gone into bat for the battler, last week calling on the Federal Government to expand the Small-scale Renewable Energy Scheme (SRES) – part of Australia’s Renewable Energy Target (RET) – to also provide a financial incentive for home battery storage. How much luck they’ll have there remains to be seen and I’m not aware of any positive murmurings from the Feds about it at this point in time.
Currently there are several state/territory- based schemes providing battery subsidies: the ACT (up to $3,500), Victoria (up to $3,500) and the Northern Territory (up to $6,000).
South Australia also had an incentive until July this year after the scheme was axed by the Malinauskas Government. Following the blackout event in SA on November 12 that stretched out for days for some and then more blackouts on the weekend (and into this morning) due to severe weather, no doubt some South Australians are again cursing that decision.
How the scheme would work.
(from Climate Action Network Australia, Smart Energy Council, Clean Energy Investor Group)
Renewable Energy Storage Acceleration Scheme Proposal
A rapid, targeted and cost-effective firming mechanism to accelerate deployment of utility scale storage in the National Electricity Market
Summary of the Proposal
The Australian Government, in partnership with State Governments, would undertake a series of tenders for large-scale renewable energy storage projects to meet forecast shortfalls in dispatchable generation and storage. Proponents would bid a floor price for the project’s net revenue over a defined life, enabling them to obtain low-cost financing generally not available today due to currently missing and perceived uncertainty in storage revenue streams.
On most occasions, the storage project would have net revenue above the floor, resulting in no payments by Governments to the storage project. The scheme would also contain claw back provisions whereby the storage projects would make return payments to government when their net revenues are high thereby reducing costs to the taxpayer.
Proponents will need to sign availability guarantees for projects.
This proposal delivers fast, proven and cost-effective renewable energy storage. Together with support for household, commercial and community renewable energy storage and a Renewable Energy Storage Target, the Renewable Energy Storage Acceleration Scheme provides a framework for delivering sufficient storage to accommodate 82% renewables by 2030.
Advantages of the Scheme
Building on the best features of successful State Government electricity market tendering processes, the Renewable Energy Storage Acceleration Scheme has the following advantages:
● Fast, proven and targeted – A simple auction scheme can be implemented much faster than other schemes. There are already valuable learnings, infrastructure and governance arrangements that can be leveraged to fast-track implementation of the scheme. Winners of the tenders will be able to quickly obtain project financing leading to rapid Final Investment Decisions (FID).
● Improved Energy Security – The scheme will accelerate more storage into the National Electricity Market (NEM), reducing the chances of market disruptions or supply shortages enabling more variable renewable energy to be installed while maintaining sufficient electricity supply. New battery storage systems could be installed and operating as soon as 18 months after awarding of the tender for well advanced projects.
● Cost Effective – Transparent electricity market tendering processes have historically been very competitive, resulting in excellent value for money and selection of the most efficient and well managed projects. There would be no payments from Governments to projects in average or good revenue years and reimbursement payments to Governments in very good years.
● Low Risk – While the net revenue floor will be high enough to enable rapid project financing, it will not be high enough to provide adequate returns to project owners. This will encourage project owners to manage the projects to maximise revenues well above the revenue floor. When projects earn revenues above a net revenue ceiling bid in the tender, reimbursement payments would be made to the Governments.
● Market Benefits – Each new storage system installed in a State will facilitate higher renewables installation and also reduce wholesale price volatility as batteries charge during periods of low pool prices and discharge during periods of high wholesale energy prices. Reducing wholesale price volatility will exert downward pressure on wholesale, and thereby retail electricity prices.
● Adaptable – Running a series of auctions over time creates an opportunity to adjust the scope to address emerging needs of the NEM within the required timeframes of those needs.
Proposed Design Features of the Renewable Energy Storage Acceleration Scheme
- State Governments, in collaboration with AEMO and the Federal Government, would set a Large-scale Renewable Energy Storage Target in gigawatts for each State and Territory, which would add up to a National Large-scale Renewable Energy Storage Target (LREST).
- AEMO would publish the level of operating, committed and likely storage projects which would be compared to the LREST for each State.
- If a shortfall was forecast within the next 3-4 years, a tendering process for additional storage would commence.
- It is suggested that State and Federal Governments share the cost of any payments, possibly 50/50%.
- An entity would be designated to run the tendering process; this could be the Clean Energy Regulator, the Clean Energy Finance Corporation, AEMO Services or another entity.
- The principal variable in the tendering process would be a Net Revenue Floor (such as $40/kW/year-$60/kW/year).
- Proponents would also bid a Net Revenue Ceiling above which 50% of the revenue would be returned to Governments to reimburse them for previous under floor payments thereby reducing the cost of the scheme.
- Proponents could make separate bids for different duration versions of the same project.
i. For example, a proponent could bid one Net Revenue Floor for a 2 hour battery and a higher Net Revenue Floor for a 4 hour version of the same battery project and Governments could decide which offer they preferred.
○ The projects would need to provide quick start, fast ramp rates and be zero- emissions.
3. The scheme would operate with quarterly settlements by comparing the Net Revenue the project received to the Net Revenue Floor.
- Net Revenue = FCAS revenue + Sale of Energy Exported – Cost of Energy for Charging.
- If the contracted floor price was, for example, $10/kW/quarter and the project earns, for example, $9/kW for that quarter, it would be topped-up by $1/kW for that quarter.
- If in the following quarter, the project earned $15/kW, no payments would be due.
- If in the following quarter, the project earned $40/kW, compared to a contracted ceiling of $30/kW, the project would reimburse the Government 50% x ($40 – $30/kW) = $5/kW (assuming the project had received under floor payments of at least this amount).To discuss this further, please contact Wayne Smith, External Affairs Manager Smart Energy Council, at email@example.com
25 October 2022
EVs with bidirectional (two-way) charging capability can be used to power a home, feed energy back into the electricity grid and even provide backup power in the event of a blackout or emergency. An EV is essentially a large battery on wheels, so bidirectional chargers can enable a vehicle to store cheap off-peak electricity or solar power to reduce household electricity costs. This emerging technology, known as vehicle-to-grid (V2G), could revolutionise the way our power grids operate, with the potential for tens of thousands of electric vehicles to supply power simultaneously during times of peak electricity demand. For those new to electric vehicle chargers, see our EV charging explained article.
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