https://www.solarmarket.com.au/nsw-no-more-power-bill-shock/ Victoria’s renewables target joins an impressive shift towards clean energy | Solar Market

Victoria’s renewables target joins an impressive shift towards clean energy

 

The Victorian Labor government has announced an “ambitious and achievable” Victorian Renewable Energy Target (VRET). This target will commit the state to generating 25% of its electricity from renewable energy by 2020, and 40% by 2025.

While details of the VRET are yet to be fully fleshed out, it is set to be based on a similar mechanism to the scheme used in the Australian Capital Territory (ACT), which has managed to sidestep the uncertainty that has plagued the renewables industry in recent years. The ACT deputy chief minister, Simon Corbell, called Victoria’s announcement on Wednesday “a game-changer”.

In fact a key motivation identified by the Victorian energy minister, Lily D’Ambrosio, was “restoring the confidence needed to invest”.

National tally

The federal Renewable Energy Target (RET) was reduced by 20% following the Warburton Review in 2014. Since then, state and territory governments have announced their own targets to support the industry.

Earlier this year, the ACT announced it would bring forward previous commitments. It is now aiming to meet 100% of its electricity needs by 2020.

In 2014, South Australia announced a 50% target by 2025. More recently, Queensland committed to generating 50% of its energy from renewable sources by 2030.

Based on forecasting by the Australian Electricity Market Operator, these commitments add up to a considerable expansion of renewable energy. In total, these commitments represent 56 terawatt hours (TWh) each year, above baseline generation. Baseline generation is renewable generation that existed before 1997, almost exclusively hydro power.

Comparison of national renewable energy target and state renewable energy targets.

The remaining states already have renewable generation and these facilities presumably won’t be torn down. So even assuming that these states don’t build a single new project, in combination with the targets, Australia is headed towards a total of 61TWh above the baseline.

This compares to the current national target of 33TWh. If the states fulfil their commitments, they will deliver almost twice as much renewable generation as the national RET requires.

If we add baseline hydro back into the equation, total renewable energy generation in Australia is set to be at least 77TWh by 2030. Depending on how electricity demand changes, and how rooftop solar is included, Australia is on track to meet 30-35% of its power demand from renewables by 2030.

What does the target mean for coal?

Victoria has always been a major exporter of electricity in the National Electricity Market. In 2014-15, it generated more than 55TWh of electricity and exported over 8TWh. Generally, Victoria exports to South Australia, New South Wales and Tasmania (although Tasmania’s flows have been more interesting in recent times).

It is unlikely that Victoria will substantially increase exports. Indeed, it has limited ability to do so. The South Australian government recently announced funding for a study into new interconnection for South Australia to import power when required, and export more renewable energy to other markets.

Consequently, such a significant increase in renewable generation in Victoria – expected to be in the vicinity of 5,400 megawatts – will have dramatic implications for the state’s existing power stations.

An increase in market share of renewables, from roughly 14% today to 40% in 2025, will necessarily come at the expense of market share for existing power stations. And in Victoria that means brown coal, Australia’s most carbon-intensive power source.

The question now is can the brown coal generators collectively survive such a reduction in market share? And if they can’t, who drops out, and when? Or perhaps brown coal can be progressively phased out without too much pain.

This is, however, good news for Australia’s national climate change mitigation commitments. At average Victorian emissions intensity, by the time the 2025 Victorian target is fulfilled, the new renewable generation in Victoria would be avoiding the emission of some 18 million tonnes of CO₂ per year.

National policy implications

At the national level, several different policies and pathways have emerged through the election campaign. These includes a national 50% renewable energy target, an emissions trading scheme, a brown coal exit plan and potential modifications to the government’s cap on emissions (known as the safeguard mechanism).

Whatever emerges at the federal level, the Victorian scheme is well adapted to future changes to both the energy market and energy policy developments. Indeed, it is expressly designed to complement national schemes in the long term, and to provide certainty and confidence for investors in the short term.

In response to the VRET, the Business Council of Australia has called for climate policies that are “integrated with broader energy policy”. A decade of policy uncertainty and toxic political debate has thus far prevented this from occurring.

As the Grattan Institute reported earlier this year: “An economy-wide carbon price remains the ideal climate policy. But pragmatism and urgency demand a practical, next-best approach.”

Given the popular support for renewable energy, perhaps this policy is actually such a pragmatic approach.

 

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Understanding Batteries

Off-Grid Systems

For some households a battery system can be of great benefit and minimise a home’s reliance on the grid. However, it’s important to understand for a battery to be useful your solar system needs to be generating excess energy for the battery to store, which you can then use at night or when the sun is not out.

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  4. Battery Management System (BMS)

    An electronic ‘smart’ system that gathers data and manages the battery ensuring it does not overload or operate outside of its safe functioning zone..

  5. Inverter

    Battery systems require their own inverter if your solar system does not have a hybrid inverter.

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    Length of time or cycles the battery system is under guarantee.

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