The Australian government is reviewing our electricity
market to make sure it can provide secure and reliable power in a rapidly
changing world. Faced with the rise of renewable energy and limits on carbon
pollution, The Conversation has asked experts what
kind of future awaits the grid.
The
Finkel review of the National Electricity Market is an opportunity to
consider how Australia can transition its electricity system to be less
carbon-intensive.
Germany’s energy transition is often held up as an
incredible success story. Starting from a sector relying predominantly on
fossil fuels and nuclear energy in the 1990s, renewable
energy now provides about 30% of Germany’s electricity.
Germany is on track to achieve its 80% renewable target by
2050. This transformation has been the result of a range of policy measures.
The depth and breadth of these legal and regulatory reforms
can provide valuable lessons for Australia.
Strong policy
Energy policy and climate policy have been expressly
integrated in Germany since 2007. The government’s Energy
Concept sets out Germany’s energy policy until 2050 with a strong
focus on transforming the energy system.
It contains short, medium, and long-term targets for
reducing greenhouse gases, increasing renewable energy, and improving energy
efficiency in consumption, the building and transport sectors. While
target-setting in a policy document may seem no more than a political gesture,
it shows ambition and leads to political pressure for action. The policy
targets for renewable energy are also binding as objectives in the German
Renewable Energy Sources Act.
Notably, German legislation for the electricity industry,
the Electricity Industry Act 2005, picks up on the ambition of transforming the
energy system. It provides that electricity supply should not only be
“cost-effective, consumer friendly and efficient”, but also “environmentally
compatible” and “increasingly generated from renewable sources”. While the
reference to environmental compatibility was already contained in the 1998 law,
the express reference to renewables was added in 2011.
Australia, in contrast, continues to keep climate and energy
policy separate. The National
Electricity Objective remains narrowly-confined to achieving the
reliable supply in an efficient way. Overall, Australia lacks long-term target
setting, which stymies the necessary planning.
Supporting generators
Germany’s generous feed-in-tariffs (FITs) for renewable
energy have been a major driver of transformation since they were first
introduced in 1990. The FITs were set separately for each generation source. As
a result they have funded a diverse range of renewable sources.
They also enabled the emergence of small
and medium-sized renewable generators, which greatly reduced the political
power of the big “gentailers” (generators and electricity retailers owned by
the same companies).
Twenty-year payback periods and guaranteed dispatch for
renewable energy made the FIT a major driver in Germany’s electricity
transformation. They have also been a very costly
way of supporting renewables.
With renewable energy now maturing, Germany is moving to
increased market exposure for renewable energy through reverse
auctions similar to mechanisms
employed in the Australian Capital Territory.
The Australian Renewable Energy Target (RET) and state-based
FITs have predominantly supported wind and rooftop solar. However, both are
hampered by the lack of ambitious and long-term targets and considerable policy
insecurity. Reverse auction schemes may provide a way forward to efficient
support for a diverse range of renewables.
Transforming networks
A crucial part of Germany’s energy reforms is the focus on
making networks more renewable-energy friendly. Germany’s renewable energy act
requires network businesses (the owners of the poles and wires) to prioritise
connecting renewable energy, and upgrade infrastructure where needed. This
investment is overseen by the regulator.
No such mechanism for network investment to enable renewable
energy exists in Australian network regulation.
German regulation now considers the whole system to
strategically update electricity networks. This includes a nationwide and
binding planning regime and investment into north-south interconnection. This
is to help absorb the massive investment in wind generation in the north.
Network constraints are a major barrier to a 100% renewables
future in Australia. Different modelling exercises for large amounts of
renewable energy have been done by Beyond Zero Emissions or
the Australian
Energy Market Operator. Achieving these scenarios would require strategic
and binding network planning across the whole of the NEM.
The Australian Energy Market Operator provides information
to support efficient network planning, but actual investment decisions are in
the hand of the network businesses. The network businesses continue to operate
within each of the states. They invest in networks if necessary to guarantee
reliable electricity supply.
There are no incentives for “greening” the network and
strategically planning beyond state borders in the current regulatory
framework.
Lessons for Australia
The German example is by no means a blueprint for Australia.
Australia has different natural resources, existing network and generation
infrastructure and the lack of neighbouring countries to connect to.
We can see though that a single instrument, be it a RET,
Direct Action or a carbon price, will not be enough to enable a transformation.
Energy transitions need reform across the sector. This
starts with a high level setting of ambitious, binding and long-term targets
for emissions reductions and renewable energy.
It requires not only mechanisms to support generators
financially, but also targeted regulation to adapt electricity networks to
enable more renewables.
Reform in Germany is ongoing. There is now an impressive
amount of legislation and amending legislation that deals with
different aspects of the transition.
Crucially, the German government has shown willingness to go
back and adapt policy instruments to changing circumstances or to address
unintended consequences. Yet the overall commitment to the energy transition
remains steady.
The terms of reference for the Finkel review recognise the
need to integrate energy and climate policy in Australia. Hopefully it can take
a more holistic view of the reforms necessary for decarbonisation of the
industry.
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