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Australian Renewable Energy Agency looking to improve short-term wind and solar forecasting

Australian Renewable Energy Agency looking to improve short term wind and solar forecasting

The Australian Renewable Energy Agency (ARENA) is seeking
expressions of interest for projects to trial short-term forecasting from
large-scale wind and solar farms across Australia.
On behalf of the Australian Government, ARENA is committing
up to A$10 million funding to improve ‘5-minute ahead’ forecasts for wind and
solar farms operating in the National Electricity Market (NEM).
In partnership with the Australian Energy Market Operator (AEMO), ARENA is seeking to demonstrate wind
and solar farms can provide more accurate forecasts of their output into AEMO’s
central dispatch system. AEMO is responsible for operating Australia’s largest
gas and electricity markets and power systems, including the NEM, the
interconnected power system in Australia’s eastern and south-eastern seaboard
and the Wholesale Electricity Market (WEM) and power system in Western
Renewable energy sources such as wind and solar are
intermittent and the output varies depending on the weather and time of day. Integrating
these sources into electricity grids while balancing demand and supply requires
forecasting. At the moment, wind and solar farms can be disadvantaged if their
available output doesn’t match the central forecast. If the forecasts are too
low, wind and solar farms are restricted in how much electricity they can paid
to produce. If forecasts are too high, the wind or solar farm may be obliged to
pay for the cost of stabilising, which increases the price of electricity and
is ultimately passed on.
At present, AEMO is responsible for forecasting how much
electricity will be generated by wind and solar farms. As a part of this trial,
wind and solar farms will be able to submit their own forecasts to AEMO. This
will allow local measurements to be combined with AEMO’s modelling to improve
the overall accuracy.
ARENA is seeking proposals for projects that will deliver
‘5-minute ahead’ forecasts, explore the commercial benefits to wind and solar
farms of investing in forecasting technology and examine factors that affect
the accuracy of forecasts in different weather, operational conditions and
It is looking for expressions of interest in relation to
utility-scale wind and solar, including from generators, forecasting technology
companies and turbine and solar panel manufacturers. Proposals may include
multiple generators and forecasting technologies.
This initiative, which originated in ARENA’s A-Lab
innovation workshop last year, is expected to allow wind and solar farms to be
better integrated into the grid while simultaneously improving grid security
and reducing energy costs.
ARENA CEO Ivor Frischknecht said, “As more variable
renewables enter the market, we need to improve the accuracy of our short-term
forecasts so we can anticipate what will happen as a cloud passes over a solar
farm or if the winds change.”
“We are hoping this initiative – which brings together wind
and solar farms with forecasting technology companies and manufacturers – will
change how forecasts for variable renewable energy are used in the electricity
market,” Mr Frischknecht added.
AEMO Managing Director and CEO Audrey Zibelman said if
successful, this initiative would be another step forward in strategically
integrating renewable generation into the National Electricity Market.
Ms Zibelman said, “Accurate short-term forecasts are
essential for balancing supply and demand, and avoiding grid instability. If we
can more accurately predict demand and the output of all types of generation,
we expect this will reduce the need for additional frequency control services
in the future, which the market pays for.”
Expressions of Interest opened on 28 March 2018. Successful
applicants will be notified in June 2018 and invited to submit full
applications. Expressions of Interest will be open from 28 March 2018 until 9
May 2018 5pm AEST.

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