CHAPTER 1
INTRODUCTION
1.1
This introductory chapter covers the conduct of the inquiry and provides
some background to the technology and operation of wind farms and their
distribution in Australia.
Terms of reference
1.2
On 27 October 2010, the Senate referred the following matter to the
Committee for inquiry and report by 30 April 2011:
The social and economic impacts of rural wind farms, and in
particular:
(a) any adverse health effects for people living in close proximity to wind
farms;
(b)
concerns over the excessive noise and vibrations emitted by wind farms,
which are in close proximity to people’s homes;
(c)
the impact of rural wind farms on property values, employment
opportunities and farm income;
(d)
the interface between Commonwealth, state and local planning laws as they
pertain to wind farms; and
(e)
any other relevant matters.
The reporting date was subsequently changed to 23 June 2011.
Conduct of the inquiry
1.3
The inquiry was advertised in The Australian on 10 and 24
November 2010, on 8 December 2010 and again on 2 February 2011. The inquiry was
also advertised on the Internet. The committee received more than 1000
submissions, many letters and other documents, and had access to much published
information. Public hearings were held in Canberra on 25 March and 17 May, Ballarat
on 28 March, Melbourne on 29 March and Perth on 31 March 2011. The Committee
conducted site visits to the Waubra and Hepburn wind farms in Victoria on 28
March 2011.
1.4
The Committee thanks all those who made submissions, gave oral evidence
or in other ways assisted in the inquiry.
Structure of the report
1.5
The report is structured broadly to reflect the details of the
committee's terms of reference. Following a brief introduction, the Committee
considers noise and any adverse health effects in Chapter 2, planning laws in
Chapter 3 and property values, employment and farm income in Chapter 4.
Wind farms
1.6
A wind farm is a group of wind turbines in the same location used for
production of electric power. A large wind farm may consist of several hundred
individual wind turbines, and cover an extended area of hundreds of square kilometres,
but the land between the turbines may be used for agricultural or other
purposes. Wind farms may also be located offshore.[1]
1.7
In 2009 there were 85 Australian wind farms, 57 of which were in
Victoria, South Australia and Western Australia (nineteen in each state). The capacity
of all these installations amounted to 1703 MW, with 48 percent of total
capacity in South Australia.[2]
(In South Australia, the Australian Energy Market Operator expects that by
mid-2011, conventional energy sources will generate 3699 MW while 1150 MW will
be generated from wind.)[3]
More wind farm developments have been approved by the various state authorities
since 2009 and many more are planned.
1.8
According to an Australian Government study the wind energy industry has
been the fastest growing renewable energy source, largely because it is a
proven technology, and has relatively low operating costs and environmental
impacts.[4]
Turbines are increasing in size and may be up to 150 metres in diameter or, as
one witness expressed it, 'as high as from the flag on top of the Sydney
Harbour Bridge to the waterline'.[5]
Bigger turbines increase the swept area of the blades and proportionally
increase the wind energy captured. These turbines need to be further from each
other, with implications for the area needed for each farm. Some evidence to
the inquiry also suggested that the increased size of modern wind turbines
could potentially intensify any health problems related to noise and
vibrations.
Commonwealth responsibility
1.9
Planning and compliance issues for wind farms are matters for the state
governments, although the states have devolved some of these responsibilities
to local governments. Generally, proposals for wind farms of more than 30 MW capacity
are dealt with by the responsible state government minister. Planning and
compliance issues are dealt with in detail in Chapter 3.
1.10
Incentives for the development of renewable energy, which includes wind
farms, are provided by Commonwealth Government legislation, in particular the Renewable
Energy (Electricity) Act 2000, as amended, which creates a guaranteed
market for electricity generated from renewable sources. The Renewable Energy
Target (RET), which is established by the legislation, is for 20 percent of
Australia's electric energy to be generated from renewable resources by 2020.[6]
As noted earlier, wind, as the most advanced of the current renewable energy
technologies, is expected to contribute significantly to meeting the RET. It is
estimated that the share of wind energy in total electricity generation will
increase from 1.5 percent in 2007-2008 to 12.1 percent in 2029-30.[7]
The number of wind farms in Australia therefore can be expected to increase
dramatically in the next few years.
1.11
The Commonwealth also has responsibility for certain aspects of the
development of wind farms, such as air safety, and it may become involved in planning
processes under the provisions of the Environment Protection and
Biodiversity Conservation Act 1999. That Act is intended to protect and
manage nationally and internationally important flora, fauna, ecological
communities and heritage places, which are defined in the EPBC Act as matters
of national environmental significance.
1.12
In accordance with the Act, the responsible minister may declare the
proposed development of a wind farm to be a controlled action, which requires
that an environmental assessment be made of the impacts of the controlled
action. The minister then may or may not approve the controlled action under
the EPBC Act.
1.13
Additionally, if a proposal for a wind farm were to include development
on Crown Land, the provisions of the Commonwealth Native Title Act 1993
would apply.
1.14 Commonwealth Government agencies with research
interests in health and the sciences may contribute to understanding issues
related to the development of wind power and wind farms. CSIRO, the National
Health and Medical Research Council (NHMRC) and the National Acoustics
Laboratories (NAL) were able to assist the Committee by providing evidence to
the inquiry. The NHMRC produced a document in 2010 on wind turbines and health
and in June 2011 convened a scientific forum on wind farms and human health.[8]NAL
is the research division of Australian Hearing, a statutory authority under the
Commonwealth Department of Human Services. NAL undertakes scientific
investigations into hearing, hearing habilitation and rehabilitation and the
effects of noise on people, including the prevention of hearing loss.[9]
National Wind Farm Development
Guidelines
1.15 The Commonwealth Government is also involved in the
process for the development of wind farms through the Council of Australian
Governments (COAG). The Environment Protection and Heritage Council (EPHC) of COAG
has released draft National Wind Farm Development Guidelines 'to
complement existing planning and development processes, taking into
consideration that these are best practice guidelines, and are not mandatory'.[10]
Publication of the draft guidelines followed from an EPHC report on impediments
to responsible wind farm development, which was made in response to 'growing
community concerns'.[11]
The Commonwealth's role in the development of the guidelines is limited to the Department
of Climate Change and Energy Efficiency providing the chair of the relevant
intergovernmental working group.[12]
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