Monday, May 2, 2016

The Dandaragan Wind Farms

The Dandaragan Wind Farms will consist of up to 151 x 2.1-3.4MW turbines which would result in a maximum total installed capacity of 513.4 MW. Each year these turbines would generate as much electricity as is used by approximately 305,000 Western Australian homes. Thousands of tonnes of carbon dioxide would be offset by replacing electricity generated via conventional, fossil fuel burning power stations.

The Dandaragan Wind Farms are comprised of two sites. The Waddi site would contain up to 57 wind turbines and it is located approximately 12km north west of Dandaragan. The Yandin site is approximately 4km south of Dandaragan and would have up to 94 wind turbines.

Once turbines are in operation they will be monitored remotely with maintenance personnel making periodic visits. Turbines are expected to have an operational life of at least 25 years. After this time it is likely the site will either be refurbished or decommissioned and returned to its previous state.

  • Number of turbines                         151       
  • Rating of turbines                           3.40       MW
  • Wind farm size                               513.40  MW
  • Predicted output                             1,682,022  MWhr p.a.
  • Average Households supplied       305,822
  • Carbon dioxide saved                    1,311,977  tonnes p.a.


All the calculations used to estimate annual wind farm output, the number of households it will supply and the CO2 emissions saved, are generic figures based upon the calculations below.

 1. Average Output

Wind Farm Capacity in MW x Capacity Factor (%) x Annual Hours (8760) = Wind Farm Output (gross yield in MWhr per year)

2. Households Supplied

Predicted Output / Average Electricity Consumption per Household p.a based on the following average consumption figures:

  • SA: 6.12 kWhr (Essential Services Commission of South Australia (2007) 2006/07 Annual Performance Report: Performance of South Australian Energy Retail Market) 
  • VIC: 5.533 kWhr (Department of Human Services (2007) Victorian Utility Consumption Household Survey 2007) 
  • WA: 5.5 kWhr (EPA 2007, State of the Environment Report Western Australia 2007.Western Australian Environment Protection Authority)

3. CO2 Emissions Avoided

Wind Farm Output x CO2 Savings per kWH = CO2 Emissions Avoided

Our minimum and maximum emissions figures used, in kilograms of CO2 emitted per MWh, were obtained from the Australian Government Department of Climate Change and Energy Efficiency (July, 2010) National Greenhouse Accounts (NGA) Factors.

 The process of developing, building and operating a wind farm project is very complex and requires careful consideration of all factors and interests involved.  The Wind Prospect strategy is focused on working in tandem with the community and the environment; to produce the most sensitive, efficient, and effective wind farm for the chosen site.

Each phase of the process requires the use of both in-house and external technical expertise to deliver the highest quality outcomes.  The pages in this section describe the typical processes involved in the development and construction of a wind farm.

We believe the approach adopted by Wind Prospect has resulted in our very high level of planning success over the past 10 years.  We expect to maintain this excellent track record for our current and future development sites.


There are a number of stages in the Development Process:

Stakeholder consultation is a very important part of the development process to ensure each project is both suitable and appropriate.  We consult with all the relevant affected parties early on in this process.  We commission a wide range of comprehensive studies that enable us to evaluate the potential of each site in terms of impact on ecology, landscape and visual amenity, noise, archaeology and other environmental factors.

Many people consider wind turbines to be elegant. They find the motion of the slow-turning blades to be peaceful and feel that wind turbines make a positive contribution to the landscape.  However, not everyone agrees with this perspective and as such we recognise that turbines are not suitable to all geographic locations.  We analyse  any visual concerns that arise through close liaison with communities, landowners and local authorities.
As part of the design process Wind Prospect conducts comprehensive studies using specialist software to design an optimum site layout.  Computer modeling techniques provide a realistic impression of the views that will be seen from various local vantage points.  These photo montages are the most accurate representation of how the wind farm will look to the human eye.  The final stage in this process is for a landscape analyst to evaluate any impact the turbines may have on the local community.

Ecology & Wildlife
Like many developments, a wind farm has the potential to affect local ecology through either behaviour change or habitat loss.  Detailed studies are undertaken to determine what flora and fauna is in the area and how this may be affected. We liaise closely with relevant State environmental regulators as well as relevant national bodies such as the Department of the Environment.  We only proceed with projects where we are satisfied that there will be no significant impact on the local ecology, or that any impact can be dealt with through mitigation measures such as creating extra habitat away from the wind turbines.

Archaeology & Cultural Heritage
The cultural significance of an area plays an important role in the development of our wind farm sites. We have always consulted extensively with indigenous groups around the world and will be continuing to do this in Australia.  Studies are also carried out to assess the potential effects of the wind farm on archaeological values including how these can be avoided or mitigated.

People who visit wind farms are often surprised at how quiet modern wind turbines are while in operation.  Appropriate turbine model selection and a thoughtful site layout design can ensure that sound levels at residences closest to the site will be minimal. We measure the existing background noise at the nearest properties and then calculate the additional noise, if any, from the turbines. There are strict guidelines that determine acceptable levels of noise at residential properties in Australia, and we ensure the project falls within these parameters.

TV & Radio Reception
We investigate any potential interference to local television and radio communication services.  In the unlikely event that interference does occur, there are a number of technical fix solutions that can be applied to remedy the problem.

In some cases the wind farm development will require a study based on aviation and/or tourism.  eg.  proximity to civil aviation flight paths and radar installations.

Sunday, May 1, 2016

Waddi Wind Farm & Solar Plant

Waddi Wind Farm & Solar Plant - proposed project

Trustpower are investigating the possibility of developing the Waddi Wind Fam and Solar Plant located approximately 15 kilometres north-west of the township of Dandaragan and approximately 150 kilometres north of Perth in the mid-west region of Western Australia’s wheat belt.


LOCATION:15 km north-west of Dandaragan
MAX CAPACITY 170MW (proposed)

Wind Prospect commenced development of the project in 2009 as one of two wind farm projects known collectively as the Dandaragan Wind Farm.
In October 2015 Trustpower Australia Holdings Pty Ltd purchased the Waddi Wind Farm project (the project located to the north-west of Dandaragan) from Wind Prospect.

The Waddi Wind Farm will be spread across 10,400 ha and and will consist of up to 57 turbines with and installed capacity of up to 170MW.

The Waddi Solar Plant would be located within the boundary of the approved Waddi Wind Farm. The project will include a number of arrays consisting of either static or tracking flat plate photovoltaic panels.
The arrays will cover an area up to approximately 150 hectares, with an installed capacity of up to 80MW. The ultimate size and output of the wind farm and solar plant projects will be dependent on the market and technology type selected.


  • Project Site: 10,400ha.
  • Wind Farm: Up to 57 wind turbines and hardstand areas.
  • Solar Arrays: Approximately 80MW of xed plate solar arrays over an area of up to 150 ha.
  • Employment: Employ over 150 people during construction and will require 6-10 full time staff during its predicted 25 year life span.
  • Investment: $500 million.

Environment and Community

Environmental Benefits:

  • Generate enough renewable energy to power 80,000 homes. 
  • Result in 350,000 tons of greenhouse gas savings
by offsetting traditional thermal generation (equivalent to removing 90,000 cars from our roads per annum). 
  • Small environmental footprint than comparative forms of generation. 
  • The land can be rehabilitated to its original condition at the end of the project when all above ground infrastructure is removed. 
  • Minimal impact on the productivity of traditional farming activities. 
  • Additional fire breaks and improved access roads for fire fighting. 
  • Offsetting of environmental impacts where they can’t be avoided with net environmental benefits. 
  • Additional energy supply to help meet the growing demands in Western Australia. 


We are a power company that believes in being involved in the communities where we operate and in the places where those communities live, work, bring up their children and run businesses.

Therefore, we implement a variety of initiatives to benefit communities in project areas.
We developed our Lend A Hand Foundation in New Zealand in 2004 and have since rolled out the concept to four project sites, including Snowtown in South Australia.

The Foundation assists small charitable organisations and individuals by giving them a hand when they need it most, through funding, mentoring and the provision of goods and services.

We have also developed Community Connect, an online space for voluntary and not-for-profit groups and organisations. It enables voluntary groups to promote their initiatives, connect with other volunteers and obtain ideas and inspiration through the discussion and resource sections.

We also run community awards and support a recognised anti-bullying initiative.

New Zealand residents frequently see Trustpower vehicles out and about, because instead of trading them in once they have reached trade-in point, we donate them to charitable groups.

Goods and services register

Trustpower is committed to using local labour whenever possible. As we progress towards this financial close we will be seeking expressions of interest from locals with expertise in a range of fields.

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