Contribution to Government's Policies and Objectives
As stated above, the proposed Taharoa wind farm development contributes to the government's stated objectives for the energy sector (energy efficiency and security of supply with an increasing focus on renewables) and is consistent with the principles for sustainable development.
Security of Supply
Ensuring security of electricity supply is a critical issue for all New Zealanders and for the government. There are two aspects to security of supply. Firstly, it is imperative to minimise the risk associated with dry years and secondly to ensure that New Zealand has the generation capacity over the long term to meet the projected growth in energy demand.
Dry Year Risk
Heavy reliance on hydro-generated electricity leaves New Zealand vulnerable to the effects of dry years. 2001 was very dry in the South Island hydro catchments and 2003 was similarly severe, necessitating public electricity conservation campaigns. Dry years highlight the dependence of both consumers and industry on energy as a key element of infrastructure and, consequently, how essential security of supply is.
One of the considerable advantages of electricity generated by wind is that supply is not dependent on rainfall. The Taharoa wind farm could help ensure continued electricity supply for both New Zealand consumers and industry during dry periods.
Growth in Energy Demand
A further aspect of security of supply is ensuring that New Zealand has the generation capacity to meet the forecasted growth in energy demand. The most recent Energy Outlook provided by the Ministry of Economic Development projects that the composition of New Zealand's energy supply and demand will change as the demand for energy increases, the Maui gas field declines and new technologies for the production, delivery and use of energy become more economically viable. It should be noted that several developments since 2003 mean that some of the Outlook's predictions, particularly for the supply side, are dated. In particular, the Outlook included Project Aqua, which would have delayed the need for more generation. Since the Outlook's publication, Meridian Energy Limited has announced that Project Aqua will not proceed. In addition, since 2003 assumptions on the cost of gas have increased. New thermal generation now appears less rather than more likely compared with the outlook prepared in 2003. This is likely to increase the need for other generation options to meet demand.
The Energy Outlook considers a range of scenarios, all of which predict increased electricity demand, ranging from an average of 1.2 percent per annum to 1.8 percent per annum over the period to 2025.4 There is some evidence to suggest that in the shorter term, increases in demand may be higher than these figures. Analysis of Grid Exit point data from 1999 indicates that electricity demand is currently increasing in the range of 2 to 2.5 percent on average per annum.
It is important that, as the means become available, New Zealand undertakes the transition to renewable energy sources to ensure that we have the capacity to accommodate the growth in demand and to compensate for the likely decline in the availability of indigenous gas. The Taharoa wind farm would contribute to the increased generation capacity required to satisfy demand while at the same time reducing New Zealand's dependence on non-renewable energy sources.
Sustainable Development Programme of Action for Energy
The Sustainable Development Programme of Action is one of the Government's major over arching documents designed to guide and underpin policy development. Energy has been identified as one of the target areas for sustainable development because of its correlation to economic growth, potential environmental impact, and because both consumers and businesses are heavily reliant on its supply.
The major objective of the programme of action for energy is to ensure continued delivery of energy services to New Zealanders. It acknowledges that renewable energy sources, such as wind power, will become increasingly important in providing security of supply and in mitigating harmful effects that energy use can have on the environment.
A sustainable energy discussion document, which establishes a policy framework within which energy choices can be considered going forward, was released on the 27th of October 2004. The document states that sustainable energy must be:
- reliable and resilient;
- environmentally responsible; and
- efficiently and fairly priced.
There are a number of specific energy and energy and energy-related policies and strategies that contribute to sustainable energy objectives, including the National Energy Efficiency and Conservation Strategy, the climate change initiatives and the Government Policy Statement on Electricity Governance. The Taharoa wind farm proposal is consistent with the actions outlined in these documents.5
National Energy Efficiency and Conservation Strategy
The National Energy Efficiency and Conservation Strategy (NEECS) is the government's primary means to achieve outcomes sought in the sustainable development programme of action. The purpose of the NEECS is to facilitate the move towards a sustainable energy future for New Zealand by promoting energy efficiency, conservation, and a transition to the use of renewable energy sources.
The NEECS identifies two key policy directions that support New Zealand's movement towards a sustainable energy economy.
- Ongoing improvement in our energy efficiency
Target: By 2012, energy efficiency throughout the economy will improve by at least 20 percent. This target is equivalent to a continual improvement rate of two percent per annum to 2012.
- Progressive transition to renewable sources of energy
Target: By 2012, renewable energy sources will generate an additional 30 PJ of energy above 2000 levels. In 2000, renewable energy sources provided 133.5 PJ, or 29% of consumer energy. The target means that by 2012, renewable sources should generate a minimum of 163.5 PJ of consumer energy, which would equate to approximately a 30-35% market share.
It is estimated that a wind farm development, like the Taharoa wind farm, could provide up to 262.8 million kilowatt hours of electricity a year, or 0.95 petajoules, which is approximately 3% of the renewable target.
Government Policy Statement on Electricity Governance
The Government's overall objective for the electricity industry is to ensure that electricity is delivered in an efficient, fair, reliable and environmentally sustainable manner to all classes of consumer.
The government has identified a number of desired outcomes consistent with the above objective. The Taharoa wind farm would particularly contribute to achieving the following outcomes:
- the electricity sector contributes to achieving the government's climate change objectives by minimising hydro spill, efficiently managing transmission losses and constraints, promoting demand-side participation and energy efficiency and removing barriers to investment in new generation technologies, renewables and distributed generation; and
- risks relating to security of supply are properly managed.
Resource Management (Energy and Climate Change) Amendment Act 2004
The Resource Management (Energy and Climate Change) Amendment Act 2004 has recently been passed by Parliament. It seeks greater alignment between local government plans and national energy objectives outlined in the NEECS and climate change policies, and aims to ensure that councils consider the contribution their regions can make to meeting New Zealand's commitments under the Kyoto Protocol.
Specifically the Act has amended section 7 (other matters) of the RMA to require decision-makers to have particular regard to the efficient use of energy, the effects of climate change, and the benefits associated with the use and development of renewable sources of energy.
4. The Ministry of Economic Development requests that the consent authority make the following decision:
Approve the application for land use consent.
5. The Ministry of Economic Development may wish to be heard in support of its submission, if any clarification of its position is required.
Back to Top