The Energy Efficiency and Conservation Authority's role under the Energy Efficiency and Conservation Act 2000 includes preparing and administering an energy efficiency strategy for New Zealand. In 2001, the first five-year National Energy Efficiency and Conservation Strategy was released. When the Strategy was updated in October 2007, it was renamed the New Zealand Energy Efficiency and Conservation Strategy (NZEECS), and treated as a companion piece to a new, more general, Energy Strategy produced by the then Ministry of Economic Development for the Government. The current New Zealand Energy Efficiency and Conservation Strategy 2011 - 2016 was released simultaneously with the Energy Strategy. The current Energy Efficiency and Conservation Strategy's focus is on promoting energy efficiency, energy conservation and renewable energy. It is prepared in accordance with the Energy Efficiency and Conservation Act 2000 and is in force for a period of five years. In addition to an economy-wide target to continue to achieve a rate of energy intensity improvement of 1.3 percent per annum the Conservation Strategy sets out objectives for six sectors: Transport: a more energy-efficient transport system, with a greater diversity of fuels and alternative energy technologies Business: enhanced business growth and competitiveness resulting from energy intensity improvements Housing: warm, dry and energy-efficient homes with improved air quality to avoid ill-health and lost productivity Products: greater business and consumer uptake of energy-efficient products Electricity system: an efficient, renewable electricity system supporting New Zealand's global competitiveness Public sector: greater value for money from the public sector through increased energy efficiency. By law, there must always be a five-year national energy efficiency and conservation strategy. The current Strategy expires on 30 August 2016 and can be replaced or rolled over - the Minister of Energy and Resources has decided to replace the current NZEECS and to do this in conjunction with some work on specific energy targets.