Improve building energy efficiency
In May 2021, MBIE publicly consulted on proposed Building Code changes that would make homes and buildings warmer, drier, healthier and more energy efficient. In November 2021, MBIE announced it is proceeding with changes to energy efficiency for housing and small buildings, energy efficiency for large buildings and energy efficiency for heating, ventilation and air conditioning (HVAC) systems in commercial buildings. Information on the changes for each building type is below.
The Building Code section H1 Energy Efficiency was amended to include new provisions for the minimum insulation requirements for housing, small and large buildings, and for heating, ventilation and air conditioning (HVAC) systems in commercial buildings.
Energy efficiency for housing and small buildings
Focusing on the level of insulation in Acceptable Solution H1/AS1 and Verification Method H1/VM1. Note that the new edition of H1/AS1 contain provisions to extend the transition period for new insulation in housing into 2023.
Acceptable Solution H1/AS1 [PDF, 3.3MB](external link) — Building Performance
Verification Method H1/VM1 [PDF, 2.8MB](external link) — Building Performance
Energy efficiency for large buildings
Focusing on the level of insulation in Acceptable Solution H1/AS2 and Verification H1/VM2, the new versions are now being used to show compliance with the Building Code.
Acceptable Solution H1/AS2 [PDF, 2.4](external link) — Building Performance
Verification H1/VM2 [PDF, 2.4MB](external link) — Building Performance
Energy efficiency for heating, ventilation and air conditioning (HVAC) systems in commercial buildings
Introducing the Verification Method H1/VM3 for the energy efficiency of HVAC system now being used to show compliance with the Building Code.
Verification Method H1/VM3 [PDF, 799MB] (external link)— Building Performance
Building for Climate Change programme
In addition, the Government has established the Building for Climate Change programme to deliver a step-change in energy efficiency for new and existing buildings. The programme intends to reduce emissions from buildings during their construction and operation, and ensure New Zealand’s buildings are resilient enough to withstand changing climate conditions. The programme will play a key role in the Building and Construction sector’s contribution to the Emissions Reduction Plan.
Building for climate change(external link)
Background: Why the review was conducted
In April 2018, the Minister of Energy and Resources commissioned an independent review into New Zealand’s electricity market. This was because electricity prices, especially for residential consumers, increased faster than inflation for many years, putting pressure on household budgets. In comparison, prices faced by commercial and industrial customers remained relatively flat.
Such reviews are not new. Since the 1970s, New Zealand has reviewed its electricity sector roughly every decade – each time substantial changes have been made to improve or correct the sector’s performance. In the 1980s and 1990s, the sector was privatised to improve commercial performance, and a light-handed regulatory regime was developed. By the 2000s, concerns about industry performance and self-governance arrangements resulted in further improvements being made, including developing new regulations and improving market competition to restrain retail prices to efficient levels.
However, the 2018-19 review was unique as it addressed the need for electricity prices to be fair and affordable, not just efficient or competitive. Another novel element was the review’s focus on the consumers’ point of view and their say in the direction of the sector.
This review also considered how to future-proof the sector and its governance structures to help ensure the electricity sector functions well during New Zealand’s transition away from carbon-based fuels – a consideration that will become increasingly important as electricity meets more of New Zealand’s energy needs, and as new electric technologies are adopted.