Energy Audits are the systematic analysis of energy use and consumption of audited objects, in order to assess current energy use and identify, quantify and report on opportunities for improved energy performance. [Source: NZS3598.1:2014]
We have completed over 130 energy audits across New Zealand. Recent projects have included:
- Auckland International Airport
- Auckland Hospital
- Wellington Hospital
- Te Papa Tongarewa
- Reserve Bank of New Zealand
In addition to commercial and institutional buildings, some of the other areas we've worked in:
- Timber processing (Rainbow Mountain, Laminex and Panpac)
- Food processing
Energy Audit report Type 1
Energy Audit report Type 2
We guarantee that the savings we identify will be more than our fees for the project. If not, we will refund our fees to the extent of the difference. So far every project has identified more than enough savings to meet the guarantee.
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The Heating, Ventilation and Air-Conditioning (HVAC) systems in commercial buildings usually offer the greatest potential for energy savings. Many, perhaps most, commercial buildings have oversized and poorly controlled HVAC systems, but because they aren't causing major comfort problems there is no attempt to make them perform better. Energy Solutions can identify and help implement major energy savings through a detailed analysis of the performance of the HVAC system.
We have extensive experience in HVAC control systems and the strategies for optimising their performance (in terms of both energy efficiency and service delivered). Our equipment and expertise allow us to do a detailed analysis of the energy use of the HVAC system and uncover the huge energy savings that often exist there.
HVAC Optimisation typically costs about $5/sq.m for large commercial buildings with computerised building management systems installed, but can depend greatly on the type of HVAC system and controls set-up. This kind of audit is more sophisticated and detailed than a standard energy audit and therefore costs more than an energy audit. However the savings that are identified usually mean that the investment is paid back extremely quickly.
Who needs HVAC Optimisation?
HVAC Optimisation is only suited to some buildings. For the outcomes to be most effective it needs to be a relatively large building with a substantial HVAC system. The more energy used by the HVAC system, the greater the savings are likely to be. If a basic energy audit has been completed first it should mean the simple energy saving measures have been identified and implemented. The energy audit will assist in establishing a basic understanding of the operation of the HVAC system. This provides the platform from which to start the more in-depth analysis of its performance.
The performance will be much easier to monitor, and energy savings much easier to achieve, if the organisation has an automated system for adjusting the controls of the HVAC system usually called a Building Management System (BMS).