Welcome
Welcome to the Compressed Air Systems (CAS) Auditor Accreditation Scheme.
The CAS Auditors Accreditation Scheme is a mechanism through which best practice design and operation of compressed air systems can be established and maintained in New Zealand industry.
The Scheme is an initiative within the Energy Efficiency and Conservation Authority's Compressed Air Systems Best Practice Electricity Efficiency Programme.
The Energy Efficiency and Conservation Authority (EECA) encourages, supports and promotes energy efficiency, energy conservation, and the use of renewable sources of energy in New Zealand.
Details on this web-site will advise you on the following:
- How to become an Accredited CAS Auditor
- How to find an Accredited CAS Auditor
- Details of funding available for CAS Audits
- Resources on compressed air systems
- News / Events
The CAS Auditor Accreditation Scheme is administered by EMANZ (The Energy Management Association of New Zealand).
The Need for Action on Compressed Air
Compressed air is often considered industry's fourth "utility" (behind fuel, electricity and water) and is generally the most expensive industrial utility. New Zealand and international studies indicate that compressors offer high potential levels of savings (20% to 40% reduction in energy use). Inefficient and inappropriate use of compressed air cost businesses in wasted energy and money.
The New Zealand studies also showed a need to raise awareness of the potential for energy savings, and confirmed support for such an initiative from larger users of compressed air and other participants in the compressed air industry.
The uses of compressed air are many and varied as indeed are the sectors using it. From the food processing sector to the automotive sector, from the printing and textile sectors to the plastics sectors – all are using compressed air in some way.
Compressed Air Systems Electricity Efficiency Programme
The Compressed Air Systems Electricity Efficiency Programme is targeted at industrial compressed air systems which nationally consume over 1,000 GWh of electricity per annum. It is assessed that energy savings of between 20% and 40% could be secured if existing compressed air systems were operated and maintained up to world's best practice. Further savings are possible through investments in more efficient compressed air system technologies
The CAS Electricity Efficiency Programme has a number of components; to provide information and auditing support to the users of compressed air systems and to provide training services to the auditors. Where it is cost-effective to do so but there are true barriers to private investment, EECA may also offer financial incentives.
The programme was developed through the support of a Compressed Air Systems Stakeholder Group, which provided:
- commercial and technical advice concerning the design and implementation of the programme; and
- recommendations relating to the longer term ownership and maintenance of the programme.
Compressed Air Systems (CAS) are estimated to consume 1,400 GWh of electricity every year in New Zealand. Industrial sites with CAS capacity of 75kW or more (an estimated 500 sites) consume around 75% of that electricity usage. The remaining 25% of CAS electricity is consumed by an estimated 6,000 sites.
A pilot project at the Fonterra plant at Te Rapa resulted in 32% savings in compressed air system electricity use by adopting a ‘best practice CAS’ approach to the plant management. Operational improvements alone achieved a 24% saving.
Further details on the Fonterra Pilot Study may be found here.
CAS Auditor Accreditation Scheme
A ‘total system’ compressed air audit can identify cost effective actions to deliver significant electricity savings. The purpose of the CAS Auditor Accreditation Scheme is to:
- Provide a robust accreditation scheme that develops highly skilled CAS auditors who will have the confidence of compressed air system users; and
- Ensure the delivery and maintenance of high quality CAS auditing services and advice being to compressed air systems users who are thereby able to realize energy efficiency savings; and
- Provide monitoring of the ongoing performance of CAS auditors against a set of industry-accepted standards.
Contact Us
If you have any comments about this website or the Scheme in general please contact EMANZ.
The main contact for general queries is Connie Crookshanks. Alternatively, contact Connie on 027 472 8038.
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