Management at Reliable Conveyor Belt (Reliable) in Newcastle realised they were using a lot of electricity but they weren’t sure where and when it was being used.
Proposed changes flowing from Council of Australian Government’s Trajectory for Low Energy Buildings project1 (the trajectory) are expected to reduce annual electricity consumption of new and refurbished residential and commercial premises by 36 TWh by 2050, compared to current standards.
Radevski Coolstores in the Goulburn Valley Victoria is a major supplier of apples and pears to Coles. It undertook a $1.15 million upgrade of 2 cool store systems, to allow the plant to operate on ammonia as a refrigerant, and to use condenser fan speed control (using variable speed drives) to further improve performance. The results were significant: one site recorded 60% reduction in its maximum electrical demand, and the upgrades will cut the company’s energy costs by 25%.
UnitingCare Community is a Queensland-based provider of community services. After energy audits were completed on a number of its 297 properties, the organisation began energy efficiency improvements as one of its first initiative. At Gipps Street, electricity consumption was high relative to floor area, until changes were made.
When the Multicultural Services Centre of WA conducted an energy audit, air conditioning showed up as a large cost for the community services organisation. Numerous savings have been made since implementing recommendations like: adjusting thermostats to 22°C in winter, and 20°C in summer; regular cleaning of vents, ducts and skylights; task specific cooling via ceiling fans or portable fans; replacing florescent lighting with light emitting diodes (LEDs).
Townsville’s Kath and Kin Association provides opportunities for people with psychiatric and physical disabilities, acquired brain injuries, and people with disabilities.
The St Ambrose Church (and its two attached houses) has been part of the Brunswick community for over 140 years. It recently: installed greywater and rainwater systems, insulating ceilings, replaced electric heating with 5 star gas central heating, upgraded lighting, and purchased 100% GreenPower, and has numerous other plans to continue making savings and reducing its environmental footprint.
To reduce costs at Drury Orchards in South Australia, the company installed a 24 kilowatt (kW) solar photovoltaic system. The system helps offset peak electricity use in a company which spends around 70,000 kilowatt hours (kWh) of electricity a year, at a cost of more than $18,000. The solar investment of $44,000 (including an $18,000 rebate) will help Drury save over $9,500 a year with a payback period of 4.5 years.
Generations Church, just north of Cairns, comprises a large hall, served by a large commercial chiller unit; a number of small rooms and offices (all with wall air conditioners) and an adjacent building with toilets, kitchen and a community room. An energy assessment show that for an investment of $2550, the top five opportunities to save could be implemented, bringing projected annual savings of $1430.
At the Footscray Community Arts Centre in Footscray, the site includes a heritage listed building and warehouse, and an outdoor amphitheatre and lawn. The site’s annual electricity spend it $27,000 (from an annual usage of 130,000 kWh) plus around $3000 in natural gas cost (from an annual usage of 200,000 MJ). An energy assessment identified this could be reduced by $11,000 per year (39% of annual spend) by implementing the suggested opportunities.