An assessment of P. Savio & Co. (Savios) pack house and cold storage showed where energy use and costs could be reduced. Savios facility in Pozieres Queensland produces and packs approximately 4000 tonnes of apples per annum. It is a large facility with 14 cold storage rooms controlled by a refrigeration system that utilises 3 large ammonia compressors ranging from 22 kilowatt (kW) to 37kW in size. From May 2013 to February 2014 the pack house consumed just over 435,000 kilowatt hours (kWh) of electricity at a cost of almost $95,000 (excluding GST).
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.
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).
Mercy Services provides in home and community support to various sectors of the community. Environmental audits have spurred the organisation to make changes leading to a 16% reduction in gas usage and 23% in electricity usage (23,000 kWh) over a 5 year period.
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.