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.
When CatholicCare Social Services in Parramatta looked at the results of an energy assessment, it was obvious there was potential to save money. The top 5 opportunities for change would cost $12,000 to implement, but save $3000 a year. The organisation has already implemented lighting sensors and timers, and is planning to replace its HVAC Chiller units.
As the winemakers at McLaren Vintners well know, energy is used at every step of the wine making process. Refrigeration is a big energy consumer, making insulation a crucial component in saving both money and energy. An audit found that if McLaren Vintners insulated all of its tanks (currently, 56% of 202 tanks are insulated), they could save over $45,000 a year on their annual electricity costs. The payback period on the outlay is only 4.5 years.
Downs Aluminium Casting is a small, family owned and operated non-ferrous foundry located in Toowoomba, Queensland. The company produces aluminium castings for the construction, power and marine industries. In 2013 it installed a 27kW solar PV system. An audit shows other improvements – including by installing a variable speed drive to the dust extraction system - could improve the company’s energy efficiency.
Dobbie Dico is a privately owned casting foundry in Perth specialising in manufacturing high quality ferrous and non-ferrous valves for the civil water industry, as well as castings for the rail and resource sectors. This case study shows how energy efficiency improvements and techniques such as sub-metering could bring improvements to the company’s energy management capacity.
ABC Castings is a privately owned non-ferrous casting foundry located in Sydney’s Riverwood. It supplies castings to niche markets in mining and rail. Energy assessments showed savings of over 50% could be made by retrofitting existing lighting with light emitting diodes (LEDs) or induction fittings. Not only would this save on energy, but the change would reduce waste, and provide better directional lighting for focused jobs. Installing skylights was also shown to save up to 30% on lighting costs.
When 2 Victorian fruit packing houses (Geoff Thompson’s and Montague’s) conducted energy audits, each found there was high potential for energy savings through the optimisation of voltage power. While the initial investment was between $125,000-285,000, the savings were significant ($54,000-$58,000 a year), and the payback period short – just 2.2 to 5.2 years.
At Victoria’s Sunfruit Orchards, 3 of its 4 pumping stations represent 25% of the business’s total electricity consumption. An audit showed that installing a variable speed drive onto the irrigation motor in the orchard, at a one-off capital cost of $3700 would save $1510 a year with a payback period of 2.5 years.
The ‘Watts in Your Business’ project conducted by Apple and Pear Australia Ltd completed energy audits of 30 packhouses and orchards Australia-wide. This fact sheet shows how refrigeration changes can cut energy use and save money.
The ‘Watts in Your Business’ project conducted by Apple and Pear Australia Ltd completed energy audits of 30 packhouses and orchards Australia-wide. This fact sheet shows how lighting changes can cut energy use and save money.