Case Study: Commercial energy reduction solution – Fish ‘n’ Chip shop
EXISTING SET UP
The fish ‘n’ chip takeaway shop is very busy. It operates 7 days a week in the evening and on Thursday to Sunday, the shop is open for lunch.
Belenus Pty Ltd was approached by the owner to see if we could help reduce their ever increasing energy bill which was around $2000 per month. An energy audit of the business revealed four areas where we could make a significant impact on the business.
The property contained fluorescent and incandescent lighting that could be changed for LED fittings.
A large cool room and similar sized freezer room could be re-gassed with hydrocarbon refrigerants to improve efficiency.
The large kitchen extraction system could be operated via a VSD to improve efficiency.
A solar array could be added to the roof to produce electricity.
We use the latest LED and sensor technology from our trusted manufacturers. There is a huge variety of product on the market, but the lighting failure rate is one of our biggest priorities. Our strong relationships with the manufacturers built up over time allows us to offer the best product at a competitive price. All the products we install carry a manufacturer’s warranty for a minimum of 4 years.
By changing the current lighting to LED we reduced the annual lighting consumption from 2557.52 KWH to 1260.23 KWH which was a saving of 1297.29 KWH or $501.53 year.
We could also assist in lowering the energy consumption of the current refrigeration/freezer systems by re-gassing it with new hydrocarbon refrigerant. This process also mean that the systems gets a full service and overhaul at the time of re-gassing. An added bonus! The hydrocarbon refrigerant is significantly more efficient than the current gas used. It allows the compressors to operate at a much lower pressure which uses less electricity and lessens the wear and tear on the equipment.
To get an accurate picture that we are confident with we would need to log the consumption over a period of time before and after the work to the refrigeration/freezer systems had being carried out. We can accurately say that against the current refrigerant, we would confidently see an electricity consumption reduction of 30% on those two pieces of equipment.
On the extraction fans, Belenus Pty Ltd can reduce the consumption from 7245 KWH to 3000KWH a saving of 4245 KWH or $1641.12 per year simply by putting a variable speed drive on the existing 3 phase extraction.
“We are passionate about reducing then producing as much renewable energy as we can for everyone.”Mark Taylor, Business Development Manager, Energy Consultant
After reducing their consumption as much as is possible, Belenus Pty Ltd wants to produce as much feasible energy through solar. It was proposed that Belenus Pty Ltd would install a 14.91 KW solar array that would produce 21400 KWH per year.
Belenus Pty Ltd was able to reduce the fish ‘n’ chip shops energy demands by between 120 and 140 KWH per day by simply changing out the lighting to LEDs, re-gassing the refrigerators and adding a variable speed drive to the extraction fan. This would reduce the daily charge from $64.90 to between $24.25 and $30.02. What a saving!
With the addition of a solar panel system, the fish ‘n’ chip shop would significantly reduce their energy bills instantly as well as being socially responsible by helping the environment.
The environmental impact per year, for the fish ‘n’ chip shop, would be 34,165 KG’s of Co2 saved and 164 trees offset.
The cost to complete all of the above works the total cost labour, materials and plant hire would be $36,900 + GST with a return on investment payback period of 3 years and 2 months.
If this renewable energy plan was financed, based on a 5 year repayment plan, the monthly repayments would be $764.61 + GST. The savings on the electricity bill per month would be a minimum of $1058.03, so these would more than cover the repayments.