Case Study: Michael’s Supa IGA, Leongatha VIC

kwhdown pictureOverview

  • Solution proposed to save 8% of the total site’s total consumption, currently saving 12%
  • Capital Cost:  $38,000
  • Savings Proposed pa: $18,500
  • Payback: 1.8 Years*

Introduction

Michael’s Supa IGA is the latest store to see fantastic results and savings with SEDAC Energy Management‘s (SEM’s) work through the Metcash Sustainability@Retail Program. Michael’s Supa IGA signed up for the energy management audit first. SEM’s analysis proved there were opportunities to save energy across all the store’s systems. The energy initiative included the installation of SEDAC’s Energy Management System, refrigeration recommissioning, HVAC recommissioning and automated lighting control system. SEM’s methodology is to provide sites with efficient control of existing assets and visibility into ongoing energy consumption. The control and visibility ensure that sites can benefit from future upgrades on capital plant and equipment as energy wastage is eliminated

Results

 

Leongatha Case Study project tracker

The graph shows the daily total site consumption for the past 12 months. The yellow lines show daily consumption before the site was optimized, and the blue lines show daily consumption after the project was completed. The red line is the reference consumption of what the site would have consumed if nothing had changed.

The installation was very successful and has resulted in savings of 12% of total electricity consumption at the site. Additionally, the site’s staff is much more aware of the importance of certain processes that reduce energy use at the site. Previously existing maintenance issues have now been reduced with the improved control and recommissioning.

After the completion of the installation Mr. Morabito stated “SEDAC EM have delivered a solution which has had a positive impact on the business both financially and operationally. My staff can now focus on the business, and I can see the benefits in my energy bills.”

The solution will save Michael’s Supa IGA $20,000 per annum!

The increased savings have reduced the original payback of 2 years to a revised payback of 1.8 years. This figure is conservative since we do not take any energy price increases or reduction in maintenance costs into account.

This graph shows the monthly consumption year on year for 2012/2013 – 2013/2014. The August to November data shows that the store was using more electricity in 2013 than 2012. The decrease in the yellow bars in and after December highlights how the store has halted its problem of increased electricity use and is now consistently using less electricity than it did a year ago.

 

 

 

SEDAC EM’s Solution for Michael’s Supa IGA Leongatha

Refrigeration Optimisation

case study- leongatha refrigerationSEDAC EM completed full re-commissioning of the refrigeration system to ensure it operates at its most efficient. The first steps were understanding the refrigeration plant and equipment. Once we confirmed how the refrigeration system was currently operating, we identified areas where improvements could be made without compromising plant, equipment and stock.

Lighting Optimisation

case study- leongatha lightingAutomated lighting control was installed for internal and external lighting which included zoning areas based around time schedules, staff occupancy and daylight sensing. The installed system has removed all operational inefficiencies and ensured that all lighting areas are controlled efficiently. This lighting system will not only increase the lifespan of lighting but also allow staff to concentrate on sales rather than operations.

HVAC Optimisation

The SEDAC BEMS has ensured that the site’s air conditioning units are efficiently controlled whilst maintaining the site’s comfort level. The improved control of the system creates more efficient operation with heating demand is decreased during cold periods by recycling the heat inserted into the building from the high powered lighting.

  • Energy Visibility

case study- leongatha energy visibilityThe SEDAC Energy Management System accurately measures the savings and ensures that an optimum baseline is sustained for the site. The improved visibility also assists with identification of potential issues and allow Michael’s Supa IGA and SEDAC Energy Management to rectify them. The SEDAC Continuous Review Process is completed whereby issues identified are reported and then followed up with site to ensure technical and operational inefficiencies are rectified.

Conclusion

The SEDAC BEMS solution for Michael’s Supa IGA has provided a number of successful outcomes:

case study-leongatha money saved

Financial savings

The dollar savings from the initiative can be accurately quantified. This greatly assisted the engineering team with proving the payback periods and quantifying the CO2 reduction achieved.

Cultural change

case study- cultural changeBy improving the staff’s understanding of site operations and involving staff directly in operational improvement, staff reported that they learned more about how the site worked. Their involvement has led to greater opportunity to improve operations and procedures.

Community recognition

case study- community recognitionThe energy saving and CO2 reduction data collected from this site can be submitted for various industry awards and to demonstrate to the wider community that Michael’s Supa IGA is continually setting higher standards for energy efficiency.

Energy Savings

A 12% reduction in total electricity usage was achieved using the SEDAC EM approach. The data and savings were obtained using sub meters plus tariff meter data which allowed SEDAC EM to provide the client with accurate energy savings results. These results will be sustained over time, making this an investment that provides financial returns for years.

 

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s