Case Study on how cold store energy savings were identified by a focus on reducing energy by collection and analysis of data.

1. Emex 2018
Anne Flanagan Business Development Manager

2. Potential to Save Energy
15% of world’s electricity is for refrigeration and air conditioning systems
20% reduction is achievable by applying best practice

3. Total Cost of Ownership
Capital Aftercare Operating

4. The Project Details
• UK site
• Large Retailer
• 100,000m³ cold store
• 1150kW capacity
• Installed 17 years ago

5. Ethos: Plant Optimisation and Energy Management

6. How Does Ethos Save Energy
Measures the gap between how the system is and how it should be
performing
Provides insights into reasons for the gap
• targeted maintenance insights
• capital replacement insights

7. Targeted Maintenance
• Thorough cleaning of all condensers
• Replacement of condenser float switches
• Optimisation of Vi slide on the compressor
• Purging of air from the condenser
Total energy savings of 23% measured over a 10 month period

8. Capital Investment Insights
• Replacement evaporators will save 12% energy
• Replacement condensers will save 15% energy
Assessment of ROI is made simpler
These insights have not been actioned yet.

9. Energy Consumption

10. Savings
Measured over 10 months
565,000kWh – (annualised 680,000kWh)
160 tonnes of Carbon Dioxide
Further savings advised 615,000kWh

11. Questions
Further Information
aflanagan@star-ts.co.uk
http://www.star-ts.co.uk/services/ethos-homepage.aspx