1. Identifying Hidden Electricity Waste Ross Courtney ross@arkee.co.uk 01202 237700 www.arkee.co.uk

2. What do I mean by ‘Hidden Electricity Waste’?

3. Metering –Standard meter <100kW –Half-hourly meter >100kW (Rough rule of thumb - over £30,000 pa, but could be much lower)

4. Metering What type do you have? MPAN (Meter Point Administration Number) Profile Type is ’00’ then Half Hourly, any other number then not half Hourly. Found on bills

5. Non Half Hourly Meter Data

9. Half Hourly Meter Data

12. Half Hourly Data

13. One month Half-Hourly Data

14. Other/Future Techniques Smart Meters AM&T Clip-on Display Meter

15. What do we use?

16. Electricity Usage Data

17. Case Study & Examples

18. Case Study Activities: Public House (medium size) Size: 3 full time staff, 12+ casual Electricity use per year: £25,000 - £35,000 Specific Issues: None Other relevant information: Taken as a challenge, this pub has one of the lowest overnight usage figures in the south area (40+ pubs). Landlord is energy efficient aware and feels there are insignificant savings achievable. Note: Already have AMR & display meter.

19. Case study: Approach 24 hour analysis of usage Work with client on day end procedures to see if overnight usage can be reduced further

20. Case study: Graphs

21. Case Study: Graphs (Ch1) Before After

22. Case Study: Graphs (Ch2) Before After

23. Case Study: Graphs (Ch3) Before After

24. Example 2 Activities: Children’s Playgroup Size: 6 to 10 staff Electricity costs per year: approx £8000 Specific Issues: Received large bill for electricity usage from new supplier, creating a query on whether meter was reading correctly Other relevant information: Government funded energy efficiency organisation had surveyed electricity and concluded there was a circa £2K difference between usage and billing

25. Example 2: Approach Perform 24 hour data capture and analysis Cross reference to new energy supplier’s readings to see if there was a case for meter checks/replacements

26. Example 2: Usage Graphs

27. Example 3 Activities: Restaurant Size: 2 Staff (owner/operators) + casual Electricity costs per year: Approx £7,000 Specific Issues: Costs have increased more than expected. Owners suspected a chilling unit was not working correctly, could we verify and help them understand the cost implications if faulty Other relevant information: None

28. Example 3: Approach 24 hour electricity data analysis and diagnostics Individual equipment consumption check

29. Example 3: Graphs

30. Conclusions Overnight usage can be significant (in these case studies 5%-25% reductions identified) Many companies have limited access to meaningful data about their electricity usage It is not always obvious what is wasting your energy

31. Questions?

32. Thank you for listening Ross Courtney ross@arkee.co.uk www.arkee.co.uk 01202 237700