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Leaders in Sustainable Energy

ENERGY MANAGEMENT BUREAU SERVICE / HELP DESK. Stewart Conway & Prakash Patel. Leaders in Sustainable Energy. Leicester City Council. Leicester City Council has some very ambitious environmental Commitments to reduce energy and water in its buildings.

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Leaders in Sustainable Energy

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  1. ENERGY MANAGEMENT BUREAU SERVICE / HELP DESK Stewart Conway & Prakash Patel Leaders in Sustainable Energy

  2. Leicester City Council Leicester City Council has some very ambitious environmental Commitments to reduce energy and water in its buildings ‘Leicester is committed to having the amount of energy it was using in 1990 by 2025 and aims to get 20% of all its energy from renewable systems by 2020’ For many years Leicester City Council has played an active role in encouraging and supporting measures which, protect our environment. This was recognised in 1990, when Leicester became Britain's first “Environment City”. Leicester City Council has since adopted a number of "green" policies, ensuring that its own services and activities meet the high standards it encourages others to adopt. 

  3. Main duties: Managing the use of energy & water in all of the Council’s 450 buildings Administering over 3,000 separate utility accounts Securing energy and water supplies valued at around £6 million p.a Energy Management Services

  4. Main functions: Monitor energy and water use and report any exceptional consumption Survey and audit buildings to identify areas for savings Manage projects to improve energy and water efficiency in buildings Obtain investment funding and grants for energy and water projects Energy Management Services

  5. Main responsibilities: Report energy consumption data to building managers Report energy cost data to budget holders for financial planning Report on the City Council’s energy performance information for Best Value indicators and EMAS Energy Management Services

  6. Communications: Provide training, advice and information on energy and water related issues e.g. via “Energy Newsletter” internally on Intranet, also global internet pages Energy Management Services

  7. automaticMonitoring and Targeting The future for Energy Management Services

  8. £

  9. Meters Data Bird Local Logger Radio Antenna Central Receiver / Data Logger Computer Modem Intelligent Metering Energy Metering Technology

  10. KEY Central Receivers / Data Loggers Local Loggers Council Offices Sports & Leisure Facilities Schools & Colleges Museums & Libraries District Heating Scheme Community Homes Business Overview of Leicester

  11. The Advantages • Automatic collection of meter readings • Automatic analysis of data to identify exceptions • Simple / Graphic presentation of energy and water data • Timely & accurate energy management information • Better information / customised advice • Verify savings as a result energy efficiency improvements • Bill validation / verification • Benchmarks

  12. Bill validation / verification

  13. European Energy Efficiency Directive

  14. ‘High-frequency consumption data is a powerful tool in the identification of avoidable energy waste’ Putting Automatic Meter Reading Data to Work Automatic Utilities Auditing Has enabled Leicester City Council / Leicester Energy Agency to track, analyse and report on energy and water consumption to a greater degree. This in turn has helped us to cut utility consumption and costs through effective data management and rapid waste detection.

  15. Daily Reports

  16. Types of Exceptions & Alarms Signature Targets Weather Dependent Targets Constant Targets The above targets also include a calendar of applicable days

  17. Signature Profile High usage alarm Continuously learns the signature consumption profile – using the shape of past consumption profile to predict future consumption

  18. Weather Dependent Profile Heating manually switched ‘ON’ to constant

  19. Constant Profile Laundry building closed and relocated in Home

  20. Baseload Analysis Compares consumption over unoccupied / occupancy periods Unoccupied Period Unoccupied Period - League TablesElectricity, Gas & Water Occupied Period

  21. Monitoring Water Opportunity to save 2,890 cubic metres and £3,758 per year What sort of things can we identify using this type of data

  22. Faulty valves replaced Saving 1,646 cubic metres and £2,141 per year Water Savings

  23. High water usage reported to school and engineers for investigation Leak on heating pipe-work was repaired, however a further leak still existed, reported to the engineers Heating pipe repaired in duct under Main Hall Total Saving of £3,000 / annum

  24. The gas usage does not reflect the buildings operational hours (Office hours). The gas usage is ‘ON’ constantly and never shuts ‘OFF’ even on holidays. (WASTAGE) Monitoring Gas

  25. Continuous gas usage 24 hours a day 7 days a week Extra gas usage not picked up by the site

  26. New timer installed Still operating 7 days a week Heating Operational 7 days a week Building occupied 5 days a week Heating now ‘OFF’ at weekends Continuous heating 24/7 Site unaware of this situation Timer / controls failed

  27. Gas profile shows a weekly comparison of the actual gas consumption against target consumption. The target consumption is weather related. This shows the cumulative deviation between the actual energy consumption and the target. The downward slope indicates that consumption is now lower than the target and that saving have / continue to be achieved.

  28. Monitoring Electricity There was a constant electrical base load 270 kW/h for 13 hours (Monday to Thursday - 5pm to 6am). The site indicated that they left equipment ‘ON’ overnight, this is due to the time it took to sort out the error messages every morning. Therefore this equipment would only be switched ‘OFF’ over the weekend (Friday evening to Monday morning). Following a review, some of the electrical equipment is now being switched ‘OFF’. A saving of £10,575 per annum, has been achieved through good housekeeping - no capital investment was required. There is still an opportunities to save £254/week, £11,430 per annum.

  29. Constant base load 15 kW per hour Switching OFF equipment that was no longer required for normal operation of the building. 10 kW per hour saving – new base load 5 kW per hour Saving 56,160 kWh and £2,808 per year

  30. Identified that 8 Urinal Controls were faulty. These were replaced with new units at a cost of £1,820. Annual Savings based on investment: 3,943 cubic metres and £5,124 There is still an opportunity to make further savings. Verifying Savings Saving 0.4 m3/ hr Saving 0.45 m3/ hr

  31. Cossington Street Leisure Centre Evaluating the efficiency of equipment Solar Thermal System

  32. Information at your fingertips

  33. Opportunities • Ability to self-bill for energy and water • Negotiate better rates for energy and water • Identify buildings that require energy efficiency improvements • Encourage and stimulate energy efficiency investment • Pro-active maintenance using energy data • Streamline our energy and water monitoring • Change behavioral attitudes with a view to adopting a more sustainable lifestyle.

  34. Knowledge is Money! Knowing what an organisation is consuming at any given time is one of the most effective ways of achieving savings. “If you can’t measure it you cant manage it” !

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