ENERGY METERING PROJECT

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

• Main duties
• Managing the use of energy water in all of the
  Councils 450 buildings
• Administering over 3,000 separate utility
  accounts
• Securing energy and water supplies valued at
  around 6 million p.a

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Energy Management Services

• 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

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Energy Management Services

• Main responsibilities
• Report energy consumption data to building
  managers
• Report energy cost data to budget holders for
  financial planning
• Report on the City Councils energy performance
  information for Best Value indicators and EMAS

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Energy Management Services

• Communications
• Provide training, advice and information on
  energy and water related issues
• e.g. via Energy Newsletter internally on
  Intranet, also global internet pages

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automatic Monitoring and Targeting The future
for Energy Management Services
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Intelligent Metering
Energy Metering Technology
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Overview of Leicester
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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

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Bill validation / verification
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• European Energy Efficiency Directive

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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.
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Daily Reports
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Types of Exceptions Alarms
Signature Targets
Weather Dependent Targets
Constant Targets
The above targets also include a calendar of
applicable days
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Signature Profile
High usage alarm
Continuously learns the signature consumption
profile using the shape of past consumption
profile to predict future consumption
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Weather Dependent Profile
Heating manually switched ON to constant
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Constant Profile
Laundry building closed and relocated in Home
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Baseload Analysis
Compares consumption over unoccupied / occupancy
periods
- League Tables Electricity, Gas Water
Occupied Period
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What sort of things can we identify using this
type of data
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Faulty valves replaced
Saving 1,646 cubic metres and 2,141 per year
Water Savings
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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
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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
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Continuous gas usage 24 hours a day 7 days a
week Extra gas usage not picked up by the site
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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
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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.
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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.
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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
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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
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Cossington Street Leisure Centre
Evaluating the efficiency of equipment
Solar Thermal System
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Information at your fingertips
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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.

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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 cant measure it you cant manage it !