‘What does Voltage Power Optimisation do and how does it work’ futures... · UK average...
Transcript of ‘What does Voltage Power Optimisation do and how does it work’ futures... · UK average...
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‘What does Voltage Power Optimisation do and how does it work’
Presented by: Ismena Clout
Voltage Power Optimisation
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£8.5billion wasted a year in energysays the CBI
This is around 22m tonnes of CO2 – equivalent to Scotland’s total annual commercial carbon emissions.The Carbon Trust
Seven in ten (69%) of CEO’s are either actively cutting costs or considering reducing their energy bills and their carbon emissions. The Carbon Trust
Energy efficiency or renewable energy?
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Financial
• Volatile electricity prices• Increasing prices over time• Effect of recession
Copenhagen failed – now up to usCarbon economyCorporate Responsibility
Environmental
Trading Schemes (EU)Climate AgreementsCarbon Reduction Commitment
Legislative
Technical
• The Energy Gap• Effects of poor power quality• Higher voltage than required
The challenges
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• At-source Voltage Power Optimisation
• Ensure all equipment runs efficiently
• Ventilation (HVAC)
• Lighting / IT
VPO – redefining power supply
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Our story• VPO is advanced Japanese technology
• Invented in 1993 because energyprices were four times higher thanin Europe.
• Introduced to the UK – 2001
• Over 300,000 units installed in Japan.
• 100% reliability and safety record.
• VPO technology is manufactured exclusively forpowerPerfector for the UK and European markets (230V).
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+10% (253V)+6% (254V)
--6% (226V)6% (226V)
-6% (207V)
+6% (233V) 230V
240V
220V- 6% (216V)
253V
207V
Permissible supply: 207V to 253V (BS EN 50160:2007)
European Harmonisation
“A 230V linear appliance used on a 240Vsupply will take 4.3% more current and willconsume almost 9% more energy …” and
“… only achieve 55% of its rated life”
“A 230V linear appliance used on a 240Vsupply will take 4.3% more current and willconsume almost 9% more energy …” and
“… only achieve 55% of its rated life”
20071995
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AVERAGE UK SUPPLY VOLTAGE IS 242V(Electricity Association)
90% of buildings use more electricity
than they actually need
Opportunity to save 10% to 20% on
their electricity costs
Many businesses and organisations
suffer downtime and equipment failure
from power quality problems
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UK average voltage, 242V
UK nominal voltage, 230V
UK minimum voltage, 207V
UK maximum voltage, 253V
Customer voltage trace
Transients• Spikes are on the increase and can
be devastating
Harmonics• Disrupt sensitive electronic
equipment and reduce efficiency of HV transformers
3-phase imbalance• Reduces motor efficiency and leads
to triplen harmonics
Power factor• Poor power factor is a result of high
reactive power, and can result in additional penalty charges
Optimum voltage
220V
Over voltage…
Poor Power Quality
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• The unit is designed to correct the problem of over-voltage, and addresses a number of common power quality problems in a single unit.
• The design is extremely efficient and its performance and reliability are unmatched by any technology available today.
• The technology has a 15-year guarantee and a 50 year life-cycle.
powerPerfector – the technology
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Installed at more than250 private companies (across all sectors)90 councils (includes 23 schools)40 HE / FE facilities (all types)12 government agencies
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• Specifically designed as energy saving device
• No moving parts; relies on inductive interaction
• Low impedance and high efficiency:99.9% from 15%-100% loading
• Improves power quality to site
• No maintenance required
Delivering you the Performance and Savings your business needs. Guaranteed.
Designed for energy saving – like no other
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• Assists in balancing the three phase voltages
• Protects your site from voltage transients up to 25kV
• Suppresses harmonics
• Improves HV transformer efficiency
• No forced cooling or ongoing temperature monitoring – fit and forget
• Extends life of electrical equipment
• Reduces on-site maintenance costs
• Increases capacity on circuit breakers
Technical Benefits
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Inner Workings
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Financial
TechnicalEnvironmental
• Free Evaluation
• Return on Investment Guaranteed
Legislative
• Reduces energy waste• Meets your CSR targets• Reduces CO2 emissions by up to 20%
• Reduces energy costs by up to 20% • Reduces price volatility risk• Reduces maintenance/capital costs• High ROI (25% – 100%)
• Achieves your CRC obligations• Reduce exposure to Climate Change Levy• Provable, auditable energy and carbon reductions
• High efficiency and high performance• Improved security of supply• No maintenance required• 15 year warranty
Customer benefits – totally risk free
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‘Determining payback and obtaining funding’
Presented by: Ian Gould
Voltage Power Optimisation
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we’ll estimate your savings
Using your data
Proven 4 step process
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Electronic• Computers, UPS, VSDs,
HF lighting, ‘non-linear’loads
• Reduce supply losses by filtering harmonics
Motors• HVAC, AHUs,
pumps, compressors• The main source of savings• Optimise voltage level and
balance phases to reduce losses
Resistive• Electric heaters• Thermostatically controlled
heaters see no energy saving
Lighting• Optimise voltage to save
energy on magnetic ballast or incandescent lighting
A real site contains a mixture of load typesWe will assess the mixture and guarantee the savings
Electrical equipment
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Voltage logging to determine your voltage profile and optimisation opportunity
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We survey your site(s) and provide a more detailed proposal
Full project management of your installation to PRINCE2 methodology
Engineering Excellence
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The technology is supported through the Salix Finance scheme. The fund offers matched funding to support green technologies.
The technology is also supported by the Carbon Trust, who offer an interest-free 4-year loan to SMEs looking to install energy efficient technologies.
Funding options
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• powerPerfector will objectively analyse your half-hourly data to demonstrate the savings attributable to your powerPerfector
• Pre-installation baseline report, then final report 3 - 6 months after installation
• Robust analytical methodology
• Based on the IPMVP (International Performance Measurement and Verification Protocol)
• Normalisation for weather, production volume or other variables
• Where possible, power qualityimprovement is assessed
Measurable value verified by world
class analysis
Savings Analysis
Measurable value verified by world
class analysis
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Before installation After installation• Agree Measurement & Verification Plan with client before installation
• Build model of energy use
• Client records other changes in energy use
• Analyse data according to M&V Plan
• Full savings report
• Case study published with permission of client
IPMVP – Analysis Methodology
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Power qualityVLA - Feeder Pillar 2A Reactive Power
0
10
20
30
40
50
60
70
80
90
100
01/03/
2008
13/03/
2008
26/03/2
008
07/04/2
008
20/04/2
008
02/05/2
008
15/05/
2008
27/05/2
008
09/06/
2008
21/06/2
008
04/07/2
008
16/07/
2008
29/07/2
008
10/08/
2008
23/08/2
008
04/09/2
008
17/09/
2008
29/09/
2008
12/10/2
008
Hal
f hou
rly
kVA
rh
F E D C
pP+ switch settings:
19.9% 25.0% 33.5% 37.8%
pP+ savings:
If reactive power data, or other power quality data is available, this provides an insight into the other functions of the powerPerfector.
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Power quality
VLA - Feeder Pillar 2A Power Factor
0.75
0.8
0.85
0.9
0.95
1
01/03/2
008
13/03/2
008
26/03/2
008
07/04/2
008
20/04/2
008
02/05/2
008
15/05/2
008
27/05/2
008
09/06/2
008
21/06/2
008
04/07/2
008
16/07/2
008
29/07/2
008
10/08/2
008
23/08/2
008
04/09/2
008
17/09/2
008
29/09/2
008
12/10/2
008
Pow
er F
acto
r
0.87
Increasing Optimisation
0.91 0.92 0.93 0.94
Reactive power is reduced, power factor is improved, and harmonic distortion is minimised
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“The powerPerfector at 3 Whitehall Place is a critical part of our energy reduction strategy, and has helped us to maximise our efficiency and reduce our carbon emissions”Jenny McInnes, Building Team
• Responsible for all aspects of UK energy policy and for tackling global climate change
• Objectives: to bring about the transition to a low-carbon Britain; to make energy secure, affordable and efficient
• Wanted a real solution with quantifiable results
Unit 1MVAOptimisation 8%kWh Savings 11%£ Savings p.a. £19,000CO2 Savings p.a. 136,500kg
Government BodyVoltage Power Optimisation
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• High school housing 1380 students aged 11-19
• The typical school day runs from 08:30 – 15:00, and the load comprises mainly lighting and some IT, as well as various small power appliances
• Schools are facing difficult years ahead, as the current recession curbs public spending in education. Installing powerPerefector reduces costs by up to 20%, allowing fewer resources to go much further.
Education
Unit 350 kVAOptimisation 8%kWh Savings 14.3%£ Savings p.a. £2,500CO2 Savings p.a. 16,000kg
Voltage Power Optimisation
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Hospital
Unit 350kVAOptimisation 8%kWh Savings 10.1%£ Savings p.a. £10,150CO2 Savings p.a. 73,000 kg
•Hollins Park Hospital is in Warrington, Cheshire
• Treatment and support for mental illness and learning difficulties
• Savings of 10.1% proven through regression modelling, incorporating almost a full year of post-installation data.
•Case study available on request.
Voltage Power Optimisation
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Are there any questions?