‘What does Voltage Power Optimisation do and how does it work’

Presented by: Ismena Clout

Voltage Power Optimisation

£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?

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

• At-source Voltage Power Optimisation

• Ensure all equipment runs efficiently

• Ventilation (HVAC)

• Lighting / IT

VPO – redefining power supply

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).

+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

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

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

• 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

Installed at more than250 private companies (across all sectors)90 councils (includes 23 schools)40 HE / FE facilities (all types)12 government agencies

• 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

• 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

Inner Workings

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

‘Determining payback and obtaining funding’

Presented by: Ian Gould

Voltage Power Optimisation

we’ll estimate your savings

Using your data

Proven 4 step process

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

Voltage logging to determine your voltage profile and optimisation opportunity

We survey your site(s) and provide a more detailed proposal

Full project management of your installation to PRINCE2 methodology

Engineering Excellence

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

• 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

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

Power qualityVLA - Feeder Pillar 2A Reactive Power

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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.

Power quality

VLA - Feeder Pillar 2A Power Factor

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Pow

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Increasing Optimisation

0.91 0.92 0.93 0.94

Reactive power is reduced, power factor is improved, and harmonic distortion is minimised

“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

• 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

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

Are there any questions?