Voltage Power Optimisation

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

Presented by: Ismena Clout

Energy efficiency or renewable energy? £8.5billion wasted a year in energy says 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

The challenges Financial

Legislative

• Volatile electricity prices • Increasing prices over time • Effect of recession

Trading Schemes (EU) Climate Agreements Carbon Reduction Commitment

Environmental Copenhagen failed – now up to us Carbon economy Corporate Responsibility

Technical • The Energy Gap

• Effects of poor power quality • Higher voltage than required

VPO – redefining power supply • Ventilation (HVAC) • Lighting / IT

• At-source Voltage Power Optimisation • Ensure all equipment runs efficiently

• VPO is advanced Japanese technology

Our story

• Invented in 1993 because energy prices were four times higher than in Europe. • Introduced to the UK – 2001 • Over 300,000 units installed in Japan. • 100% reliability and safety record. • VPO technology is manufactured exclusively for powerPerfector for the UK and European markets (230V).

European Harmonisation “A “A230V 230Vlinear linearappliance applianceused usedon onaa240V 240V supply supplywill willtake take4.3% 4.3%more morecurrent currentand andwill will consume consumealmost almost9% 9%more moreenergy energy…” …”and and “… “…only onlyachieve achieve55% 55%of ofits itsrated ratedlife” life” +6% (254V)

+10% (253V)

253V

240V 230V

+6% (233V) -6% (226V) 220V

- 6% (216V) 207V

-6% (207V) 1995

2007

Permissible supply: 207V to 253V (BS EN 50160:2007)

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

Transients

Over voltage… UK maximum voltage, 253V

UK average voltage, 242V

• Spikes are on the increase and can be devastating Customer voltage trace

Harmonics • Disrupt sensitive electronic equipment and reduce efficiency of HV transformers

3-phase imbalance UK nominal voltage, 230V

Optimum voltage 220V

• 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

UK minimum voltage, 207V

Poor Power Quality

powerPerfector – the technology • 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.

Installed at more than 250 private companies (across all sectors) 90 councils (includes 23 schools) 40 HE / FE facilities (all types) 12 government agencies

Designed for energy saving – like no other Delivering you the Performance and Savings your business needs. Guaranteed. • 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

Technical Benefits • 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

Inner Workings

Customer benefits – totally risk free Financial • Reduces energy costs by up to 20% • Reduces price volatility risk • Reduces maintenance/capital costs • High ROI (25% – 100%)

Environmental • Reduces energy waste • Meets your CSR targets • Reduces CO2 emissions by up to 20%

• Free Evaluation • Return on Investment Guaranteed

Legislative • Achieves your CRC obligations • Reduce exposure to Climate Change Levy • Provable, auditable energy and carbon reductions

Technical • High efficiency and high performance • Improved security of supply • No maintenance required • 15 year warranty

Voltage Power Optimisation

‘Determining payback and obtaining funding’

Presented by: Ian Gould

Proven 4 step process

Using your data we’ll estimate your savings

Electrical equipment Electronic

Motors

• Computers, UPS, VSDs, HF lighting, ‘non-linear’ loads

• HVAC, AHUs, pumps, compressors

• Reduce supply losses by filtering harmonics

Resistive

• The main source of savings • Optimise voltage level and balance phases to reduce losses

Lighting

• Electric heaters

• Optimise voltage to save energy on magnetic • Thermostatically controlled ballast or incandescent heaters see no energy saving lighting

A real site contains a mixture of load types We will assess the mixture and guarantee the savings

Voltage logging to determine your voltage profile and optimisation opportunity

Engineering Excellence

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

Full project management of your installation to PRINCE2 methodology

Funding options 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 4year loan to SMEs looking to install energy efficient technologies.

Savings Analysis • 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 quality improvement is assessed

Measurable value verified by world class analysis

IPMVP – Analysis Methodology Before installation

After installation

• Agree Measurement & Verification Plan with client before installation

• Analyse data according to M&V Plan

• Build model of energy use • Client records other changes in energy use

• Full savings report • Case study published with permission of client

Power quality VLA - Feeder Pillar 2A Reactive Power 100 90

pP+ switch settings:

80

F

E

D

C

Half hourly kVArh

70 60 50 40 30 20 10

If reactive power data, or other power quality data is available, this provides an insight into the other functions of the powerPerfector.

pP+ savings: 19.9%

25.0% 33.5%

37.8%

01

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01 Power Factor

Power quality

1

VLA - Feeder Pillar 2A Power Factor Increasing Optimisation

0.95

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0.85

0.94

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

0.75

Voltage Power Optimisation

Government Body

“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 Optimisation kWh Savings £ Savings p.a. CO2 Savings p.a.

1MVA 8% 11% £19,000 136,500kg

Voltage Power Optimisation

Education

• 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.

Unit Optimisation kWh Savings £ Savings p.a. CO2 Savings p.a.

350 kVA 8% 14.3% £2,500 16,000kg

Voltage Power Optimisation

Hospital

Unit Optimisation kWh Savings £ Savings p.a. CO2 Savings p.a.

350kVA 8% 10.1% £10,150 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.

Are there any questions?