powerperfector Voltage Power Optimisation

Transcription

1 powerperfector Voltage Power Optimisation IAN GODDARD

2 powerperfector INTRODUCTION Voltage Power Optimisation is one of Japan s most advanced scientific inventions of recent times. (100V) Principally invented because energy prices 4 times higher than in Europe at the time. Since 1993, total sales of the Voltage Power Optimiser have exceeded several hundred thousand units to businesses and Government in Japan. This VPO technology is manufactured exclusively for powerperfector so that we may offer it to the UK and Irish Markets. (230V)

3 The Real World and the Opportunity AVERAGE VOLTAGE IN UK IS 242V (Electricity Association) 90% of buildings use more electricity than they actually need And can save 10% to 20% on their electricity costs. Many businesses and organisations lose downtime/equipment from power spikes 90% OF PREMISES IN THE UK ARE OPERATING AT A VOLTAGE HIGHER THAN THEIR DESIGN OPTIMUM. powerperfector CORRECTS THIS OVER-VOLTAGE AND SAVES THE WASTE

4 Background: Harmonisation +6% (254V) 240V +10% (253V) +6% (233V) 230V -6% (226V) 220V -6% (206V) 230V - 6% (216V) 253V 207V From January 1995 statutory supply was 216V to 253V From January 2008 this widens to 208V to 253V

5 powerperfector Technology Features Designed to optimise supply Designed to save energy Developed in Japan in ,000+ sold to date 10-year guarantee 30+ year life cycle Installed between meter & bus bar Maintenance free powerperfector carries 10,000,000 product and public liability insurance, and not one of over 300,000 units in use has ever failed.

6 The Electrician s Guide: Inefficiencies at 240 Volts A 230V linear appliance used on a 240V supply will take 4.3% more current and will consume almost 9% more energy A 230V rated lamp used at 240V will achieve only 55% of its rated life. (It will fail after c550 hours instead of the average 1,000 hours.) In Hull recently a councillor jokingly asked how much does a bulb cost to change? The official answer was 50 because of all the people and paperwork involved.

7 Low Voltage Recorded At Surrey CC County Hall Averaged minimm voltages recorded County Hall Voltage ITC Building Voltage 230 Voltage Min 225.5V Min 202.5V day logging Logger moved to other building Everything operates efficiently at County Hall with no electrical problems. Sustainability Performance Coordinator Surrey CC 2005

8 Voltage Optimisation: Effect On Building Loads Motors, Air Conditioning & Ventilation Reduced iron and copper losses Lower operating temperatures Prolonged equipment life Reduced maintenance costs Saves money

9 powerperfector Benefits Immediate reduction in energy costs ROI of 25% - 100% Reduces carbon emissions Extends life of electrical equipment Protects equipment from transients Increases capacity on your breakers Reduces maintenance costs Balances the three phases Suppresses harmonics to inside G5/4 Improves your PF by 3%-10% A 1MVA powerperfector is less than a metre square

10 Some powerperfector results 8% Optimisation = 12% + saving 8% Optimisation = 14% saving 9% Optimisation = 14.7% saving 8% Optimisation = 22% saving 7% Optimisation = 13% saving 8% Optimisation = 13% saving 7% Optimisation = 13% saving All % cost savings are the same % carbon savings and are derived from the client s half hourly data

11 Public Sector organisations saving energy and working with powerperfector - 2

12 Private Sector organisations saving energy and working with powerperfector - 1

13 Step 1 - Free Financial Evaluation Data required: Highest Maximum Demand in previous year Total kwh consumed in previous year Cost per kwh, including CCL, of electricity in next year

14 Step 1 - Calculate Financial Benefits Savings per annum Return on investment Carbon savings Pay back

15 Step 2 - We send you a logger to log your voltage Voltage Logging Results Statutory Minimum (216V) An 8% optimisation setting was selected after the voltage had been logged over a 7 day period and found, as the graph shows, to be well above the national average of 242V each.

16 Step 3 After confirmation - arrange for survey powerperfector arrange for installation cost survey You make the decision based on the fixed costs Deliver time is 2-10 weeks STEP 4 Installation at your convenience Finally, if you are not happy within 3 months we will uninstall powerperfector Plc guarantee to reduce your costs and carbon emissions

17 Step 4 - Installation ACB LV supply Meter HV Transformer powerperfector LV distribution Neutral bypass Pre-cabling and prep time 2 hours 2 days Downtime 5 mins 5 hours Will run 24/7 Guaranteed to reduce energy costs safely and simply One simple installation and your whole building or plant room is optimised

18 Back to Worldwide Dispensers - our savings evaluation powerperfector will objectively analyse your half hourly data Robust analytical methodology: 1 month pre and post installation Year on Year comparison All available data pre and post KVARH Analysis Power Factor uplift Savings report signed off by the client Introduction Three powerperfector Voltage Power Optimisation units have been installed at DS Smith Plastics Worldwide Dispensers in Merton, London. The table below shows the installation programme: Supply powerperfector unit size Optimisation setting Installation date SP3 830kVA -7% 25/09/2006 SP2 560kVA -8% 29/12/2006 SP1 420kVA -8% 29/12/2006 An analysis of daily electricity consumption on the site is shown below. Calculated Now that this programme is complete, the entire site is benefiting from on a optimised daily basis, the average kwh consumption over the period since the final units voltage, improved power quality and balancing of the three supply were phases. installed Electrical is 22.0% lower than the average before optimisation reduction from equipment is operating at its design-optimum voltage, and electricity 1,262kWh consumption to 985kWh. This is a daily saving of 277. has been reduced substantially as a result. The projected savings of 11.5% 13% have been realised and exceeded by a considerable margin, with the overall kwh consumption across the site as a whole reduced by 22%. From the time of the final DS Smith Plastics - Worldwide Dispensers - Daily Consumption installation up to 25 th February the date to which half-hourly kwh data is available 22.0% reduction in daily kwh consumption savings in carbon emissions of 12.4 tonnes have been achieved. 277 reduction in average daily electricity costs Overall savings After all installation Electricity consumption data for the period since the installation of powerperfector units on supplies SP1 and SP2 is compared to data from earlier in the year in the chart below, illustrating the savings that have resulted from voltage optimisation As Installation on SP3 only shown, there has been a 21.8% reduction in average weekly electricity consumption, from 132,521kWh to 103,625kWh. In cost terms, based on an electricity unit price of 6.7 pence/kwh, this is equivalent to a weekly saving of 1,936. Before installation 5000 DS Smith Plastics - Worldwide Dispensers - Weekly Consumption kwh consumption % reduction in kwh consumption ,936 reduction in average weekly electricity costs Installation on SP3 only Before installation during this period 0 kwh per day 03/12/ /12/ /12/ /01/ /01/ /02/ /02/ /03/ /03/ /04/ /04/ /05/ /05/ /06/ /06/ /07/ /07/ /07/ /08/ /08/ /09/ /09/ /10/ /10/ /11/ /11/ /12/ /12/ /12/ /01/ /02/ /02/2007 Week ending 01/12/ /12/ /12/ /01/ /01/ /02/ /02/ /03/ /03/ /03/ /04/ /04/ /05/ /05/ /06/ /06/ /06/ /07/ /07/ /08/ /08/ /08/ /09/ /09/ /10/ /10/ /11/ /11/ /11/ /12/ /12/ /01/ /01/ /02/ /02/2007 Date After all installations Case study produced - you have been powerperfected An impartial evaluation of the savings from an objective source your supplier s Half Hourly Data

19 Showing the initial savings 1 month before and after the first installation Power supplies on site have separate metering this allowed us to analyse savings from the first installation. A saving of 15.0% was immediately obvious, along with a reduction in Maximum Demand of 12.1%.

20 Why not just Tap Down My Transformer? Savings max 2.5% with tap down 13%+ with pp No alignment of phases No improvement in power quality No transient protection Inefficiency of the transformer 5% Tap Down vs 8%+ with pp

21 Savings from Voltage Power Optimisation compared to HV Tap down over 30 years HV Tap Down vs powerperfector Savings from powerperfector at 7% Optimisation are over 3.5x those of the maximum HV Tap down. At an Optimisation of 8% they are over 4x those of the maximum Tap Down. Data from a 24hr Superstore Energy Cost = 6p/kWh powerperfector HV Tap Down 9% = 14.5% savings 8%= 13% savings 7% = 11.5% savings ,919 9% VPO 217,702 8% VPO 186,486 7% VPO 51,027 5% Tap Down 25, % Tap Down 399,798 9% VPO 352,974 8% VPO 306,149 7% VPO 103,054 5% Tap Down 51, % Tap Down 852,437 9% VPO 758,788 8% VPO 665,139 7% VPO 155,082 5% Tap Down 77, % Tap Down 5%= 2.5% savings 2.5%= 1.25% savings Payback within 2 years for VPO Years Results based on an annual consumption of 2,602,810 kwh. powerperfector installation data: 560kVA unit costing 34,360, showing a Return on Investment of 59% with payback in 20 months.

22 powerperfector Technical

23 powerperfector Construction Purest laminated sheets of copper Flaked silicon steel core Each unit is hand made 99.9% efficient over whole load range Separate Delta and Star winding Neutral bypasses Tap change cables only 100A ¼ the size of a transformer A 1MVA powerperfector is less than a metre square

24 Construction and Technical Aspects Different construction to transformer technology. Coil P r is the Primary coil that transmits the load current and is an AC Line Reactor. Secondary coil S star provides the potential division allowing the reduction in voltage (tap down) on each phase. This secondary winding is connected in a star configuration to the other phases, giving balanced output voltage to the load, even if the input voltages to the unit are out of balance. Tertiary delta winding S Delta is connected in closed circuit delta configuration, eliminating harmonic currents in the supply. S delta S star Pr - primary High Voltage Is Pure Waste

25 Thank you Any Questions?