Anthony Agnew

Voltage Optimisation

Transcript

1. Anthony Agnew Managing Director, The Efficient Energy Corporation Ltd
2. Voltage Optimisation Anthony Agnew
3. Renewables & • The best way to save energy is not to use it. “Insulate before you generate” Andy Buchan Biomass, Solar PV, Heat Pumps, Solar Thermal, MVHR, Low Energy Lighting, Underfloor Heating, Wind Turbines, Hydroelectric....
4. National Grid • Variation in supply – Permissible Supply 207V-253V BS EN 50160:2007 • UK National Average 242V • Designed Voltage – EU Standard 220V
5. Single and Three phase
6. Waitrose - Surbiton •Unit Size – 560kVA •Reduction in kWh consumption – 12.7%
7. Paybacks / Investment Case • Typically 10-15% saving in Electricity costs • Paybacks 3-5 years
8. Specification & Installation • Specification requirements: – Incoming voltage – Annual consumption (kWh) – Maximum demand (kVA) – Price of Electricity (ppu) • Simple Installation Meter Isolator Voltage Optimiser Consumer Unit
9. Commercial Finance • Energy bills above £20k – supplier finance maybe available • Carbon Trust – Efficient Energy Finance “Cost of repayments is always less than the energy savings generated” • Traditional bank debt
10. Further points • Not Three Phase Motors • Draw more power in areas of sub 220V supply – Power critical devices in weak grid areas. • Schools – slower paybacks due to reduced annual usage • Spiking grid Supply, renewables • Transformer integrated VO
11. “A 230V linear appliance used on a 240V supply will take 4.3% more current and will consume almost 9% more energy …” and“… only achieve 55% of its rated life” Institute of Electrical Engineers
12. Anthony Agnew aa@teec.co www.teec.co 0800 254 0800