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Energy Efficiency News & Opinions ...

 Don’t miss invisible energy saving factors ...
 Trevor Longland - Power Factor Specilaist - Schneider Electric
(1.0MB)


While attention has been paid to the Climate Change Levy and the tax allowances for fitting energy saving equipment such as variable speed drives, there is a strong case for looking at power factor correction first when looking to cut electricity consumption ...

Energy consumption was brought into focus for industry when the Climate Change Levy (CCL) was introduced. Essentially, the CCL is an additional tax on energy usage by industry and commerce, but the UK Government tried to soften the blow by introducing Enhanced Capital Allowances for capital investment in certain energy saving technologies. What this means is that the full value of the installation can be offset against income tax in the first year. Although this does provide a small amount of relief for such investments, the allowable equipment only extends to the likes of efficient boiler systems and to variable speed drives used to control electric motors. In practicality, the CCL has not impacted as greatly as first imagined and neither has the ECA had anything like the take up expected. Why power factor correction equipment was not considered in the tax allowances introduced along with the Climate Change Levy is a mystery, since its primary function is to reduce energy losses!

"The challenge to meet energy targets set at Kyoto will take strong hearts and minds..."
 Kevin Jones - Principal Energy Consultant
"Voltage control lights the way to energy savings outside..."
 Richard Hipkiss - Energy Solutions Manager
"Don't miss invisible savings... "
 Trevor Longland - Power Factor Specialist
"Energy management needs intelligence... "
 Kevin Jones - Principal Energy Consultant
"Interested in saving energy and beating the Taxman?.."
 Richard Hipkiss - Energy Solutions Manager

By adopting power factor correction measures it is possible to substantially reduce the current taken from the electricity supply. There are major kW losses on the network defined by the I2R law whereby the square of the current is multiplied by the resistance of the cables, transformers and overhead lines that form the national electricity distribution system. These distribution losses vary between Network Distribution Operators (NDOs) and are quoted as high as 11% typically and up to 19% in one instance. These figures do not include the additional losses occurring on the National Grid system.

The national system electrical energy losses represent an enormous CO2 component emitted from the generation of the wasted power. Although these losses cannot be completely eliminated, there is a very strong argument that their reduction should be encouraged ... (cont)

     
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