June 19th, 2015

Pumped hydro energy storage systems

As we move into a world with increasing amounts of renewable energy on the grid, reliable, affordable and grid-scale energy storage systems are essential. Pumped hydro is one such system.

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June 16th

Compressed Air

The supply of compressed air accounts for between 10 to 15% of the electricity bill of the average industrial consumer. Fortunately, compressed air systems frequently offer some easy to identify and rectify energy saving opportunities. These should be a priority at all sites using this versatile but costly resource.

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June 12th

Exploiting niches in hydro power

The UN Industrial Development Organisation calculates that 87% of Western Europe’s economically viable small hydropower capacity has been exploited. In Northern Europe that figure rises to 95%. Yet, innovative companies in niche segments are seeing opportunities in hydropower – and good growth.

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June 10th

Measuring Earth Resistance

Earth resistance is a key parameter in determining the efficiency of earthing systems. In this Application Note we look at the measurement of earth resistance.

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June 5th

Should MEPS be set significantly above the minimum LCC point?

Setting Minimum Efficiency Performance Standards (MEPS) at the point of Least Lifecycle Cost (LCC) is generally considered a best practice for sustainable product policy.

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June 3rd

Zero-emissions Refrigeration Transport Unit in test

An innovative zero-emissions motor for the refrigeration transport sector powered with liquid nitrogen is undergoing commercial road trials in Central England.

Dearman truck at liquid nitrogen filling station

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May 22nd

Saving energy in the pig and dairy industries

In farming businesses, a 20% reduction in energy costs can represent the same bottom line benefit as a 5% increase in sales. Being energy efficient can also enhance a business’s image and reduce its environmental footprint.

This article looks at energy-saving opportunities in the pig farming and dairy industries. Where applicable it deals with heating; ventilation & air circulation; refrigeration equipment; lighting; building fabric; and energy management.

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May 19th

Status Report on Ocean Energy

A recent report from the European Commission’s Joint Research Centre (JRC) presents the overall state of play of ocean energy in Europe and globally in 2014. The report analysed in depth the four main types of ocean energy conversion technologies and the key activities undertaken to ensure and facilitate their commercialisation.

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May 12th

Active Harmonic Conditioners

This Application Note discusses the use of active filters to reduce harmonic currents in installations. Active filters work by providing the harmonic current required by the load instead of it being drawn from the supply.

The major advantage of active filters is that they can be distributed around an electrical network in a decentralized manner, which enhances the effect of filtering. They can be programmed to respond to selected or all harmonic frequencies and quickly adapt to changes in load profile.

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May 8th

5MW Liquid Air Energy Storage Demonstrator Nears Completion

A novel 5MW/15MWh liquid air energy storage system is nearing completion at a landfill waste site near the city of Manchester, England. The demonstration system will be connected to the UK grid to provide balancing services.

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