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    Friday is the time of the traditional issue of Ukrenergo Review – our digest of the most interesting news from the world energy. The sunny weather and pleasant non-autumn breeze make us give a lion’s share of attention to the topic of RES and ecology. So let us talk about the following.

     1. Britain built the world’s largest offshore wind power plant

    The largest offshore wind power plant Walney Extension started its operation on the coast of the Irish Sea in Great Britain. According to The Guardian, its area is equal to 20 thousand football fields, and the capacity of 659 MW is sufficient to power 590 thousand households.

    Matthew Wright, the project’s developer and the UK managing director of Danish energy company Ørsted, believes that Walney Extension power plant is an important benchmark for understanding the vector of global wind energy development. At the same time, Claire Perry, the UK energy minister, said that thanks to that project, Britain would strengthen its position of the world leader in the wind power sector and create thousands of new jobs.

    Walney Extension truly demonstrated the technological progress in the use of wind energy worldwide after the largest windfarm London Array started its operation five years ago. The new power plant uses half the number of turbines, but at the same time, it is more powerful than its predecessor is by almost 30 MW.

    However, given the gigantomania of windfarms along the British coast, it is now clear that the Walney Extension will not bear the title of the world’s largest wind power plant for a long time. The successor, obviously, will be the East Anglia One windfarm of ScottishPower with the capacity of 714 MW, which is scheduled for 2020. In addition, the investment portfolio of Ørsted includes even larger projects on the coast of Yorkshire, namely the Hornsea One and Two windfarms with the capacity of 1200 MW and 1800 MW respectively.

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    2. IRENA: hydrogen from renewable sources will replace fossil fuels in the future.

    In September, the International Renewable Energy Agency (IRENA) published a study “Hydrogen from renewable power: Technology outlook for the energy transition”, devoted to the role of hydrogen in the power system of the future.

    The world seeks to reduce carbon emissions, and renewable energy is becoming vital here. The researchers conclude that transport and industry, which now require energy from fossil fuels, can also use hydrogen produced from renewable energy sources.

    Key sectors for using such hydrogen include:

    industry, where it can replace fossil fuels (in particular, natural gas) in high-emission systems;

    utilities and power sector, where it can be combined with natural gas or carbon dioxide (CO2) emissions in the process of producing syngas;

    transport, where it can contribute to a significant reduction in carbon emissions when used in electric vehicle batteries.

    In the long term, hydrogen can become a key element of the power system with 100% of RES generation. At the same time, the expansion of the use of electrolytic cells for separating hydrogen and oxygen will help to increase the flexibility of the grid and facilitate the integration of significant amounts of renewable energy.

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    3. Energy from food products

    American companies RNG Energy Solutions and Philadelphia Energy Solutions have developed a $ 120 million project for the construction of an anaerobic digestion plant in Philadelphia for the processing of food waste. It involves the use of bacteria during the processing of waste fatty acids for methane production.

    According to Energy Live News, the plant will convert food waste into biogas, which can be used to generate heat, gas and electricity, as well as fuel for municipal buses, trucks, utility vehicles, etc.

    It is expected that the plant will produce 24 thousand gallons of gas per day, as well as a derivative product for the production of fertilizers.

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    4. British companies calculated losses from inefficient use of electricity in offices

    Each office computer left on power for two hours “eats” 200 watts of electricity each day. An office of 100 employees spends about 700 pounds annually, about the same amount as the electricity consumed by 100 light bulbs over the same period. According to Energy Live News, such calculations were made by CMD.

    CMD report states, for example, that copying machines, which are on power during the whole day, are used only for 20%. Thus, this leads to annual energy losses of 320 pounds.

    “Electricity is wasted on a daily basis simply because employees don’t think to turn off devices when they’re not using them. Often this is because devices automatically go into sleep mode. In a large workforce this can represent a significant value,” said Bruce Catrill, Marketing Manager at CMD.

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    5. Germany: diesel banned

    German cities are starting to ban the use of diesel fuel for transport. Hamburg and Stuttgart, home cities for Daimler and Porsche, are among them. Aachen and Dusseldorf are considering the possibility of introducing a similar ban, Deutsche Welle (DW) reports.

    On 5 September, the administrative court of Wiesbaden, the capital city of Hesse, ordered the Frankfurt authorities to ban diesel cars of Euro-4 or lower standards and Euro-1 or Euro-2 petrol standards from February 2019. Euro-5 diesels should be banned starting from September next year. This novelty concerns almost a quarter of the cars registered in Frankfurt and the surrounding areas. The court considers such a ban to be necessary since all other measures at the national level do not lead to a significant reduction in the emissions of nitrogen oxides. Environmentalists from Deutsche Umwelthilfe (DUH) agree with this, pointing out that the prohibition of old cars with diesel engines is the only way to implement environmental rules of the European Union.


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