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Energy production: Rheinenergie tests solar cells on sidewalks

In order to test out new techniques of energy production, Neuehrenfeld will install photovoltaic floor tiles in Cologne. The future project is a collaboration of the Rhine energy with Energy Floor from the Netherlands. Rheinenergie currently has four square meters of photovoltaic floor slabs laid in Cologne Neuehrenfeld. It will be tested for one year how the floor slabs react in practice and whether this new form of energy production makes sense in the city. The 60x60 cm photovoltaic cells are covered with a glass plate and roughened to protect against slipping. Overall, it should be tested to what extent the floor slabs really withstand the weather (rain, skid resistance, road salt in winter). The bottom plates provide 35 watts, so you could provide with a plate converted up to seven laptops with power. Two Cologne households therefore needed about 320 of the floor plates for supply. In Amsterdam, since 2014, a similar project, a 100-meter-long solar bicycle lane, successfully
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Free solar energy: no more excuse

For companies that own large halls, there is now no excuse if they still have no solar panels installed on their roofs. With the offer of a company like Enerdeal, it would cost nothing to install a solar system and also mean little extra work. However, the company can show with the solar system that the environment is important to him and that social responsibility for it is not just an empty buzzword - and that, without spending any money - a financing model entirely in the interest of the environment. In addition, the ownership of the system automatically passes to the owner of the building after 15 years. So the customer gets an investment, which can theoretically continue for another 15 years. Any electricity produced there will increase the net profit of the company. And during all the years of production, the electricity generated has contributed to CO2 savings. The least likely excuses would be if the company could not offer the roof for 15 years, it would not be able to
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When stones become energy storage

In a night storage heaters stones are usually heated at night with cheap "low tariff" electricity. The stored heat is then released during the day. Whether this principle also works on a large scale when it comes to energy use is currently being tested by engineers in a pilot plant near Hamburg Altenwerder, a district in the port of Hamburg. With the safety helmet on her head, engineer Jennifer Wagner walks over a construction site. The two buildings - each big as an apartment building - are almost finished. What's missing are the core components: "The stones are not delivered yet, but in the end they look just like the heap over there, they are very simple quarry stones being blown out of the quarry." Wagner and her team are waiting for 1,000 tons of volcanic rock from the wind turbine manufacturer Siemens Gamesa. In the next few weeks, the delivery should come. Then the stones will land in one of the two buildings. It is a heat-insulated concrete bunker,
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Verband promotes solar energy expansion in NRW

The few clouds and recent showers can not hide the fact that it is sun-time - and not just in North Rhine-Westphalia. Almost everywhere, the sun is currently shining twelve or more hours a day. The photovoltaic systems installed in Germany produced a total of 6.7 terawatt hours of solar power in July 2018 - an all-time record. The National Renewable Energy Council (LEE) sees great opportunities for photovoltaics in NRW, especially in the   Connection with electromobility: "Especially the cities could benefit significantly," says CEO Jan Dobertin, pointing out that electric cars drive quiet and emission-free. Bye, traffic noise!
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Solar power

The few clouds and recent showers can not hide the fact that it is sun-time - and not just in North Rhine-Westphalia. Almost everywhere, the sun is currently shining twelve or more hours a day. The photovoltaic systems installed in Germany produced a total of 6.7 terawatt hours of solar power in July 2018 - an all-time record. The National Renewable Energy Council (LEE) sees great opportunities for photovoltaics in NRW, especially in the  Connection with electromobility: "Especially the cities could benefit significantly," says CEO, pointing out that electric cars drive quiet and emission-free. Bye, traffic noise! Economy Minister Pinkwart (FDP) wants to present a potential study for solar energy in NRW after the summer (the NRZ reported). For the Ruhr area, there has been such a thing for some time, created on behalf of the regional association there. 1.1 million roofs are therefore suitable for solar energy production, but actually only 40 000 are used for it and ar
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