solar geysers

Electronically controlled heater

2011-11-23T22:58:00.001-08:00

Infinitely electronically controlled instantaneous water heater with
21 kilowatts peak power.
TW = leaving the taps
TWW = inlet control valve with
L1/L2/L3/PE = Electric Connection
1) heater
2) Pressure Switch
3) the central retaining screw
L2 of the upper clamp connection (second from left) is already
scorched and melted on the corresponding vein isolation. The device is
not reliable.

For electronic instantaneous water heaters can select the water
temperature at the device. To the mixture of cold water is not
necessary. But even if a mixing valve is used, even a thermostatically
controlled, subject to true electronically controlled water heater is
no longer the limitations of the hydraulic water heater, the heater is
specifically required for proper thermostatic mixing valves.

Benefits are increased comfort and a slightly better efficiency, which
enables energy savings of up to 20% compared to hydraulic
instantaneous water heaters, as well as small amounts of water are
heated only as far as necessary. The warming is largely variable.

The water is usually heated by a heater element in which the filaments
are washed directly from the water. Tap water is usually a good
insulator, so that up to a certain, obvious to the device conductance
no significant fault currents. The bare wire heating elements are
compared with the previously used indirectly heated tube radiators in
addition to the higher efficiency also has the advantage of a much
shorter reaction and thus heating. A disadvantage is the higher
susceptibility to air bubbles and steam bubbles, which can lead to
partial overheating of the heating wires.

Fully electronic water heater, the outlet temperature even above the
performance limit held constant by reducing engine via an
electronically controlled valve, the flow rate to the extent that the
set desired temperature is reached. The world's first fully electronic
water heater in 1987 developed and patented by Stiebel Eltron.

There are also known as "electronic" heater advertised performance
without expensive electronics that have only an electronically
controlled engine valve. By controlling the flow rate can be kept
constant with the temperature limitations, therefore have similar
restrictions on such devices as the hydraulically controlled
instantaneous water heater.

"Great opportunities for more solar energy"

2011-09-02T07:52:00.001-07:00

In three months of construction, built in Brandenburg, the largest current photovoltaic plant in Germany. The company Göppinger Speidel provides the electrical systems. Andreas Wolff NWZ-conversation.

Mr. Wolff, you are involved in building the largest photovoltaic plant in Germany. Given this summer - because you can actually think seriously about the use of solar energy at our latitude?

ANDREAS WOLFF: We consider the issue of renewable energies is not as seasonal products and are committed already since the year 2004 in this area. The owners of facilities must consider the entire period under the Renewable Energy Act, EEG. Moreover, the spring was great. There are, as far as the income stream, a normal year.

You are responsible for the entire electrical equipment plant in Brandenburg. Engage only in large plants?

WOLFF: We specialize in the field of photovoltaics in 2004 on large-scale plants in the megawatt range, and here were among the first in the county, perhaps even nationwide. Similarly, we build but also for the classic customer complete rooftop systems from three kilowatts. Thus, the private client benefits from the insights gained from the large-scale plant.

To what degree have you been equipped facilities?

WOLFF: We have already distributed a total of 400 megawatts to over 100 major installations and successfully connected to the mains.

How much does this now by investing in a circle Oberspreewald / Lausitz?

WOLFF: The plant in Meuro on an area of 150 acres will provide 70 megawatts, in time, 52 tons of CO2 per year.

How many households can thus be supplied with electricity?

WOLFF: The plant will provide electricity for 17 500 households.

See further potential for the use of solar energy, especially in Baden-Württemberg?

WOLFF: Absolutely. What has shifted in recent months after the nuclear disaster in Japan in the federal policy helps ensure that developing alternative solar energy even further. Especially in Baden-Württemberg, we see great opportunities for additional investments by the change of government in the spring. Therefore we want to focus on this market, although we will continue to remain active in other European countries.

During the construction of the plants, but they are not general contractors, but focus on the electronics.

WOLFF: Right. Our performance in the electricity, which covers part of the current example, cabling and the connection of more than 300 000 PV modules, inverters 2555, 650 pieces AC / DC sub-distributors and 141 medium-voltage transformers. Further equipping the entire medium-voltage switchgear, distribution equipment for the AC and DC voltage, but also building the entire communications and information technology is in our scope of services and for the successful operation of such facilities is necessary. The distribution systems are manufactured with our own staff here in the house. In these businesses, we build the number of employees from stable.

How many employees do you employ?

WOLFF: We have been employed continuously for over ten years, 280 employees, spread over our head office in Göppingen and our offices in Berlin, Leipzig, Ludwigsburg.

In which areas?

WOLFF: We offer a complete range of electrical and communication technology and see us here as a total service provider. Whether business or pleasure, we equip the house from classic to office complex or industrial plant building. The occupation of the necessary core competencies is well trained and flexible staff, particularly for the areas of renewable energy is a very central issue. Other areas of responsibility, such as the rent construction of wind and biogas plants provide, in addition to the use of solar energy has good prospects for our employees.

They stressed that you keep your employee base constant. Do you also like?

WOLFF: We are involved heavily in the training. We currently employ 40 trainees and have completed all currently an educational partnership with the Albert Schweitzer School in Göppingen to establish important contacts in advance and to set the course.

More solar energy in the Czech Republic

2010-12-03T07:41:00.000-08:00

Czech President Klaus on Friday had a "positive" news for claims to the Austrian public: "We have now moved on solar energy." Czech Republic will therefore in future less need for "dangerous" energy sources have, Klaus said after a meeting with President Fischer and Lower Austria's Governor Pröll in Geras.

Fischer stressed that "confess rules" Austria and the Czech Republic to that every country has its own energy policy and decide is responsible for it, but at the same time take care of the concerns and arguments of the neighborhood. Klaus confirmed this. He added: "We believe in global warming." Therefore, future not so much energy for heating, the Czech president, who is known for his skepticism about measures to mitigate climate change.

He was also skeptical about the time perspectives of the planned expansion of the North Highway (A5), which will link Vienna with Brno. "Whether I have the experience," asked Klaus. Governor Pröll said: "With a little faith in God (...) I am hopeful that we can use three of the northern motorway yet.

Pröll said that it had been fixed now, both on the Czech and Austrian side on the final routing. "We expect that 2013, 2014 direction can be started with the construction of border."

Transport issues are, according to Governor Pröll a focus of cross-border cooperation. The second is a flood early warning from the March. Fischer and Klaus praised the bilateral relationship as "very constructive" and "very positive".

Solar energy systems for roofs in Germany

2010-12-03T07:39:00.000-08:00

Munich. Solar energy is a topic that has in recent years in Germany increased more and more important.

Solar energy is a topic that has in recent years in Germany increased more and more important. The decision whether to install solar panels on the roofs of busy homeowners in Germany, therefore increasing. Since solar energy system solar system but is not the same, the different types of energy are defined first donation.

In solar thermal systems passes through a liquid substance to a medium. Thus, the liquid is heated by sunlight. This type of solar heating systems is often used for water heating in homes.

In contrast, it is in thermal solar power plants to significantly larger plants that generate electricity usually in larger quantities.

In photovoltaic systems, solar energy generated DC, as a result of using an inverter in the regional electricity circuit is passed.

Most homeowners are not aware of these distinctions, however. Rather, decides on the basis of use objective, what kind of solar system installed on the roof. Nevertheless, here, as are also other purchases, the price comparison first. Solar thermal systems are already available quite cheap. When the other two described types of solar systems has mostly counted with significantly higher costs. Interested parties should, however, the purchase of solar panels not only think of the costs. Rather, households with solar energy to make an important contribution to environmental protection.

Installation of solar systems
For the installation of solar panels on the roof, a local specialist will be contacted. Many roofing companies in Germany have already specialized in the installation of solar systems. The expert should first check the roof on his fitness and then connect a comprehensive advice to the customer. The installation is also on the professional, as has this right only on the equipment for anchoring and connections of the system. DIY and hobby tinkerers is strongly recommended that you try to to the mounting of solar systems.

Pitfalls in solar energy

2010-12-03T07:36:00.000-08:00

photovoltaic systems are not covered by homeowners insurance automatically

Bergisch Gladbach - More and more households produce their own electricity or supplement their existing heating system with a photovoltaic system on the roof. The share of photovoltaic installations grew in German households in recent years by more than 60 percent. What is the environmental aspects of a positive development may, in case of damage occasioned by the risks in property insurance for homeowners angry: Then that is when the insurance does not cover the costly photovoltaic solar panels on the roof.

"Miss many residential buildings insured to obtain information, what protection to the existing policy is an actual and know, therefore, that the energetic masterpieces are not automatically covered," shows the professional practice of Jens Grönke, Expert and Managing Director of Regudat Ltd. "In this context information then only a few homeowners insurance on their buildings to upgrade to the roof, "he added. In a smaller storm damage to the plant can get quickly to the insured a few thousand euro for repair. In addition, the entire building is underinsured, as the new acquisition of a photovoltaic solar renewable energy system increases the overall value of the building significantly. this is not recalculated and confirmations, insurance, insurance value, the causes of this increased under-insurance. The sum insured for the building is located below the currently valid insurance value and needs to be adapted.

Shall recommend the expert to examine as soon as possible to provide the protection offered by current policy of homeowners insurance and, if necessary, to extend this 'danger' photovoltaic system. "In case of doubt should be anticipated, the broker, insurance agent or pull in doubt, the insurance company to rate themselves," said Jens Grönke. This can incidentally also be aware of whether, for example, operator error, sabotage or damage are also covered in the induction system. "Of course our office is also available for questions. As an insurance bureau is among other things our goal to educate about insurance stumbling blocks in building and maintaining insurance against financial loss, informed Grönke.

expansion of solar energy will be accelerated

2010-12-03T07:26:00.000-08:00

Dusseldorf - E. ON to expand its solar activities and will continue to make solar energy as the second pillar in the field of renewable energies. Within the next three years would make E. ON in his own words photovoltaic and solar thermal power plants for commercial production. The company enjoys in the photovoltaic sector already has a well equipped project pipeline of 300 MW in France and Italy. In Spain, E. ON to build two solar Abengoa Solar thermal power plants with a total capacity of 100 megawatts, the company said.

The Germans are nuclear critics

2010-12-03T07:19:00.000-08:00

Old gate. The running times of nuclear power plants extend and promote the expansion of renewable energies - both holding EU Commissioner Günther Oettinger for "reasonable and necessary" as the "Forum Altensteig" erklärte.Eine hour to put the former Prime Minister of Baden-Wuerttemberg and current EU Commissioner of the questions Frank Krause. Had gathered along with representatives of politics and leaders from industry, trade and commerce.

Mayor Gerhard Feeß not only took over the greeting born in 1953 in Ditzingen politician, he practiced criticism "on the zigzag course of the Federal Government" in terms of energy. Old trail had assured that the terms of the nuclear power plants are not renewed, and had then made investments in the millions.

wanted to-day politics Oettinger not comment directly, but the European coverage described with power. 14 of the 27 EU countries relied on nuclear power. "But it applies to France 80 percent of its needs." Sweden had made his exit to reverse. And the Chinese would build just 25 units. This should not be disregarded in the assessment. "But in no other country in the world, the heart swings as high as in Germany."

According to the Commissioner of the energy demand increases over the next decades, "dramatic". dine The goal by 2030 about 20 percent of electricity consumption from renewable sources (wind, solar power, hydro, biomass, geothermal), Oettinger has to be realistic. At the same time will result shows that one in the foreseeable future could do without nuclear power. The final disposal of nuclear waste should not be moved abroad, "not to Siberia."

Because the wind farm in Simmersfeld the earnings, according to the operator failed to meet expectations, the question arises whether a gap between desire and reality. The 57-year-old is convinced that the plants would no longer supported so strongly. His motto is: "Wind in the north, the sun in the south." When Germany is heavily dependent on gas from the delivery of third countries. "We are thus vulnerable to blackmail?" Oettinger denies this "Russia wants to sell, to build new roads, as is the dependence of each other."

Although the Germans knew very well informed what a liter of gasoline costs, but not how much they must pay for the kilowatt hour of electricity, can not understand Oettinger. "For me the washing machine is turned on, not when the price is very high, at midnight, when I go to bed."

Finished, the hour-long interview with personal questions to the Commissioner. No, the activities in Brussels, had not originally been on his career plan, but now he feels very comfortable. After Altensteig he would like to come "because my brother is gone to St. Christopher's School, also had his parents had an apartment in masters.

The solar heating system in Kabul is ready

2010-12-03T07:14:00.000-08:00

Aid project initiator Siegfried Geisser and companies in the Upper Allgäu pass - Surgery now available in winter
The Afghan and German flags were hoisted. An Afghan minister sang a verse from the Koran poignant. The Afghan Health Minister Dr. Rahim Pashtoonya and clinic operators Gerolf Dechentreiter cut through the red tape. Dechentreiter stirred thanked all contributors, especially on the ideas, architect Geisser Siegfried of the Rotary Club Oberstaufen-Immenstadt. "It was a godsend," he said. And two Afghan ministers praised effusively the Allgäu craftsmen and the German engineering and craftsmanship.
With the opening of the heating and cooling system of Irene Salimi Children's Hospital in Kabul, a goal was reached that seemed completely unrealistic, as Ulrich Kirsch of Sonthofen, chairman of the Armed Forces Association, two years ago at the Rotary Club Oberstaufen-Immenstadt in Thalkirchdorf about the hospital said. These only children's hospital in Afghanistan with European standards had to fall, when it is in the 1500 m altitude in Kabul cold, set the whole operation activity, because no heating was present. That was the architect Immenstädter Siegfried Geisser no peace: he flew to Kabul and observed that the solution is a solar system. Geisser contacted the company Holzberger in fish.

The company owner was quick, as Geisser the entire planning and perform for free - and later, as the realization of decency of the project, found the company enough skilled workers in the Upper Allgäu, who took an adventurous trip to Kabul and the week-long employment is up.

Nevertheless, the project would have been prohibitively expensive, if not the Foreign Office, the Dechentreiter Foundation, the St John's Ambulance, Misereor and other Rotary and Kiwaniclubs were entered. 60 percent took over the Foreign Office. And a variety of individuals, according to Rotary donated after a call in our newspaper.

In the implementation, there were a lot of adversity, such as the Rotary Club Immenstadt-Oberstaufen explains: Because of the tax liabilities of a carrier material container remained on the Afghan-Iranian border are for weeks. A container shipment was seized by Chechen and Arab Taliban and flared. Because not "smeared", was also delayed in customs clearance. The aircraft with the replacement container for the captured could not be run in Amsterdam because of the volcanic eruption in Iceland. The entire electrical system of the hospital turned out to be far away from European standards. She was transferred from scratch. The Allgäu, who worked in Kabul and locals Desboutins had to improvise a lot. As an essential material in April had not yet arrived, flew back to the Upper Allgäu, a few weeks later, then tackle the final stage.

Now the children's hospital is one of the most advanced solar heating systems in the world worth having around one million euros: For 2000 square feet ceiling heating, 147 solar tube collectors with heat exchangers, storage space, oil burner, refrigerator and hot water system installed and connected. As a result, each year hundreds of children saved by surgery, it is said of Rotary.

Why saving sometimes really hurts

2010-12-03T07:10:00.000-08:00

From our editor Michael Schmitz
Higher fees, lower subsidies: 54 still secret proposals are submitted to external experts to the City Council as saving ideas for 2011. You will not always meet with reciprocal love.

Three years ago, Margot waste stream and Manfred Maxi Mini set for a warm Nordbad one - now the heat could still be stopped. TV photo: archive / Roland morning Trier. Those who submit proposals for saving power are not necessarily popular. This experience had to the green City Council Gerd Dahm, make mid-2007 when he brought the issue into play, whether it was really necessary, already at 6 clock in the Trier Nordbad to have a water temperature of 24 degrees. This has indeed been at night to pre-heat with gas, solar heating alone would not create. What followed was an outcry of indignation among the swimmers and early 2500 from Manfred Maxi Mini, the head of the Independent Citizens Movement Maxi Mini (UBM, today FWG) collected signatures for a warm Nordbad. The savings proposal was quickly off the table. Now he is back.

Mobilized and collected signatures

This time not from Dahm brought into play, but by external experts. Three employees of the Municipal Community Office for Public Management (KGSt, see extra) since early October have developed energy-saving suggestions. Overall, they can be loud Government identified more than 600 topic areas, where savings in the coming years. 54 proposals will be implemented in 2011. Details do not refer the city nor the KGSt because the discussion in the Steering Committee on Tuesday not want to prejudge - then will decide what will be included in the budget. Overall, the city could be saved with the proposals KGSt 1.6 million euros. The smallest proposed bringing 750, the largest 300 000 euros, said the press office with request to TV.

"Any proposal to put public finances take an audience anywhere," says Dirk Greskowiak, head of the division of project support KGSt who has worked in Trier on the proposals. "No matter what community, we advise: Most of our work are not at all funny." The same goes for some of the proposals that are in Trier for debate. By TV information, for instance, involves

Business tax: An increase has been discussed, but again from the table.

Fees: The fees in the municipal music school could be increased. Also on the table is the proposal to increase nursery or kindergarten fees.

Grants to independent providers: A recommendation is to KGSt TV information to reduce the subsidies from the city to free carriers (eg, social organizations or associations such as the Palais eV or the mobile game action). 200 000 € at a volume of five million euros at present is the question.

Copy Fee: For a discussion is, publishers of every student in Trier a monthly € for copies of education materials. 90 000 € extra revenue should bring the year.

Group grants: The interview is the reduction of subsidies from the city to the city council factions. The fund thus secretaries, partly CEO post. Also for the allowance of the city councils, there is a reduction proposal.

Entrance fees and user fees: Independent of KGSt list has been discussed behind the scenes, such as whether the municipal swimming pool entrance fees should be raised. Conversely, it is there, of course - and this is the proposal to KGSt - reduce material costs, in other words, for example, the water temperature in the lower Nordbad.

Everything so far only suggestions, as I said. Manfred Mini Maxi times already announced that he would watch the whole thing critically. It will not be the only response.

Solar heating for Children's Hospital is ready to help

2010-12-03T07:07:00.000-08:00

This is done with the support of Oberallgäuer company built solar heating in a hospital in Kabul. As the Local newspaper reports, the Children's Hospital the only hospital in Afghanistan with European standard.
Before the construction of Solar heating system they had to autumn, however, set the entire operation activity, because no heating was present. The project was initiated by the Rotary Club of Siegfried Geissler Immenstadt-Oberstaufen. After his call to local media Oberallgäuer many companies for the construction of the solar heating system have donated. The solar system has a value of about one million euros. 60 percent of the cost has taken over the Foreign Office.

solar geyser set

2010-06-25T10:53:00.000-07:00

This is a great solar geyser set which adopted high technology of 24 Vacuum glass tubes with heat pipes (No water in tubes) The size of the pressurized tank is 50 gallons Its fit for the use of dishwasher, washing machines, bath or showers for (1-8 people) in a household It combines the high efficiency absorptiveness with a fashionable design. Features: Two layers of evacuated glass tubes and one absorber fin to ensure high absorption and conductivity. Heat conducted by the medium inside heat pipe transfers the heat faster and more efficiently. Reliable high pressurized water inner tank of 1.5 mm thickness and 55 mm of insulation to lockup the temperature. Freeze proof. Since there is no water in the vacuum tubes it will not freeze - ever. A couple of hours of daylight are enough to have a permanent hot water supply even on rainy and cloudy days, since the glass vacuum tubes absorb infra-red and ultraviolet rays. Since the vacuum tubes have a circular shape always the sun is striking their rays perpendicular to the tubes If a tube breaks there is no water leak If a tube breaks it can be easily replaced without the system having to be shut down. No lime or water scale. Turn on the tap, there is immediately hot water and the water is so clean because it uses the water directly from the tap, not from the tank When you take a shower you feel the pressure of the water, like feeling a relaxing and powerful massage. Thermal tank keeps the water hot up to 3 days if there is rain or cloudy days. Electric backup heater of 1500W. A useful if weather condition does not improve. Digital Solar Water Temperature controller to keep your water hot at your temperature desired. Free maintenance. DIY Installation easy to follow step by step. Can be installed on Ground, Flat or Pitched Roof 15~ 20 years life span. Manufactured by a company under ISO-9001 International standards and CE Certified.

Solar Water Heating Book review

2010-02-03T03:23:00.000-08:00

We are looking for a good book review on "Solar Water Heating: A Comprehensive Guide to Solar Water and Space". The book review shall be punished on this site.

Government declares war on power wastage

2008-01-27T12:06:00.000-08:00

....Incandescent lights will be replaced by more efficient compact fluorescent lights. The government wants to get a million solar water heaters into homes, institutions and businesses, with subsidies of 20 percent to 30 percent depending on the cost of the units, which can be R7 000 to R20 000.Housing laws will change so all new houses must have solar water heating with electric geysers as a back-up, and switches to stop geysers and stoves being on at the same time. Insulation for ceilings, geysers and windows will be required.Smart meters will eventually be rolled out, allowing Eskom and municipalities to switch off remotely all geysers, laundry appliances, pool pumps and other appliances during peak demand. Government concessions will be issued to businesses to promote the sale and use of gas, mainly to domestic users for cooking.The lights are expected to save 800MW, the solar water heating 650MW, the smart meters 3 265MW and the move to gas 500MW. The government will also spend R400-million to convert all traffic lights and public lights to solar power with battery back up.Motorway lights will be shut down. Small airports will be turned off at night. The entire hospitality industry will have to change water heating to solar power, with electric back-up....

Source

solar geysers blog

2008-01-26T04:33:00.000-08:00

information on solar geysers to be presented here.