How does Photovoltaik works?

Clean Power from your own plant

Due to the low voltage of an individual solar cell (typically ca. 0.5V), several cells are wired in series in the manufacture of a "laminate". The laminate is assembled into a protective weatherproof enclosure, thus making a photovoltaic module or solar panel. Modules may then be strung together into a photovoltaic array. The electricity generated can be either stored, used directly (island/standalone plant)or fed into a large electricity grid powered by central generation plants (grid-connected/grid-tied plant) or combined with one or many domestic electricity generators to feed into a small grid (hybrid plant).^[1] Depending on the type of application, the rest of the system ("balance of system" or "BOS") consists of different components. The BOS depends on the load profile and the system type. Systems are generally designed in order to ensure the highest energy yield for a given investment.

The power that one module can produce is seldom enough to meet requirements of a home or a business, so the modules are linked together to form an array. Most PV arrays use an inverter to convert the DC power produced by the modules into alternating current that can power lights, motors, and other loads. The modules in a PV array are usually first connected in series to obtain the desired voltage; the individual strings are then connected in parallel to allow the system to produce more current. Solar arrays are typically measured under STC (standard test conditions) or PTC (PVUSA test conditions), in watts, kilowatts, or even megawatts.

Costs of production have been reduced in recent^[when?] years for more widespread use through production and technological advances. One source claims the cost in February 2006 ranged $3–10/watt while a similar size is said to have cost $8–10/watt in February 1996, depending on type.^[2] For example, crystal silicon solar cells have largely been replaced by less expensive multicrystalline silicon solar cells, and thin film silicon solar cells have also been developed recently at lower costs of production. Although they are reduced in energy conversion efficiency from single crystalline "siwafers", they are also much easier to produce at comparably lower costs.

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A grid connected (pictuere on the left side) system is connected to a large independent grid (typically the public electricity grid) and feeds power into the grid. Grid connected systems vary in size from residential (2-10kWp) to solar power stations (up to 10s of GWp). This is a form of decentralized electricity generation. In the case of residential or building mounted grid connected PV systems, the electricity demand of the building is met by the PV system. Only the excess is fed into the grid when there is an excess. The feeding of electricity into the grid requires the transformation of DC into AC by a special, grid-controlled solar inverter.

In kW sized installations the DC side system voltage is as high as permitted (typically 1000V except US residential 600V) to limit ohmic losses. Most modules (72 crystalline silicon cells) generate about 160W at 36 volts. It is sometimes necessary or desirable to connect the modules partially in parallel rather than all in series. One set of modules connected in series is known as a 'string'.

Planning, Installation and commissioning and then?

The engineers of the company HR control has specialized knowledge of the products of all considerable manufacturers. HR control advises and plans producer-independently. With the experience of many, also more complex installations in the private

For owners we carry a comprehensive, producer-independent consultation out. We supply the co-ordinated plans as well as the manufacturer-neutral tender documents for her architects, planner, craftsman. By co-operation with us to electrical specialized enterprises, are we admitted in the situation us purposefully at your solarly project to be concentrated. As an owner we support you in all interests of your building project, from the conception, over the advertisement, up to the support of the execution. We stand for you advisory to the side and support you with the realization of your special requirements. On your desire and examine we accompany the achievements of your contractors, up to the reduction of the work. 

We guarantee that the given cost framework is kept.

Gladly we install its completely individual Photovoltaik plant for you. We guarantee a thorough planning and a clean and complete documentation of its Photovoltaik plant. Our service technicians care for products of the following Photovoltaik manufacturers:

Schüco, Conergy, Sanyo, Kyocera, SMA, Sunways, Sharp, BP, Fronius, etc.

After start-up and delivery of the plant a revised END documentation, also into foreign languages, takes place also in English Language.

 

 

 

 

 

 

 

HR control takes over the start-up of your plant and is to you naturally also after completion of the order still at the disposal. HR control is well-known for the fact that to each time also the success of the customers as well as the acceptance of the new system stand in the center of the interest. HR control documents you your solarly project. With the experience of many, also more complex technical documentations in the private and building of trades the coworkers of HR control are absolute professionals in the topic. Thorough planning and a clean and complete documentation are fundamental conditions for an efficient project organization and for a smooth start-up. Our documentation is provided with most modern CAD tools and very positively evaluated by our customers. They would drive after arrangement with us, the achievements out, you think themselves capable of the remainder settle HR control. The result is an inexpensive provided and technically perfect - functional plant. The aforementioned is valid not only for the production of its Photovoltaik plant but also for the production of your electrical installation. Here we would drive the decrease out of the work implemented by you also for you. We help you during the registration for the EVU and examination with reduction of the installation according to DIN VDE 0100 part of 610 ajar against the E-checks of the electrical guild.

Gladly HR control takes over also maintenance for its Photovoltaik plant. Our Servictechnker cares for Photovoltaik of products of the following manufacturers:

Schüco, Conergy, Sanyo, Kyocera, SMA, Sunways, Sharp, BP, Fronius, etc.

Our team is qualified to examine the Photovoltaik plants of our customers to wait or to care for these after your needs.

Completely besides: we belong to the species E