Photovoltaic installations for selling the produced energy:
In this type of installation, all the energy produced is sold to the electricity distribution company or the free market and is recorded with a separate electricity meter. The company offers turn-key supply and installation of grid-connected photovoltaic systems as well as real-time remote monitoring systems and power management to the grid from a PC, tablet or smartphone.
Construction of photovoltaic installations for own consumption with a bidirectional electricity meter and buy up of surplus energy:
In this type of installation, when the amount of electricity generated by the photovoltaic installation is less than the consumption of the consumers, the produced amount of electricity from the photovoltaic installation is subtracted from the electricity consumed by the grid, thus draw from the grid difference only . In the case where the amount of electricity generated by the photovoltaic plant is greater than the consumption, the difference returns to the grid by “rotating the meter back”, and that surplus is buy up at surplus prices set by the energy distributor or the free market. To these installations, a real-time remote real-time monitoring system is also being built and power management to the network from a computer, tablet, or smartphone.
Photovoltaic installations for own consumption without returning to the grid: In this type of installations, when the amount of electricity generated by the photovoltaic installation is less than the consumption of the consumers, the produced amount of electricity from the photovoltaic installation is subtracted from the electricity consumed by the grid , thus only the difference is drawn from the grid. In the case where the available energy from the photovoltaic system is greater than the consumption, the inverter power is automatically limited so as to be equal to the total power of the consumers, the “meter does not rotate”. The company offers supply and turn-key installation of photovoltaic systems connected to the grid with dynamic power management for own consumption without return to the grid. To this type of installation, we also offer real-time remote real-time monitoring and power management to the grid from a computer, tablet, or smartphone. The photovoltaic installation can be combined with a solar thermal water installation to increase overall efficiency.
On the graph at that point the total consumption of all consumers in the site is 1873 W, the energy produced by the photovoltaic plant is 1776 W, the energy used is from the net is 97 W.
Grid-connected Accumulating photovoltaic installations for 24 hours solar power and UPS function – when there power blackout of the grid:
In this type of grid connected systems, when the available photovoltaic energy is more than the consumption of all consumers, the surplus is stored in a Li ion battery. Excess energy can also be used to heat domestic hot water with priority. When the consumption becomes greater than the energy produced by the photovoltaic system, the stored energy in the battery is first used, and when it is insufficient, then the shortage of the network can be used. In this way, accumulated energy during the day is also used at night and the use of solar energy is possible 24 hours a day. With proper sizing of the system, it is possible to almost completely meet the energy needs of the photovoltaic system. This type of system can also offer a back-up power failure function (UPS feature).
Autonomous photovoltaic installations
Autonomous photovoltaic installations do not require a grid to operate. This type of installation can be used to power remote objects, production, buildings, security, video surveillance, lighting, vans. The produced solar energy through photovoltaic panels is stored in batteries and can then be used either as a DC power supply or to use an off grid inverter to convert the voltage to a 230 V phase or a 380 V phase.
Autonomous installations using wind and solar power:
Typically, this type of installation is used where there is no grid or other power source, but also energy from the grid can be used.
In some areas, wind power can make a significant contribution to total energy production. Wind power is available in the evenings and can dominate in the winter or in cloudy and foggy weather, that is, when it is smaller than the photovoltaic, so that the two types of energy are complementary. Typically, these systems work with a battery.