Photovoltaic installations for selling the produced energy:
In this type of installation, all the energy produced is sold to the electricity distribution company or to the free market and is recorded with a separate electricity meter. The company offers turn-key delivery and installation of grid-connected photovoltaic systems as well as real-time remote monitoring systems and power management of the feed in power to the grid from a PC, tablet or smartphone.
Photovoltaic installations for own consumption with a bidirectional electricity meter and buy up of the 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 only the insufficient energy is drown from the grid. 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. The company offers turnkey delivery and installation of grid-connected photovoltaic systems for own consumption with a bidirectional electric meter and surplus-purchase, as well as remote real-time monitoring systems and power management of the feed in power from a computer, tablet or smartphone.
On the graph at that point, the total consumption of all consumers in the site is 516W, the energy used by the grid is 0 W, that is, all the necessary energy is produced by the photovoltaic plant, even a surplus of 1892 W that is fed to the grid.
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 delivery and turn-key installation of photovoltaic systems connected to the grid with dynamic power management for own consumption without return to the grid. We also offer real-time remote monitoring systems for this type of installation and power management to the network from a computer, tablet, or smartphone. The photovoltaic installation can be combined with a solar thermal DHW installation to increase overall efficiency.
Grid-connected Accumulating photovoltaic installations for 24 hours use of solar power and UPS function – during the 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 grid 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 network to operate. This type of installation can be used to power remote objects, production, buildings, security, video surveillance, lighting, villas, 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 available or other power source, but grid systems can also be used.
Upgrading of existing photovoltaic installations with addition of storage and UPS function:
If you already have a network-connected photovoltaic installation for your own consumption, regardless of the brand of the inverters used so far, it can be upgraded with additional devices so that the surplus of photovoltaic energy is stored in an accumulator and then used with priority before it is consumed from the grid. It can also be supplemented with a back-up function (UPS function) when the power supply is dropped.