PHOTOVOLTAIC SYSTEMS

There is no doubt that solar energy is the most abundant source of energy on earth. Every year the sun provides energy corresponding to 10,000 times the world consumption needs. It means that we get per hour enough solar energy to meet the needs of the planet for an entire year.

With the technology available nowadays, we can all benefit from this source of clean and inexhaustible energy. Photovoltaic systems can make use of this energy source, converting the solar energy directly into electric energy.
There are many advantages of photovoltaic systems:

Use of an unlimited resource of solar energy;
Available and affordable energy to everyone anywhere in the world;
Modularity - systems can go from mW in consumer products , to photovoltaic systems with MW ;
During operation, produces electricity without CO2 emissions or waste production;
Silent during operation;
Proven technology with useful life exceeding 25 years

Current technologies that integrate photovoltaic modules with inverters, storage systems and loads management systems , enable us to exploit this solar potential in multiple applications .


SELF CONSUMPTION SYSTEMS

The self consumption allows direct savings in the energy purchase to the electricity supplier, through the instantaneous consumption of energy produced by the photovoltaic system.
The technologies available today allow you to increase the level of self-consumption of the energy generated by several systems which enable for example to perform active control of loads.
The temporary  storage also allows to increase the degree of self-consumption, enabling the supply of energy at night that was generated in excess by the photovoltaic system during the day.

With the price of electric power to rise and Feed-In rates falling, the solar power self-consumption becomes more and more attractive. Storing surplus solar energy in batteries for later consumption, the solar power self-consumption can be increased up to 70 %.

Using for self-consumption the most of the energy generated by the photovoltaic system rather than inject this energy into the grid, allows you to see monthly reductions on the electrical bill, becoming more independent of the energy price increases.


NET MEETERING

With the arrival of the network parity, created by the continues rising in the energy prices and by the maturing of photovoltaic systems, which contributes to the decrease in the prices of technology and to the increase of its efficiency, new installations philosophies are becoming known, making possible self-consumption to the photovoltaic systems.

Net- Metering system allows that producers/consumers, favoring the self-consumption, store in the electricity grid the surplus energy produced, receiving credits that can be consumed when the production is not enough for their needs.


FEED-IN-TARIF

This is the photovoltaic application most commonly exploited in developed photovoltaic markets.
Connecting the photovoltaic system to the public grid, the energy produced is sold through a mechanism that guarantees a fixed subsidized price for an extended period contract.

It is used an inverter that converts the DC current generated in AC current compatible with the electrical grid (the same voltage and frequency).
The photovoltaic systems working in this regime can be installed in residential homes, commercial or industrial establishments, and also in large-scale photovoltaic plants.


OFF- GRID SYSTEMS

In places where there is no electricity available, photovoltaic systems allow to ensure the total supply of energy.
The systems are composed by the photovoltaic generator, charge controllers which ensure the correct supply to the battery system, the respective battery bank and by the inverters that besides insuring the conversion DC/AC, allows the supply of any kind of load, making the management of the entire system and working as a network management center.


Typically Off- Grid systems are used to carry energy to remote areas, working from a simple system to meet the basic needs of an isolated house, to large solar systems which act as mini power distribution networks with enough power to feed entire villages.
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