Photovoltaic Sytems

On grid, Off Grid, with or without energy storage

PV Systems: brief description

Nextel Service offers leader solutions in PV systems with or without stockage. On grid and off grid solutions, from few kWs to hundred kWs systems thanks to all made in Italy technologies

On grid systems

In the PV systems photo-voltaic modules produce energy as direct current when they are hit by sunlight.

The inverter transforms the direct current from PV modules into alternate current which can be used in your home or in your company, reducing or eliminating the demand of energy from Public Network.

In some countries it is possible to sell the energy produced by PV modules but not used in his own home.

Off grid systems

Off grid PV systems are always made by PV modules which, during the day, produce energy transformed in alternate current by the inverter.

But in this case, PV system is not connected to Public Network. The user’s energy needs can therefore be met by the PV system itself and with the help, for example, of a Gen Set or of a energy storage system.

 

Energy storage sytems are convenient?

Energy Storage System

The storage batteries allow you to store energy to be reused later (usually the excess energy produced by the PV system during the day) for example during  the evening.

The storage system can be convenient but a careful analysis of consumption is needed

Most common used batteries in PV Systems and depth of charge:

Lead acid/Gel batteries
50%
Litium batteries
90%

Most common used batteries in PV Systems and n° of cycles:

Lead acid/Gel batteriesl
2000/2500
Litium batteries
8000/10000

Customer's needs analisys

Which PV System?

Which is the right size for my PV system? Better monocristalline or polycristalline modules? Energy storage system is needed? Can I be totally free from energy Public Network?

There are not standard answers, every situation must be analyzed and studied:  it is necessary to know the available surface for PV modules, which is the type of surface. It is necessary to know user’s consumptions and future needs.

Nextel Service solutions

Our solutions and our services

Nextel Service offers leader solutions in PV systems with or without stockage. On grid and off grid solutions, from few kWs to hundred kWs systems thanks to all made in Italy technologies.

We have high end solutions but also entry level solutons with lower costs but always reliable.

  • Customer’s consumption & needs analysis
  • System design & return on investment analysis
  • Turn-key solutions
  • Full supply of PV system, accessories included
  • On site Nextel engineers during installation & final test if needed
  • Remote control (via Internet) of installed system

Contact us for a quote

We will send you our proposal without any commitment