Pv Modules; If The Available Energy Of Pv Modules Is Greater Than The Load's Need, Where Is Extra Energy Going; The Iss 1Play 6Tl Has A Pv Array Max Power Of 10 Kwp And An Output Power Of 6 Kw. What; Happens To The 4 Kw That Exceeds? Is It Used To Power The Batteries - Ingeteam INGECON SUN STORAGE 1Play Technical Manual

3.3 PV modules

3.3.1 If the available energy of PV modules is greater than the load's need, where is extra
energy going?
Even if the ISS 1Play is configured to not injecting to grid, it will not be any excess of energy because the
inverter inside the ISS 1Play will automatically regulate itself changing the MPPT configuration and just taking
the needed energy from PV modules.
It is important to know that this situation will only occur when batteries are fully charged, if they are not, extra
energy will charge them in any strategy.
This is done by moving the operating point from the MPP point, which is the maximum available energy from
modules, as it is shown in the next diagram:
3.3.2 The ISS 1Play 6TL has a PV array max power of 10 kWp and an output power of 6 kW.
What happens to the 4 kW that exceeds? Is it used to power the batteries?
Yes, extra energy from PV modules is used to charge the battery bank. When the battery bank has reached
the 100% charge level, the inverter will regulate its working mode as shown in 3.3.1.

3.3.3 Does the ISS 1Play have any surge arrestors to protect from PV over-voltages?

Yes, it does for protecting the ISS 1Play and due to the fact that most of the standards demand them as
compulsory.
Technical Guide
Figure 12: MPP regulation
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