KACO blueplanet 3.0 NX1 M2 KACO blueplanet 3.7 NX1 M2 KACO blueplanet 4.0 NX1 M2
KACO blueplanet 5.0 NX1 M2
Page 28
6
Information to dynamic feed-In
6.1
Regulation behaviour
From a system output of 7 kWp, a digital feed-in meter or a remote-control option is currently still mandatory. Active
power limitation is the simplest option here. This can be done with all NX1 devices via the smart meter or a data logger.
With the future EEG 2023, the expansion of photovoltaics is to be given an overriding public interest. Thus, for new PV
systems up to 25 kW that are connected to the grid from 01 January 2023, the maximum generation is envisaged. This
means the abolition of the limit of 70 % of the nominal capacity that may be fed into the public grid. Consequently, a solar
generation meter (smart meter) is no longer necessary.
6.2
Raising the active power limit
A Smart Meter or data logger must be connected so that the feed-in limit of 70% can be raised. The total consumption is
transmitted to the inverter/data logger by the additional Smart Meters (per phase) so that it can determine a new
maximum feed-in power.
If you compare the feed-in power of a PV system with the consumption of a single-family household, you will get the
following graphic:
Fig. 99.
Diagram comparing the energy demand of a single-family house and PV output
Legend
1
Energy demand of single-family house
3
70% feed-in capacity (yellow area)
2
70% fixed feed-in limit (grey line) – Control
command in the inverter (Chapter 2.5 on Page 11)
4
Lost feed-in power (red area)
It can be seen that there is a constant base load, especially at night (continuous/standby operation of consumers).
Based on the following graph, it can now be seen that a significantly lower power loss of the PV system can be expected
due to the transmitted self-consumption values.
00:00 02:00 04:00 06:00 08:00 10:00 12:00 14:00 16:00 18:00 20:00 22:00 00:00
Uhrzeit [hh:mm]
1
3
2
4
Pow
er
[k
W
]
10
9
8
7
6
5
4
3
2
1
0
