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Product Overview
2.7.2 Feed-in Priority (Priority: Loads > Grid > Battery)
The feed-in priority mode is suitable for areas with high feed-in subsidies, but has feed-
in power limitation. The power generated from PV is directed towards supplying the
loads. Any excess power beyond the load requirements will be fed into the grid, and the
remaining power will be utilized to charge the battery.
Feed-in Priority
(Assu m ing p eak pow er f rom 7 :00 to 23:0 0)
Id ea: Peak electricity sellin g, lo w v a lley charg in g
7:0 0
0
PV p owers the load
23: 0018 :0 0
Power
Time Line
Load p ower cu rve
Cha g rin g
Forced ch arg in g tim e
Stan db y
Oth er
Disc harging Disch a rg in g
Allowed d isch a rg ing p eriod
Stan db y Stan db y
Oth er
Pu rcha se electricity
Self use
Sell electricity
Self use
Purc hase
ele c tric ity
PV an d b attery p ower the load
Battery
statu s
Battery
SO C
Pu rcha se
statu s
Time
settin g
PV an d b attery
pow er load
Th e g rid su p p lies p ow er to the
loa d an d ch arg es the batter y .
Th e b attery ch arg ing cap acity
(Charge battery to) can be set.
Su rp lu s w ill b e
so ld to the u tility
PV input pow er
Figure 2-12 Feed-in priority (without grid limitation)
(Assu m in g peak p ower fro m 7: 00 to 23: 00)
Id ea: Peak electricity sellin g, low valley chargin g
7:0 0
0
PV p owers th e load
23: 0018 :0 0
Power
Time Line
Load p ower curve
Cha g rin g
Forced ch arg in g time
Stan db y
Oth er
Disc harging
Disch a rg in g
Allowed d ischa rg ing p erio d
Stand b y
Stan db y
Oth er
Pu rchase electricity
Self use Sell electricity
Self use
Purc hase
ele c tric ity
PV an d b attery p o wer th e load
Battery
statu s
Battery
SO C
Pu rchase
statu s
Time
settin g
PV an d b attery
pow er load
Th e g rid su pp lies p ower to the
loa d an d ch arg es th e b atter y.
Th e b attery ch arg ing cap a city
(Charge battery to) can be set.
Su rp lu s w ill b e
so ld to the u tility
PV input pow er
Cha rg e th e b attery
Cha g rin g
Stand b y
Figure 2-13 Feed-in priority (The grid has limitation)