openculture alternative design

Victron replacement · 48 V · two Deye 8 kW in parallel

Project Anor on two Deyes

The direct alternative to today’s Victron setup. Two Deye 8 kW hybrid inverters work as one on the same four-pack battery bank. 32 Jinko 650 W panels feed their six built-in solar trackers, so the separate chargers, their combiner boxes and the battery monitor all go. Light loads run on the joined backup outputs; heavy loads run on the GEN ports as a smart load.

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Solar
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Battery
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Two in parallel
48 V
System voltage, 16S

Wiring schematic

Solar DC Battery DC Grid AC Home AC CAN to BMS, RJ45 Parallel link, RJ45 CT clamp lead
Select any block for its specs and wiring. The PV boxes open to show the wiring inside. Hover a block to trace its connections.

The layout at a glance

Heavy loads on the GEN port

    Upgrade path

        Sizing checks

        Do the strings and breakers suit the equipment they feed? Each check is worked out live from the datasheet numbers in the parts list, so it updates whenever the data does.

        10 °C

        Panels make more voltage in the cold, so voltage limits are checked at the coldest cell temperature you expect.

        Battery side

          How these are worked out
          • Cold voltage: Voc × panels in series × (1 + |temp. coeff.| × (25 °C − coldest °C)), compared with the charger’s absolute maximum PV voltage. The temperature coefficient comes from each panel’s datasheet.
          • Short-circuit current: Isc × strings in parallel, compared with the charger’s maximum PV short-circuit current.
          • Working current and panel power: compared with what the charger or tracker accepts. Going over isn’t unsafe; the charger trims the excess, which is called clipping.
          • String fuses and breakers: IEC 62548 puts their rating between 1.5 × Isc and 2.4 × Isc of one panel, and no higher than the panel’s maximum series fuse rating.
          • Surge protectors: their rated DC voltage should stay above the string’s cold open-circuit voltage.
          • Battery side: the battery breaker at 1.25 × the inverter’s maximum battery current; inverter draw at a near-empty 48 V and about 94% efficiency; current shared evenly across the packs; panel power against each inverter’s maximum PV input.

          A sanity check for readers, not a substitute for a qualified installer or Deye’s own sizing tools.

          Parts

          Tap a card to find it on the schematic