Solreach All In One ESS(12KW+32KWH)

Q1: What makes the Solreach 12KW 32KWh the right choice for commercial and microgrid applications versus the 6.5KW model?

The 12KW model delivers 12KW continuous output (double the 6.5KW's 6KW), a 24KVA surge (double the 6.5KW's 12KVA), and 32KWh battery capacity (double the 16KWh). Critically, it adds Dual MPPT inputs totalling 14KW versus the single 9KW MPPT on smaller models, and gains RS485 + RS232 + Dry Contact industrial communication that the 6.5KW model does not have. For any application requiring more than 6KW continuous output, integration with generator AMF panels, or SCADA connectivity, the 12KW model is the correct specification.

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Q2: How does the Dual MPPT architecture improve solar harvest in real commercial installations?

In a standard single-MPPT system, all strings must share the same operating point — if one string is partially shaded or oriented differently, every string underperforms to match. The Solreach 12KW uses two independent MPPT channels (9KW primary + 5KW secondary), each tracking its own global maximum power point. For rooftop installations with east-west split arrays, a building with mixed roof slopes, or a ground-mount array with partial tree shading, Dual MPPT can recover 5–15% additional solar energy per day compared to a single-MPPT unit of equivalent capacity.

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Q3: What does the Dry Contact output enable, and which commercial scenarios require it?

The Dry Contact interface outputs a potential-free relay signal that can directly trigger a generator's AMF (Automatic Mains Failure) controller when the battery reaches a configurable low-state-of-charge threshold. This eliminates the need for a separate relay module or control cable between the ESS and the generator panel — reducing installation cost and failure points. Commercial scenarios requiring Dry Contact: telecom towers with backup diesel, agricultural pumping stations with generator redundancy, clinics and cold-chain facilities mandated to maintain 100% uptime, and remote microgrids where grid failure triggers automatic generator dispatch.

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Q4: What is the battery charge and discharge current rating, and how fast can the 32KWh pack be fully recharged?

Maximum charge and discharge current is rated at 200A / 200A — the highest symmetric current rating in the entire Solreach ESS range (the 6.5KW model is 150A/150A). With 14KW of combined Dual MPPT solar input at full irradiance, the 32KWh battery (28.8KWh usable) can be recharged from 10% to 100% in approximately 2.3–2.8 hours under ideal solar conditions. Via AC grid charging at 160A max AC charge current, full recharge takes approximately 2–3 hours depending on grid supply quality.

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Q5: How does the 98% peak efficiency translate into energy cost savings for OEM buyers deploying at scale?

At 98% peak efficiency versus a competitor unit at 94%, the Solreach 12KW wastes only 2% of energy per cycle instead of 6% — a 67% reduction in conversion loss. For a fleet of 20 units each cycling 28.8KWh daily, this recovers approximately 8,064KWh per year (28.8KWh × 20 units × 365 days × 4% delta). At a conservative grid electricity cost of ¥0.6/KWh, that is ¥4,800 in annual energy savings per 20-unit fleet — without any additional hardware investment.

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Q6: What overload protection behaviour should system integrators plan for at the 12KW power class?

The 12KW model's overload protection operates in two tiers: (1) at 110% load (13.2KW), the system reports an error and turns off the output after 5 minutes — giving the inverter time to shed non-critical loads; (2) at 125–130% load (15–15.6KW), the output shuts off after 5 seconds to protect the inverter bridge. System integrators should configure load-shedding relays or smart circuit breakers on non-critical circuits (lighting, HVAC auxiliary) with trip priority below the 5-minute window to prevent nuisance shutdowns during demand spikes on critical loads like refrigeration or medical equipment.

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Q7: What are the logistics specifications and how many units fit in a standard shipping container?

Product dimensions: 360 × 495 × 1545mm (L×W×H). Packaged dimensions: 655 × 480 × 1630mm. Gross weight: 350kg per unit. At 350kg gross, a 20-foot container (max payload ~21,500kg) accommodates approximately 61 units; a 40-foot HQ container (max payload ~26,000kg) accommodates approximately 74 units — logistics planning should account for the oversized pallet footprint requiring floor-loaded or cradle-rack configurations. All units ship as UN 38.3 Class 9 dangerous goods with full MSDS, packing declaration, and test summary documentation provided by Solreach as standard.