With advanced maximum power point tracking (MPPT) technology
Synchronous high frequency high conversion rate
AC 0 angle with high precision auto-detection
Input and output is fully isolated to guarrantee electrical safety
6 grade power search with multiple parallel stacking availability
The transition from a centralized inverter to distributed inverters optimizes energy collection. WVC 300 is equipped with high performance MPPT (Maximum Power Point Tracking) technology, is cable to track changes in the solar luminosity and control different output power, effectively capture and collect sunlight. The inverter output power can provide load priority use, extra electricity to the grid, and reach 99% electricity transmission rate. It uses IP65 waterproof streamline cabinet, can effectively prevent rainwater on the surface.
Most Helpful Customer Reviews
I was excited to get this to replace one of my 'purple' 500W GTI's I got here in Amazon. The purple unit's efficiency was no more than 60-65% at best and it isn't weatherproof. The WVC300 build quality is quite good.
I have one of these units hooked to a Renogy RNG-250D 250W 60cell 24V monocrystalline panel. After a week of evaluation of the WVC300, here's a typical measurement.
12noon in mid-summer 6/30/16 here in San Jose, 37degree latitude, completely clear sky, full sun. Backside panel temperature = 64C, outside air temp = 32C
Theoretical max output of my panels after 0.44%/C above 25C temperature derating spec is 250*(1-(64-25)*0.0044) = 206W
I measure 8.51A @23.5V input to the inverter = 200W input, so it's not too far off
According to my Kill-A-Watt meter, inverter output is 171W AC output, PF = 0.90
Inverter efficiency = 171/200 = 85.5%
Not bad however, I notice a consistent 15-20W...
Tried two versions of this grid-tie inverter http://www.amazon.com/gp/product/B00BS2C75U?redirect=true&ref_=cm_cr_ryp_prd_ttl_sol_0 which didn't work with 2 32-cell panels in series or parallel. This inverter worked in series (same as 1 72-cell panel) plus it's waterproof. Recommended.
wow it works! first time a Chinese made inverter ever has worked simple too have wasted money on solinba and other worthless Chinese crap but this IS THE ONLY WAY TO GO FOR GRID TIE no heavy cables just an old extension cord from panels to outlet of course payback at 300 watts is years to come BUT IT IS FREE ENERGY
The authorised South African distributor of this product is under no obligation to honour the manufacture's guarantees/warranties or to provide after-sales service.
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