ECOWORTHY-US Store via Aliexpress has
100W ECO-WORTHY Bifacial N-Type Monocrystalline Solar Panel on sale for $36.19 - $5 promo code
USDEALS5 at checkout =
$31.19.
Shipping is free.
Thanks to Community Member
thethingx for sharing this deal.
- Note: Price may vary by account or fluctuate slightly with currency exchange rates. You must be signed into your AliExpress account and have your address added to add items to your cart and place an order. You may have to manually type in the promo code to apply it at checkout. This item ships from a USA warehouse. For expedited customer service, please email [email protected].
Details:
- 100W N-type monocrystalline panel; 16BB (copy also mentions 12BB back cells); 25% efficiency; 18V; MC4
- Bifacial; 91.5% back light transmittance; 858 Wh/day under ideal conditions; up to 33% more power vs. traditional panels (as stated)
- 35.24 × 23.03 × 1.4 in; 14.55 lb; tempered glass; aluminum frame
- IP68 waterproof rating; IP65 junction box; pre-installed diodes; 2.95 ft cable
- 25-year durability claim
Top Comments
Sunlight is made of photons, which carry electromagnetic energy.
A Joule (J) is a unit of energy, and a Watt is an energy flow rate (1W = 1J/s).
A 1W device operates at a defined power level of 1J/s.
A 100W solar panel's photovoltaic (PV) cells absorb sunlight and convert some of the photon electromagnetic energy into electrical energy.
The panel delivers the converted electrical energy to a controller, power‑management system, or operating device at 100J/s.
PV cells are not perfect absorbers. In fact, 25% is pretty good for a budget panel.
So, if 1000J of sunlight hit a m^2 solar panel in one second, it converts about 25% of the incoming sunlight energy -- around 250J -- into electrical energy.
The other 75%? Some is reflected away from the PV cell, other converts to heat, panel operating loss, etc.
Why does the panel have a rate (i.e., 100W)? Because every part of the panel as a system -- as well as the systems or devices receiving the converted power -- has designed-in limits on how fast energy can flow.
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18 Comments
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Our community has rated this post as helpful. If you agree, why not thank
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So this panel converted 25% of the solar radiance to electricity to 100W in ideal conditions.
Nothing can reach 100% that would mean the panel looks completely black and is cold to the touch
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[A.] Sunlight is made of photons, which carry electromagnetic energy.
A Joule (J) is a unit of energy, and a Watt is an energy flow rate (1W = 1J/s).
A 1W device operates at a defined power level of 1J/s.
[B.] A 100W solar panel's photovoltaic (PV) cells absorb sunlight and convert some of the photon electromagnetic energy into electrical energy.
The panel delivers the converted electrical energy to a controller, power‑management system, or operating device at 100J/s.
[C.] PV cells are not perfect absorbers. In fact, 25% is pretty good for a budget panel.
So, if 1000J of sunlight hit a m^2 solar panel in one second, it converts about 25% of the incoming sunlight energy -- around 250J -- into electrical energy.
The other 75%? Some is reflected away from the PV cell, other converts to heat, panel operating loss, etc.
Why does the panel have a rate (i.e., 100W)? Because every part of the panel as a system -- as well as the systems or devices receiving the converted power -- has designed-in limits on how fast energy can flow.
Im located in the USA
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