Which n type solar panel is the best value?
For an n type solar panel, the best value here is the 200W N-Type Bifacial Solar Panel, ranked #1 of 4 at $1.000/W. Every panel here is N-type. Renogy sells it for $199.99, which is $1.00 per watt.
Price per watt puts panels of different sizes on one scale. Next come the ShadowFlux 120W N-Type Anti-Shading Solar Panel at $1.083/W and the 100W N-Type Bifacial Solar Panel at $1.100/W. The ShadowFlux 200W N-Type Anti-Shading Solar Panel sits last on value, at #4 of 4 and $1.200/W.
| Product | Best current price | Cost per watt | Value rank |
|---|---|---|---|
 Renogy 200W N-Type Bifacial Solar Panel | $199.99 at Renogy | $1.000/W | #1 of 4 |
 Renogy ShadowFlux 120W N-Type Anti-Shading Solar Panel | $129.99 at Renogy | $1.083/W | #2 of 4 |
| Renogy 100W N-Type Bifacial Solar Panel | $109.99 at Renogy | $1.100/W | #3 of 4 |
| Renogy ShadowFlux 200W N-Type Anti-Shading Solar Panel | $239.99 at Renogy | $1.200/W | #4 of 4 |
Why does the higher-rated Bifacial panel lead on price per watt?
The 200W N-Type Bifacial Solar Panel leads on price per watt because it costs $199.99 for a panel rated at 200 W. That works out to $1.00 per watt at Renogy. Price per watt tells you cost, not fit, so check size and weight as well.
Renogy lists a module efficiency of 19.9 % for this panel. It weighs 22.71 lb. On its spec sheet, Renogy rates it at 29.6 V open circuit and 25 V at max power.
Its current ratings are 8.7 A short circuit and 8 A at max power, according to Renogy. Write these numbers down before you shop for a controller, since every controller has its own input limits.
What does the lower-rated ShadowFlux cost per watt?
The ShadowFlux 120W N-Type Anti-Shading Solar Panel costs $1.08 per watt, good for #2 of 4 on value. Renogy sells it for $129.99, and it is rated at 120 W. Renogy lists its module efficiency at 20.7 %.
At 15.87 lb, it is a middle weight in this group, between 11.97 lb and 22.71 lb. Renogy puts its open circuit voltage at 33.7 V, with 28.9 V at max power. For current, the figures are 4.57 A short circuit and 4.21 A at max power.
Match panel watts to what you need to power.
Why pick the lower-rated Bifacial panel over the higher-rated one?
Pick the 100W N-Type Bifacial Solar Panel for lower weight and price, at 11.97 lb and $109.99 against 22.71 lb and $199.99 for the 200W N-Type Bifacial Solar Panel. That trade matters if you move your panel often or have little room to set it up. It is rated at 100 W, and Renogy lists its efficiency at 20 %.
It costs $1.10 per watt, which ranks #3 of 4. Weigh the lower price against the watts you give up. Electrically, Renogy rates it at 23.6 V and 4.24 A at max power, with 28.5 V open circuit and 4.45 A short circuit.
If you think you will add more panels later, note these ratings so you can match them.
What do you get for the higher price of the higher-rated ShadowFlux?
For its higher price of $239.99, the ShadowFlux 200W N-Type Anti-Shading Solar Panel lists higher efficiency, 20.7 % against 19.9 % for the 200W N-Type Bifacial Solar Panel at $199.99. Both panels are rated at 200 W, so the gap is not in watts. Renogy lists it as rigid, with a Voc temperature coefficient of -0.25 %/°C.
Its voltage is higher too, with 36.5 V open circuit and 31.3 V at max power, against 29.6 V and 25 V on the bifacial panel. Current sits at 6.86 A short circuit and 6.38 A at max power. At 23.83 lb, it is heavier than the 200W N-Type Bifacial Solar Panel at 22.71 lb.
The price works out to $1.20 per watt.
Which of these panels has the highest efficiency rating?
Both ShadowFlux panels share the top rating at 20.7 %, against 20 % for the 100W N-Type Bifacial Solar Panel and 19.9 % for the 200W N-Type Bifacial Solar Panel. Higher efficiency means more power from the same panel area.
That counts most when roof or deck space is tight. When space is not a limit, price per watt is the figure this ranking uses.
How should you choose among these N-type panels?
Start with how many watts you need, then compare price per watt among panels of that size. Ratings run from 100 W on the 100W N-Type Bifacial Solar Panel and 120 W on the ShadowFlux 120W N-Type Anti-Shading Solar Panel up to 200 W on each of the others. By weight, the 100W N-Type Bifacial Solar Panel is lightest at 11.97 lb, and the ShadowFlux 200W N-Type Anti-Shading Solar Panel is heaviest at 23.83 lb, with 15.87 lb and 22.71 lb for the others.
That leaves all of them in the easy to carry (under 30 lb) weight class. Check the voltage and current limits of your controller or power station before you buy any panel. Then pick the size that fits the space you have.
If the budget is the main limit, start from the top of the value ranking and work down.