Sharp ND-216U1F 216-Watt Solar.
This is a poly-crystalline 216 watt solar panel from sharp. Energy cost is about $4.14 per watt. Sharp is a good trustworthy brand of electronics, now it tries itself on a new field of solar panels. Poly-crystalline technology is more advanced comparing to mono-crystalline and allows you to use 100% of your panel surface for electricity generation. Price is quite steep, but that’s what you pay for pre-assembled, ready to use solar panel.
Grape Solar CS-P-270-DJ 270 Watt Polycrystalline Solar Panel.
This solar panel has more power output comparing to previous model and a lower price. Utilizing same up-to-date polycrystalline technology, this panel is a much better bang for your buck, since price per watt is way lower, about $2.44 per watt. For those people, who do not care about fancy brand name, this well over 200 watt solar panel from Grape Solar is a really good choice.
Yingli 175 watt Solar Panel.
This one is well under 200 watt, but within the same price range. It is really hard to justify such a high price for this panel from Chinese manufacturer (it’s not like the other panels are made outside of China). Probably an older model (solar panels like any electronics does become cheaper year ofter year). For this one you will pay $3.81 per watt of power, which is quite close to the sharp model above, but not nearly as cheap as the Grape Solar module.
Sumec-phono Solar PS190M-24/F
High Performance Mono Series Solar Panel. Finally a mono-crystalline solar panel on our list. It is almost a 200 watt solar panel (190W). Older technology results in a bigger surface (notice space gaps between individual solar cells). But “older” does not necessarily mean “worse”. It’s a proven technology, but as you can see, it costs more than it’s polycristaline friends. This particular model will cost you $4.58 per watt. Although manufacturer promises bonus features like tempered glass and duralumin frame.
