May/090
Sharp announces 0.8mm 300mw Solar Panel for cellphones.
Producing a maximum 300mw in a 27cm square, 0.8mm thick, this lightweight panel just announced by Sharp looks interesting and gives an indication of where we are in small consumer-focused solar panels.
This newly developed solar module makes effective use of compact semiconductor packaging technology to achieve a thickness of just 0.8 mm, the thinnest level in the industry. The solar cells that make up the module are based on polycrystalline silicon and deliver a maximum power of 300 mW*1 , and as an auxiliary power source for mobile devices, will contribute to saving energy. In addition, the electrode pattern on the cell surface can be formed to meet the requirements of device manufacturers, leading to increased design flexibility for mobile devices.
We’re still at a very poor level of efficieny though. 11% efficiency by my reconing. It’s no wonder they didn’t put that statistic in the press release!
300mw is enough to keep a very basic mobile phone topped up while in standby.
May/090
The Cheap, All-In-One Solar PC. iUnika Solar Announced.
Does this mean goodbye to my solar panel, my 1KG lead-acid battery and the box full of cables I have? Does these mean that you won’t have to spend over $1000 on a Solar UMPC kit now?
iUnika have announced a range of very low end, low-cost netbooks which include one with a solar-panel on the back. The price: $260.
- 700gm
- 8″, 800×480
- 400Mhz MIPS CPU
It’s eco friendly too “..the system body’s is made from bioplastics and other biodegradable materials derived from starch and cellulose” [source]
Here’s my take. Using a PC in the sun is hard work on the eyes and hard work on the battery as you need to pump up the backlight. The solar panel is also very small (I estimate 4W max output) so with a device that’s likely to be in the 3-4W operating power range, it’s at best, a trickle charger that can keep the device topped up when not in use. Putting panels on PC’s does a nice job of cutting out the losses you get when charging external power banks but they need to be detachable to get the best use out of them.
Still, bravo to iUnika for doing this. There are definitely some customers that would benefit from this. Education in hot countries with poor infrastructure comes immediately to mind.
Source: Gearlog