esm5

4 ms·

1. 1.▲
   by esm5 9y ago

   I'm not sure where you are getting the 250-300W/m2 of irradiance. The standard value used in all solar industry calulations is 1000W/m2, but in practice, you should expect to see 800W/m2 at sea level and moderate lattitu
2. 2.▲
   by esm5 9y ago

   The Kaufmann report was published in 2012. At that time, both companies looked like VC darlings.
3. 3.▲
   by esm5 10y ago

   You can try Aliexpress.com. They have buyer protection.
4. 4.▲
   by esm5 10y ago

   I was part of the founding team of a power electronics startup. We constantly tore down our competitors' products to estimate their costs, to see how they corrected design flaws between releases, and also to understand which component