in 2011 residential solar system installers paid a little over $ 1 80 per watt for solar panels in both germany and the united states in germany installers added $ 1 20 to the cost of the solar panel to complete an installation but in the u s they tacked on $ 4 36 per watt more than three times as much
thin layers of a waterproof substance on the surface of hydrophilic materials. Hydrophobic coatings are often called water-repellent, which is incorrect, since the water molecules are attracted to the coatings, although extremely weakly, rather than repelled by them.ubstances used as hydrophobic agents include salts of fatty acids and such metals as copper, aluminum, and zirconium; cation-active surface-active agents; and low-and high-molecular-weight organosilicon and organic fluorine compounds.
2. Water-repellent, which is basically just a step up from water-resistant. If a device is labeled as water-repellent it actually possesses the properties in which to, you guessed it, repel water from it, making it hydrophobic.