4 ms·

It looks like big parts of Pennsylvania only average about 3.5 hours of sunlight per day over the year. Maybe not the best investment?

• Jtsummers 1y ago
  Source for that claim?
  • pfdietz 1y ago
    The maps I see show somewhere just below 4 kWh/m^2/day for much of Pennsylvania. https://www.altestore.com/pages/solar-maps-for-the-usa https://www.altestore.com/pages/solar-maps-for-the-usa The desert southwest is only at most around 6 kWh/m^2/day, mind you. This is horizontal irradiation; a PV module tilted properly would receive more effective hours per day. Also, half the solar intensity for twice as long would enable inverters to be downsized, even if the average kWh/m^2/day were unchanged.
  • vondur 1y ago
    https://www.usatoday.com/picture-gallery/travel/destinations/2019/08/06/us-cities-that-get-the-least-sun/39896597/#:~:text=Pittsburgh%2C%20Pennsylvania%20%E2%80%A2%20Average%20hours,19. https://www.usatoday.com/picture-gallery/travel/destinations... This is what I looked at.
    • Jtsummers 1y ago
      You've misrepresented what that page says. It talks about "Average hours of full-sun per day" which is very different than your claim: > It looks like big parts of Pennsylvania only average about 3.5 hours of sunlight per day over the year. 3.5 hours of sunlight per day != 3.5 average hours of full-sun per day. Additionally, if you re-read your page, the number is higher than your claim of 3.5, it's 3 hours and 50+ minutes for all PA locations listed. So you misrepresented what the page describes and you misstated the numbers. What's the point of your original comment?
• deleted 1y ago
  [deleted]