Following on from a recent feature in pv tech power volume 14 here are the five key.
Photovoltaic roof east facing.
Having panels facing south and west will help you generate energy throughout the day.
Net energy metering and time of use.
Since they typically lay flat solar panels most often face the same direction as your roof and your only choice is really.
Where on my roof if your roof faces east west rather than north south you have a few options.
Electricity is produced in a thin photovoltaic layer that covers the metal sheet.
Afternoon peak prices are higher than shoulder or off peak prices at other times.
Others say it s fine as long as you install the additional technologies.
Roofit solar modules are building integrated photovoltaic bipv construction elements that replace the conventional roofing and facade materials.
Obviously the payoff for east west is slower than south facing but if it means that you can produce 60 more then having an east west roof could be an asset and not a liability.
The direction that your solar panels face is ultimately dependent on whether or not your system is connected through net energy metering nem and under a time of use tou payment structure.
If you went with a professional solar installer they probably had a good reason to install panels facing east rather than west.
For example in my case east west facing payoff is still faster than a solar garden membership.
Technically east facing panels can get as much sun as west facing ones as long as there are no other issues like morning fog or clouds or shade.
If your panels are west facing you will be producing more power right during the expensive peak times than you would if the panels were east facing.
Between south west and south east.
Around the world solar developers are turning array designs on their head and choosing to go east west instead.
Solar panels facing east or west won t get as much light as those on a southern facing roof.
Time of use tariff schedule as displayed on the reposit first monitoring app.
These largely misleading reports were generally ignored by the industry.
Since the majority of solar panel owners keep their system on the grid we can split this grouping into simply those who pay for energy based on a tou payment.
That s why some big proponents including the california energy commission encourage builders to include some west facing solar panels in their developments.
It depends on your needs and priorities.
In the end south is best but west and east are also good.
According to multiple news sources pv arrays should face west or both east and west rather than to the south as is the standard.