You can see both. Water heaters usually have a tank right behind or above them and it has a silvery tint to it. Blue hued ones are mostly electric panels
Comment on An unusually wide adoption of rooftop solar in Aleppo, Syria.
IAmNorRealTakeYourMeds@lemmy.world 2 months ago
are they solar water heaters or electric panels?
livligkinkajou@slrpnk.net 2 months ago
humanspiral@lemmy.ca 2 months ago
They appear to all be PV (electric) panels. The best value for this time and area.