Assertion: solar panel | /r/HasProperty | installed at angle
Facets:
value: between 30 and 45 degrees
type: OTHER
value: to the earth surface
type: LOCATION
value: usually
type: TEMPORAL
Source sentences:
text: Do remember that solar panels are usually installed at an angle to the earth surface and this may change the results somewhat.
text: To perform at their best, solar panels should face south and be installed at an angle between 30 and 45 degrees (depending on how far you are from the equator).