Table 4.
Annual energy savings from 2 trees shading the west wall compared to unshaded prototypes
Tree Type
Construction Type
Mason 80
Wood 80
Mason 50
$
%
2
$
%
$
%
Mesquite (paraboloid, 75
1
)%
55
9
47
9
103
7
Olive (paraboloid, 85%)
61
11
53
11
115
9
Polydan eucalyptus ellipsoid, 84%)
40
7
33
7
75
6
↵
1
(shape, interception)
↵
2
percentages are of total annual costs