City

Location

Latit./Longit.

Object

CDD_mod

Degree-days

Dx_opt

(cm)

Payback

years

Alexandria

31^o12'20"N

29^o55'28"E

Walls

2000

7.12

1.888

Ceiling

3378

9.85

1.44

Cairo

30^o01'59"N

31^o14'00"E

Walls

2035

7.2

1.871

Ceiling

3400

9.89

1.435

Assiut

27^o11'00"N

31^o10'00"E

Walls

3805

10.58

1.355

Ceiling

4743

12.05

1.210

Aswan

24^o05'20"N

32^o53'59"E

Walls

3606

10.25

1.393

Ceiling

4622

11.87

1.226