Table 1.

Climate zone, base case annual (kWh) and peak (kW) electrical energy use for cooling, and peak and annual cooling savings summary for two trees on the west and one on the east for the energy efficient home.

Climate zone	Major city	Heating degree days^¹	Cooling degree days^²	Base case cooling electrical use		Annual savings			Peak savings
Climate zone	Major city	Heating degree days^¹	Cooling degree days^²	kWh	kW	%	kWh	$	%	kW	Hour
2	Santa Rosa	3340	323	881	2.51	38	333	40	19	0.47	15
4	Sunnyvale	2366	325	539	2.29	52	282	34	21	0.49	15
7	San Diego	1355	472	418	2.07	49	206	23	10	0.21	14
8	El Toro	1586	638	1047	2.54	34	355	46	1	0.02	13
9	Burbank	1488	893	1410	2.91	29	403	52	17	0.49	15
10	Riverside	1570	1243	1929	3.13	23	438	57	7	0.23	15
11	Red Bluff	2518	1337	2135	3.34	26	548	66	21	0.69	16
12	Sacramento	2764	708	1490	3.18	34	513	62^³	23	0.74	16
13	Fresno	2300	1908	2968	3.40	21	628	75	22	0.75	16
14	China Lake	2706	1719	2677	3.24	22	576	75	23	0.75	16
15	El Centro	776	4018	5875	4.08	11	642	83	11	0.46	15

↵1 One heating degree day (HDD) accumulates for every degree that the mean outside temperature is below 65°F (18.3°C) for a 24 hr period.
↵2 One cooling degree day (CCD) accumulates for every degree that the mean outside temperature is above 65°F (18.3°C) for a 24 hr period.
↵3 $41 in Sacramento County