Performance Analysis of Photovoltaic Water Heating System

Table 3

Optimum load resistance for different sizes of PV array in different climates.

Number of modules/power [kWp]	2/0.5	4/1.0	6/1.5	8/2.0
Madrid	11	22	33	44
Istanbul	11	23	34	45
Athens	12	23	35	46
Genova	12	24	35	47
Bordeaux	13	27	40	53
Milano	14	27	41	54
Zurich	15	29	44	58
Prague	16	32	47	63
Stockholm	14	29	43	57