Techno-Econo-Enviro Assessment of Photovoltaic-Thermal (PV-T) System for Residential Use in Iran Based on Köppen Climate Classification

Table 5

Energy loss in the studied residential unit.

Location	Total annual energy loss through building and air exchange (kWh)	Annual heat loss from the storage tank (kWh)	Annual losses of storage tank connections (kWh)	The cost of producing thermal electrical energy ($/kWh)	Max. fuel savings (m^3/year) (gas)	Savings in annual fuel consumption with solar energy consumption (kWh)
Arak	35436.5	524.6	497.8	0.338	349.1	7595.8
Ardabil	36425.3	489.7	454.4	0.377	298.5	6796.9
Urmia	38745.8	512.1	484.2	0.322	355.8	7975.7
Isfahan	32499.7	566	550.3	0.323	363.3	7952.2
Ahvaz	22530.6	622	623.2	0.398	308.1	6473.7
Ilam	34739.3	543.8	521.4	0.335	352.6	7681.7
Bojnourd	30628	546.1	532.1	0.356	330.5	7224.3
Bandar Abbas	23886.1	647.8	654.7	0.329	371.4	7822.7
Bushehr	23249.9	643	645.5	0.374	324.1	6889.6
Birjand	31881.7	577.7	571.5	0.310	387.4	8304.5
Tabriz	37293.3	505.9	474.5	0.346	326.9	7420.8
Tehran	29282.9	555.5	542.8	0.355	328.2	7229
Khorramabad	32663.7	543.7	525.1	0.341	344	7543.9
Rasht	25331.8	486.2	461.2	⇧0.530	198.5	4825.5
Zahedan	29302.5	610.1	610	0.314	379.4	8179.6
Zanjan	39220	492.1	458.1	0.343	331.1	7481.5
Sari	25782.6	507.7	489.4	0.463	234.6	5534
Sanandaj	34975.6	531	508	0.339	349.8	7588.7
Shiraz	29748	610.9	609.6	⇩0.308	383.6	8343.3
Qazvin	32319.8	538.1	516.9	0.357	326.6	7192.8
Qom	28917.4	579.7	567.6	0.353	342.6	7291.8
Karaj	29409	552.5	538.9	0.362	320.9	7087.1
Kerman	30769.6	589.9	584.4	0.313	384.5	8207.8
Kermanshah	31926.7	547.8	529.3	0.348	339.9	7387
Gorgan	27414.7	512.1	493	0.427	263.3	6014.5
Mashhad	31636	512.8	487.4	0.382	304.9	6722.7
Hamadan	37169.1	500.8	470.6	0.346	336.3	7415.8
Yazd	28988.9	618.3	616.8	0.318	371.9	8080.2