Assessment of the Use of PV Panels with Energy Accumulation Option for Riga City Office Building

Table 1

Types of solar panel.

Name
Type	Monocrystalline	Polycrystalline	Thin film (CIS)
Product name	Sharp NU-RD280	Trina Solar TSM-270 PD05	Solar Frontier SF170S
Nominal power (W)	280	270	170
No-load voltage (V)	39.2	38.4	112
Short-circuit current (A)	9.67	9.18	2.2
Voltage at maximum power (V)	31.2	30.9	87.5
Current at maximum power (A)	8.97	8.73	1.95
(%)	17	16.5	13.8
Panel area (m^2)	1.643	1.553	1.228
Occupied area of solar panels per 1 kWp	5.87	5.75	7.22
The cost of solar panels per 1 kWp	996.4	959.3	923.5
Temperature factor (%/°C)	-0.31	-0.41	-0.30
Power losses , % at	13.95	18.45	13.5
Price per piece (EUR)	279	259	157