System Sizes

C21e solar tiles and slates come in a range of pre-engineered system sizes.

No. of C21 e Solar Tiles or Slates	Electricity per year in units1	CO2 Offset per year 2	kWp 3
18	796	452kg	0.94
24	1061	603kg	1.25
36	1591	904kg	1.87
42	1856	1054kg	2.18
48	2122	1205kg	2.50
54	2387	1356kg	2.81
60	2652	1506kg	3.12
72	3182	1808kg	3.74

1. For a south facing roof, generating 850 units (kilowatt hours - kWh) per kWp
   Actual performance may vary, see www.solarcentury.co.uk/performance
2. Using SAP calculation method for grid displaced electricity - 0.568kg per kilowatt hour

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