Spirit Energy Solar PV Calculator

How much could you save with a Solar PV system?

Free Solar Panel calculator. Enter your roof size and orientation for an instant installation cost and electricity saving estimate.

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Step 1 - Determine System Size

System Details Which of these best describes the surface the panels would be installed on? (click box to view options)

Do you already know the size of your proposed system (in kWp)?

Yes

No

Enter System Size

Note: please enter the system size in kWp not Wp. E.g. for a 5 kWp system, input 5, not 5000.

Type of Panel Used Please select the the following representative panel type that best matches the panel choice that was used to calculate the number you entered above:

Type of Roof

Detached

Semi-Detached

Please note: this question and the questions below refer to the roof surface that panels would be installed on.

Roof Dimensions

1:
2:

3:

Type of Panel (Module)

Below is a choice of two representative panel types, to represent a range of panel costs. If you're after more detail, please view our panel comparison page or request a free quote or advice.
If you are looking to optimize financial returns, we generally recommend using black monocrystalline mid-range panels, unless space is very limited.

Description	Relative Cost	Output (Watts)	Width (mm)	Height (mm)
SunPower Maxeon 6 445W AC (Not All Black, built in Enphase Microinverter)	High	425	1032	1872
AIKO 470 W Neostar 2	Low	470	1046	1757
REC Alpha Pure-RX 460 W (All Black)	Moderate	460	1205	1728
AIKO 510 W Neostar 2	Low	510	1134	1954
JA Solar 440 W Bifacial (All Black)	Low	440	1134	1762
Eurener Nexa 500 W (All Black)	Low	500	1134	1909

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