Step 5: Return-on-Investment >>>


Step 5: Calculate the Return-on-Investment

As a final, and probably most important step calculate your return-on-investment.

Numerous countries worldwide, including UK, Canada and USA have a multitude of incentives programs or offering Feed-in Tariffs for electricity generated by solar. It makes an investment in a photovoltaic system attractive with a high yield return.

In the previous step you calculated your annual output in KWh from your PV System.

Multiply your annual KWh output from Step 4 with the corresponding Feed-In Tariff in the table below and get your annual income.

Sample Calculation (*):

You are living in UK
The size of your PV system is 10 KWp, your annual output from PVGIS = 9530 Kwh
Feed-In Tariff (UK, > 4 KWp): 36.1 Pence/KWh


Calculation: 9530 x 36.1 = 3,440 GBP annual income

Total Cost for your PV System (10 KWp) = 24,000 GBP


After 7 years you reach the break even and the PV system is already paid. For the next 18 years you earn money with your PV system - year by year.  

 

I. Australia - Feed in Tariff for PV

Australia currently has no nationalised program, only state run schemes

State

Max Size

Rate Paid

Program Duration

 ACT

30 KWp

45.7 c/KWh (Gross)

20 years
NT TBC 45.76 c/kWh (Net)
Capped at $5 per day, then reverts to 23.11c per
kWh.
 TBC
NSW 10 KWp 20 c/KWh (Gross) 7 years
SA 30kW (10kW per phase)  44 c/Kwh (Net) 20 years 
VIC 5 KWp 60 c/KWh (Net) 15 years
TAS TBC 20 c/KWh (Net) TBC
WA 10kw Perth & South East. 30kW elsewhere (10kW per phase) - households only  40 c/KWh (Net) 10 years 
QLD 30 kWp (10kWp per phase)  44 c/KWh (Net) 20 years 
     

 

II. Germany - Feed in Tariff for PV

National Scheme, Feed in Tariff allows selling electricity to the grid and own consumption with different redemption schemes

Starting from 01. January 2011, Program Duration 20 years, Rate Paid in Net

Type of Installation

Max Size

Rate Paid

a/

Rooftop

up to 30 KWp

28.74 €-Cent / KWh

b/ Rooftop > 30 KWp 27.33 €-Cent / KWh
c/ Rooftop > 100 KWp 25.86 €-Cent / KWh
d/ Rooftop > 1000 KWp 21.56 €-Cent / KWh
e/ Standalone
(not supported anymore)
n/a n/a
  Own Consumption up to 30% of total generated PV electricity as given in a - e, minus 16.38 €-Cent / KWh
  Own Consumption > 30% of total generated PV electricity as given in a - e, minus 12.00 €-Cent / KWh
       

III. UK - Feed in Tariff for PV


Max Size

Rate Paid 

 Program Duration
 a/ up to 4 KWp [New]  36.1 P/KWh  25 years 
b/ up to 4 KWp [Retrofit] 41.3 P/KWh 25 years
c/ > 4 KWp 36.1 P/KWh 25 years
d/ > 10 KWp 31.4 P/KWh 25 years
e/ > 100 KWp, up to 5 MW 29.3 P/KWh 25 years
f/ Standalone 29.3 P/Kwh 25 years
       

IV. Canada

Ontario Only, Program Duration 20 years
   Installation Max Size

Rate Paid

a/ Rooftop up to 10 KWp ("Micro FiT")
80.2 CAD Cent / KWh
b/ Ground-Mounted up to 10 KWp ("Micro FiT") 64.2 CAD Cent / KWh
c/ Rooftop > 10 KWp 71.3 CAD Cent / KWh
d/ Rooftop > 250 KWp 63.9 CAD Cent / KWh
e/ Rooftop > 500 KWp 53.9 CAD Cent / KWh
f/ Ground-Mounted
(Eligible for Aboriginal or community adder)
 > 10Kwp up to 10 MW 44.3 CAD Cent / KWh 
       

V. Italy

a/ Rooftop partly integrated 1 - 3 KWp 0,423 €/kWh (*)
b/ Rooftop partly integrated  3 - 20 KWp 0,377 €/kWh (*)
c/ Rooftop partly integrated  > 20 KWp 0,358 €/kWh (**)
d/ Standalone 1 - 3 KWp 0,362 €/kWh (*)
e/ Standalone 3 - 20 KWp 0,339 €/kWh (*)
f/ Standalone > 20 KWp  0,321 €/kWh (**)
 g/ Standalon  > 200 Kwp  0,314 €/KWh (**) 
       
     (*) Plus 0,0772 - 0,0985 €/kWh for Selling Electricity or "energy exchange" 
    (**) Plus 0,0772 - 0,0985 €/kWh for Selling Electricity
       
 

 

 

 

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