i am your guide to solar finance for business

Energy savings and resource efficiency

Business

Financial modelling assumptions

These are the system details and financial assumptions we have used in the scenarios illustrating each financial product.

Commercial solar system details

 

System

System rated output

kW

30

System lifetime

Years

25

Inverter lifetime

Years

15

System output

Annual peak generation

kWh

8,541

Average peak export

%

0%

Annual shoulder generation

kWh

20,615

Average shoulder export

%

0%

Annual off-peak generation

kWh

13,549

Average off-peak export

%

0%

Output of solar system at peak event

%

50%

System costs

Total installed system cost (gross of STCs)

$

$71,125.00

Of which, inverter

$

$ 9,355.00

RECs value ($)

$

$ 28,840.00

Net capital cost

$

$ 46,285.00

Annual maintenance cost

$ p.a.

$ 600.00

Degradation rate of panel efficiency

% p.a.

0.5%

Commercial electricity tariffs

Energy tariffs

Peak

$/kWh

$0.28

Shoulder

$/kWh

$0.21

Offpeak

$/kWh

$0.12

Capacity charge

$/kVA/day

$0.34

Energy prices growth rate

$ p.a.

0%

Feed-in tariffs

Peak

$/kWh

$0.070

Shoulder

$/kWh

$0.070

Off-peak

$/kWh

$0.070

Important information: We have prepared the Solar Financing Guide with the information we could access in March 2015. We’ve tried to ensure that the guide is accurate and based on reliable sources, but we can’t guarantee its accuracy, reliability or completeness. We have provided only general information and it should not be taken as professional advice. You should seek independent legal, financial, taxation or other advice to check how this information relates to you. Read the full disclaimer for the full limits of this Guide.

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Page last updated: 10 December 2015