Home  |  Products  |  Solar Power & Energy Efficient Products  |  Solar Power Systems  |  Commercial Solar Power Systems

solar-power-collage2

Protect yourself today from tomorrow's high power prices

How much solar power could I generate? 

So you're interested in reducing your power consumption and electricity bills with a solar electricity (photovoltaic) system? Chromagen offer a wide range of quality solar power systems from leading manufacturers to meet your specific needs. It's important that you select the right system for your needs, so you get obtain the best value for money and return on your investment.

The aim of selecting a solar power system is to:

  • Cover your day time electricity consumption with solar-generated electricity
  • Minimise the amount of power you feed in to the grid, especially if you are not getting a Feed-in Tariff

This guide will show you the value of the solar-generated electricity produced by various solar power systems, and the potential savings you could make on your bill.

ENTER DETAILS POTENTIAL SAVINGS

Select your closest city
Cost per kWh in dollars
i.e. $0.22 (From your bill)
System sizes available (kW)
 

 


Solar generation
per day: (kWh)
 
Solar generation
annual: (kWh)
 
Potential
Savings*:
 
* over 12 month period

 

 

Contact us today for a free, no obligation solar power proposal

*Solar Power Savings Calculations are based on:

  • 100% of solar-generated electricity being used within the property
  • The value of savings from Feed-in Tariffs are not factored into this calculation as Chromagen recommends minimising "Feed in" to the grid.
    For more information on Feed-in-Tariffs click here
  • Solar generation value based on CEC GC Design Guidelines, PV array 1kW facing true North & a tilt angle of 20°C. Using an average inverter / wiring efficiency of 0.92 and long term irradiation / temperature data from the Australian Solar Radiation Data Handbook.
  • Please note that the information provided in this guide is for illustration purposes only. Savings can differ based on where you live (relevant Feed In Tariffs) and the actual site conditions at your home.
  • The electricity cost is the average cost for your metering.

Potential Solar Generation based on Capital Cities

Closest City

STC Zone

Avg. Daily System Generation (kWh)

20kW System

50kW System

100kW System

200kW System

 

 

20

50

100

200

Adelaide

3

84

210

420

840

Alice Springs

2

100

250

500

1000

Brisbane

3

84

210

420

840

Cairns

1

84

210

420

840

Canberra

3

86

215

430

860

Darwin

1

88

220

440

880

Hobart

4

70

175

350

700

Melbourne

4

72

180

360

720

Perth

3

88

220

440

880

Sydney

3

78

195

390

780

Data Source: CEC GC Design Guidelines. PV Array 1kWp facing true north and a tilt angle of 20° with an average inverter / wiring efficiency – 0.92, using long term average solar irradiation and temperature data from the Australian Solar Radiation Data Handbook.

Savings Scenario

Savings Scenario

The amount your business can save is based on a number of variables such as those listed below. You will need to refer to your power bill to determine points 1 and 2

  • What you are currently paying for electricity
  • How much you are consuming during daylight hours
  • The number of panels we can fit based on your suitable roof space

The table below provides a commercial scenario to give you an indication of what you could save.

Description

Value

Avg. cost of purchased electricity per kWh ($) incl fees, charges & taxes

0.15

Estimated electricity consumed on average per day (kWh)

400

Assumed power consumption during day (kWh)

320

80%

Current cost of electricity per annum ($)

18,000

Ideal Solar System size (kW)

88

Solar System Daily Output (kWh) in Melbourne

316.8

Solar System Annual Output (kWh)

115,632

Proportion of total consumption saved

96.36%

Number of 250W solar panels

350

Value of savings ($)

17,275.30

Estimated new cost of electricity per annum ($)

4,653.75

Offset of greenhouse gas emissions per year (Tonnes)

161

Roof space required (allowance of  3m² per panel

1050

*Based on a 6 day week by 50 weeks

When choosing a solar power system, consider the following:

  1. Availability of suitable roof space: This will determine how many panels you can fit and how many strings of panels you may require.
  2. Orientation of this roof space: Due North will provide the highest efficiency
  3. Inclination of panels: The most ideal inclination is around 30 degrees. If you have a flat roof, you will need special frames to provide this inclination.
  4. Shading: Do you have trees or buildings that are casting shade on your roof? If so, this may reduce the efficiency of your panels. Consider removing or trimming back the tree.