Commercial Grid Connect Solar Power Systems

Save Money Now & Restore Profits Long Term!

Solar Power for commercial businesses is a smart, financially astute and fully reliable way of reducing costs by generating part or all of your energy needs from your own solar powered energy plant.

Renewable Energy International’s managing director has over 35 years devotion to the Australian renewable energy industry and now offers energy solutions that have been extremely popular in the international market for many years.

One of our projects where we installed a 30kW grid connection system for Sanwell Corporation in Welshpool, won the architect Benjamin Braham of Braham Architects 2 major awards in the 2015 Architecture Awards.

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Our System’s Benefits

  • We Build Your Own Power Plant
  • Saves thousands of dollars in energy costs every year and for decades to come
  • Depreciable Asset that Quickly Repays for Itself
  • Adds Supply Reliability by Supporting the Local Grid Network
  • ‘A’ Grade Products Backed by Long Term Warranties
  • Highest Product Efficiencies
  • Quality Electrical Installations by our Local Experienced Installers

Reliable System Components

We use the very best and reliable components available.

  • SMA inverters have been the world leader in large commercial solar power applications for many years. Their high power, ultra efficient and fully optioned products and after sales support have no peer. We highly recommend SMA products. Refer to videos provided.
  • Solar modules are critical to the supply of reliable power and we have a high grade solar module with long warranties backed by Chubb Insurance companies, thereby giving 100% guarantee of warranty provisions. The modules are very efficient and designed to perform well beyond their 25 year performance warranty period.
  • Balance of system components such as mounting frames, AC and DC isolation devices, electrical cables, hardware and all aspects of installation are to the highest International, Australian & Clean Energy Council safety standards.

Don’t Sit Back & Do Nothing!

Right: A local business owner’s reaction to last month’s power bill.

‘Eye Off’ A Great Deal From Us Today!

Read our client testimonials and find out why we have so many referred clients.

Commercial Grid Connect: Background

Electricity costs have become one of the biggest cost burdens to business in Australia.

The costs of generating and transporting electricity through the network have risen sharply over the last 15 to 20 years.

There is a strong global demand for generation fuels including natural gas, and increased demands on our electricity networks.

Although WA’s electricity prices have increased, the prices are still lower than the cost of supplying electricity.

At the moment, the WA Government covers this difference — paying a subsidy of more than $500 million in the 2014-2015 financial year to Synergy and $136 million for the Uniform Equalisation Policy for remote areas, where the costs to supply electricity are considerably higher, to Western Power in the 2014-2015 financial year. (Source: ‘Fair Pricing for Western Australia’s electricity, Grattan Institute 2015, page 21)

The extra costs of supplying electricity to these areas are funded by:

  • Electricity network charges in the South West Interconnected System (SWIS)
  • The WA Government subsidy

All this means is that power prices in Western Australia are still below the cost of production, and further cost increases are inevitable, and more than likely the more a customer consumes electrical energy, the higher the unit cost will be per unit. This is bad news for commercial clients, already paying higher costs per unit versus A1 tariff domestic customers.


Recent Electricity Price Increases

Listed below is the recent price rise history in electricity prices in WA. No wonder commercial organisations are buckling under huge increases!

2015 Increases

  • 4.5% domestic tariff increase as from 1 July 2015
  • 4.5% business tariff increase as from 1 July 2015

2014 Increases

  • 4.5% domestic tariff increase as from 1 July 2014
  • 10% business tariff increase as from 1 July 2014

2013 Increases

  • 4% domestic tariff increase as from 1 July 2013
  • 10% business tariff increase as from 1 July 2013

2012 Increases

  • 3.5% plus carbon component for households and small businesses from 1 July
  • Up to 12% plus carbon component for other business tariffs from 1 July

2011 Increases

  • 5% for households and small businesses from 1 July
  • 13–29% for large businesses from 1 July

2010 Increases

  • 7.5% in 1 April and 10% in 1 July for households
  • 7.5% in April and 10% in July for small businesses
  • 7.5% in April and up to 10% in July for large businesses

2009 Increases

  • 10% in 1 April and 15% in 1 July for households
  • 5% in April and 10% in July for small businesses
  • 0% in April and in July for large businesses

Before 2009

Before 2009, prices for residential customers had not increased since 1997/98 (excluding GST). Prices for small business customers had not increased since 1991/92 (excluding GST).


Solar Energy Installations Growth

Western Australian Treasurer and Energy Minister Dr Mike Nahan has told an energy conference that the state-owned power company Synergy needs to shut down several of its fossil fuel power stations, due to a drop away in power demand and the growth of solar PV.

“Given the excess capacity on a good day — 42 per cent — and also the growth of solar… and declining demand, we have excess capacity”, Dr Nahan told the conference, ABC reports.

Western Australia power regulators and businesses, just like those in the eastern states, have been taken by surprise by a drop away in power demand growth in the last few years. As detailed by energy analyst Hugh Saddler of Pitt and Sherry, improvements in household and commercial energy efficiency predominantly, and downturns in heavy industry to a lesser extent, led to a remarkable curtailment in electricity demand since 2008.  Then from around 2012 growth of solar PV has also become a significant factor.

According to the Australian PV Institute, just over one fifth of household dwellings across the whole of WA have a solar system installed, with 500 megawatts in place. Nahan expects solar capacity to continue to grow considerably due to its low costs, stating, “We expect that the bulk of generating capacity during sunlight hours in the metro area in about 10 years’ time will be provided by rooftop solar”.


Payback of Investment

In commercial installations, the financial payback and ongoing savings to the bottom line of the business is paramount.

To this end, the business operator should consider several things when determining the purchase of a solar power system.

These are (but not limited to) the following:

  1. Available roof area, roof angle and roof aspect.
  2. Ownership of the premises. If leased, one must get the lessor’s permission to install on their building and details on ownership should the lessee ever vacate the premises should be fully agreed and understood. This may mean getting an agreement drawn up.
  3. Since there is no feed-in tariff for the excess power fed into the Western Power grid, one must therefore ensure that the solar power system is sized to suit the daytime power consumption of the business, so that none or very little power is in excess.
  4. Since the solar power system can make a dramatic reduction in the overall power consumed, it may be possible to go back to your energy supplier and change the type of tariff and daily supply charge you are currently on to one less expensive. (A small 10kW installation at a retirement home installed by Renewable Energy International, allowed them to negotiate a saving of 7 cents/unit).
  5. Finally, but importantly, take the opportunity to change inefficient appliances and use of power within the premises. An audit of all appliances should be undertaken and old, inefficient appliances should be changed so as to reduce the energy load.

Renewable Energy International has several system sizes for businesses, in single or thee phase supply. Our systems are typically in 5kW increments, though we can design and cost custom sizes to suit roof types and budgets if required.


Typical System Sizes

  Income pa @ Tariff Rate
AC Wattage AC Units pa L1 L3 R1 R3
5,000 7,955 $2,340.00 $2,701.00 $2,563.00 $3,388.00
10,000 15,910 $4,682.00 $5,402.00 $5,126.00 $6,776.00
15,000 23,865 $7,020.00 $8,103.00 $7,689.00 $10,164.00
20,000 31,820 $9,364.00 $10,804.00 $10,252.00 $13,552.00
25,000 39,775 $11,700.00 $13,505.00 $13,875.00 $16,940.00
30,000 47,730 $14,040.00 $16,206.00 $15,378.00 $20,328.00

Synergy electricity tariffs used above can be found here.

(Note: Above data is based on Clean Energy Council design principles, Perth weather data, 20 degree north facing and shade free roof. Inverter efficiency of 96%. Solar module’s performance de-rated due to cell temperature. All electricity is consumed within the business. Results will vary for each circumstance.)

View our Frequently Asked Questions (FAQ) section to better understand the operation and benefits of installing an REI Solar Power System today.

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