A Grid-tie system quite simply produces power from the sun and supplements this power from your utility provider. Excess power can be fed into the utility network and you can be can be credited for it. This is usually less than the cost of the purchased energy, making it more lucrative to consume all the power yourself. Similarly should you require more power than what is available from the sun, you simply draw from the grid. Grid-tied systems are remarkably stable and require virtually no maintenance.

The payback on grid-tied systems is around the 5 year mark.



A grid-tied system may incorporate batteries in order to store unused energy in chemical form – to be used when need (during the night, for example). This can dramatically increase the effectiveness of your system as a whole as you are not limited to using your solar energy for only a few hours during the daytime. There are a large variety of different types of batteries, suited for different applications, at Iceberg Solar we have the experience and knowledge necessary to help you to make an informed decision.



Off-Grid systems make sense where the cost of energy is very high or if the consumer will remain at the property for a long time. An Off-Grid system comprises 2 parts:

The generation portion – if this is Solar PV, you need to generate enough power to supply for the day’s demand with excess to charge the batteries for the night demand.

The Storage portion – You need to store enough energy to supply power for use during the night. The more loads you can run during daylight hours the smaller the night demand will be, drastically bringing the cost down.

The payback on Off-Grid systems is usually more than 8 years at a utility connected site. Off-Grid sites running diesel generators as a primary source can make this option very lucrative.


The cost of water heating is usually the starting point for making a noticeable saving on your energy bill. The technology compliments any solar or battery installation extremely well. The beautiful thing about thermal energy is that it can be absorbed at one point and moved to another location or stored for later use, much like a big thermal battery.

An example would be absorbing heat from your fireplace and storing it in a large tank and heating the floors of your house.

An integrated water heating system can comprise of many different heat sources, including

  • Heatpumps
  • Solar
  • Fire (fireplaces)
  • HVAC Heat Recovery

This stored heat may be used to heat water, warm rooms and flooring and heat pools – amongst other things. The payback period on water heating is usually under 3 years.




We’re Here To Help You get off the grid!

Through concise system design and implementation

Let’s Get Started!