Solar Energy Generation

Heat Pumps for Energy Efficiency

Can a solar power system really reduce electricity cost?

Absolutely! You see, with a solar power system, you’re using free energy from the sun. The energy from the sun is absorbed by the solar panels and either used by you immediately or fed back to the grid.That’s free electricity, and you get paid for selling back to the grid!

It is only when you use all the energy generated by the system, that you revert to using the energy billed to you by Aurora. This is money back into your pocket, and a reduction of your overall household expenses.

Want to know how much you can actually save? Request a free analysis and we will give you a tailored estimate of your costs and projected earnings.

How does a solar power system work?

The concept of generating energy from solar panels is actually very simple. Basically it is: The sunlight hits the solar panels. The panels generate DC electricity. The electricity is converted into AC 240 volt electricity by the inverter (included in a system). It then goes to your new electricity meter to run your home electricity. The surplus electricity that is not consumed is fed back into the grid and used by your neighbours.

Would you like to know more? See our more detailed explanation of how solar grid connect works.

What happens to solar energy that is not used at the property?

The surplus electricity that is not consumed is fed back into the grid and used by your neighbourhood. When the electricity you have generated is supplied to your neighbours, it helps to de-stress the network, which benefits us all.

For all excess solar energy that is feed back into the grid:

you get a credit on your electricity bill for everything you feed back into the grid (the amount you receive depends on the current ‘feed-in tariff’, set by the Tasmanian Energy Regulator), you save our precious resources by generating electricity locally for your neighbours (less energy is lost in the line sending it long distances) you contribute to increasing green energy being used in Tasmania. you reduce the amount of electricity from other sources, including: coal, imported via bass link, gas & diesel, from the backup George Town system, and hydro, preserving our precious water reserves.

The more of us that generate solar power, the more likely it is that Tasmania can net export green power to the mainland at premium rates, just as we wanted it to be! Plus, we support and encourage the expansion of local industry and job growth opportunities into the future. Every kilowatt counts!

Would you like to know more? See our more detailed explanation of how solar grid connect works.

Why is it important to consider quality when choosing a solar system?

At Jessups Solar Squad we strongly believe that only top quality systems are worth investing in. High quality equipment costs more to purchase, but you are rewarded with a system that will last for decades, give the highest yields and have almost no maintenance costs.

Beware of sub standard alternatives, there is a real difference. Unfortunately, we hear from Tasmanians that are very disappointed and out of pocket after choosing sub standard equipment. Many systems look similar so be sure to know the difference.

What is a heat pump?

A heat pump is also known as a ‘split system’ or a reverse cycle air-conditioner. The description ‘split system’ refers to a unit which is made up of two separate units that work together. A split system heat pump is a unit that has one part affixed inside the home and the other outdoors. The description ‘reverse cycle’ comes about as a heat pump can be used for both heating and cooling.

So, in short, a heat pump is an air-conditioner that also has a heating mode with both an indoor and outdoor unit..

How does a heat pump system work?

The heat pump system has become the most popular heating and cooling system used in Tasmania. It generates heat by extracting heat energy from the outside air. It works extremely well regardless of the weather and the time of the day/night.A heat pump is able to extract a lot of heat energy using very little power draw and generally averages between 5 & 8 times energy efficiency. That means 1kw hour of power can see an average of 5 to 8 k times value as compared to traditional electric heating systems, even during extremely cold weather.

As well as being much cheaper for general home heating, heat pump systems have the added benefit of cooling also. This is something a gas, electric or wood heater can’t do for us on a hot day.

How do I choose the right heat pump?

It is important to choose the correct model of heat pump, this will ensure that you get the maximum energy efficiency benefits. It is not easy to choose the right appliance to buy. That’s because there are many factors to consider, including the brand, model, capacity, warranty, size of your home, home design, and many more.But don’t worry, we can help! Simply request a free evaluation from us. We will visit your home or commercial property, analyse your needs and recommend the system that suits you perfectly.

How does the cost of running a heat pump compare to other types of space heating?

IGas seems cheap but heat pumps are cheaper for general home heating and have the benefit of cooling too. Aurora’s public comparative data demonstrates that heat pumps are dramatically cheaper to run than any other form of heating.

Source: Aurora Energy: Heating Cost Comparison

Tasmanian is leading the country in our forward thinking use of heat pumps. With our ‘crisp’ to ‘harsh’ winters, quality heat pump units allow us to have comfortable temperatures indoors along with fantastic energy & cost savings.

How do I choose the right heat pump?

It is important to choose the correct model of heat pump, this will ensure that you get the maximum energy efficiency benefits. It is not easy to choose the right appliance to buy. That’s because there are many factors to consider, including the brand, model, capacity, warranty, size of your home, home design, and many more.But don’t worry, we can help! Simply request a free evaluation from us. We will visit your home or commercial property, analyse your needs and recommend the system that suits you perfectly.

Why choose a Daikin heat pump? Why is it better than other brands?

Top quality Daikin inverter heat pumps are working well at Fingal, Liawenee and even on the ticket box at Falls Creek snow resort, which is well under zero degrees outside.

Daikin has recently released new models that demonstrate over 30% more efficiency than their earlier models. The older models were already leading the market for performance by 11% (Choice Magazine, p48, April 2010)

Perhaps that explains why Daikin (even though is it dearer than others) has consistently outsold all other brands. In fact, 2014/15 saw Daikin hold 53% of the market share. 2015/16 has seen and increase to over 60%. That means more than six out of ten heat pumps bought state-wide last year were a Daikin!

Why are heat pumps a split system?

The Domestic Geothermal system makes use of the constant temperature not far under-ground to control the temperature in a home. When the temperature in the home is too low, the system absorbs heat from the ground to heat the room. In contrast, when the room temperature is too hot, the system removes heat from the home to cool the room temperature.Basically it’s a reverse cycle heat pump with no outdoor fan and the copper car radiator looking part, called the condenser, is straightened out. For 5.25 – 21 kw systems, 2 to 6 (loops) lengths of copper tube are placed into bore holes (75mm to 100mm wide). Holes are drilled to 30 meters deep into the ground.

The system is quieter and smaller as it has no fan or evaporator, just the compressor, or ‘the pump’. It has two copper refrigerant lines trenched back to a compressor that is mounted under the house or in the garage.

Since the temperature not far under the ground is relatively constant, about 14 degrees, the thermal system works with superior efficiency regardless of the weather or the time of the day. It gives typical collection efficiency of 400%, that’s 33% higher than standard heat pump systems. The warmer ground is cheaper and quicker to steal heat from than the colder air in winter. Conversely, in summer the ground is cooler than the air temperature.

Are you thinking it is too expensive to buy and install? Contrary to popular belief, home systems can be installed at a similar price of some ducted systems. A typical 14kw home system price starts at $25,000, not millions of dollars like massive commercial projects.

Want more information about geothermal heat pump systems? We will be happy to tell you more.  Talk to us about it today!

How does a geothermal heat pump system work?

Do you remember the old wall/window mount air conditioners? They were like an oversized microwave oven in comparison right? They comprised of a heavy back end which held the motor (compressor), a car radiator looking part and fan just behind it. It sat on the outside and passed air through the wall or window. Then there was the inside end with a second fan behind another car radiator type mechanism, all nicely covered up with louvers and some controls as well!

They were mainly used for cooling as an air conditioner only, but were also available with a heating mode. However, the heating mode was not as reliable and generally froze up when the outside temperature was below 8ºc or 7ºc. They also had a nick name of ‘window rattlers’ as the compressor and motor was very loud and vibrated.

To fix this, they ‘split’ the window rattler into two pieces. One outside unit and one inside unit. This immediately saw large benefits.

Firstly, the main noise source had been taken out of the living space and made into an outdoor unit which was mounted on wall brackets or on the ground slab. Then there was the indoor unit which had one main moving part, a barrel fan. The only other moving part was the louvers which created almost zero noise when in motion. The indoor unit solely delivers the heating or cooling, plus other modes such as fan only and dehumidify only.

Secondly, they amped up the quality to allow them to work in sub 0ºC temperatures.