© Helderberg Solar Energy (Pty) Ltd - 2019 | Disclaimer | Privacy Policy | Terms of Use |

Helderberg Solar Energy

The solar energy market in South Africa is changing rapidly and the economic value of energy consumption and the use of renewable energy is becoming more and more feasible. Helderberg Solar Energy is a renewable energy company that specialises in lowering the cost of energy for Commercial and Residential applications by using the latest innovations in green technology. We supply and install PV (Photovoltaic) Systems, Wind Turbines, Low Energy (LED) Lighting, Solar Geysers, Heat Pumps, Pool Heat Pumps, Solar Borehole Pumps, Solar Gate Control and Solar Security Systems (CCTV & Perimeter Sensors). Helderberg Solar Energy value our customers and is proud to stand out as a pioneer in the renewable energy industry as far as technical knowledge, after sales service and maintenance is concerned.

What is a heat pump?

A heat pump is a very efficient water heating device. It uses a small amount of electricity to produce up to four times more heat energy. By connecting a heat pump to your existing hot water cylinder you can divide your hot water electrical consumption by four. Unlike a solar geyser, a heat pump is not directly dependant on the sun and therefore it can operate day and night, winter and summer, ensuring a major saving in producing hot water 24/7.

How long have heat pumps been around?

Heat pumps have been around for decades and are very widely used in Europe for central heating systems. Some of the hostels at Stellenbosch University in the Western Cape for example have used heat pumps for hot water for more than 25 years. Their popularity has increased drastically due to the increase in the price of electricity in recent years and this increase in demand has decreased the price considerably.

How does a heat pump work?

A heat pump works like an air conditioning unit in reverse. It extracts heat from the ambient air surrounding it, enabling it to heat the refrigerant which is then compressed causing it to get even hotter. This is then run through a heat exchanger where the energy is drawn off to heat the water and then the refrigerant is allowed to expand again, thus cooling it down and enabling it again to absorb heat from the surrounding air. Electricity is only used to run a fan and compressor and the heat energy is provided indirectly by the sun.
“Clubbing energy efficiency with renewable energy will give us the much-needed window to incubate the renewable energy sector, particularly large solar, without having to increase the price of electricity.” Jamshyd Godrej
Renewable Energy Solutions to save Earth for our Children
“The cost of renewable energy is largely a function of initial investment cost.... Once a renewable energy facility is built, at least with fixed-rate financing, the cost of power from that facility is fixed throughout its lifetime. Not so for fossil fuels, where the cost of power will vary in the future with fuel prices.” Jose Amaya

Heat Pump & Solar System Savings

The popularity of renewable energy technology for water heating has sharply increased with the increasing awareness of sustainable living and the ever increasing cost of electricity. However, as with many products on the market, one can find considerably contradicting claims with regards to the different technologies used for water heating. Many of these claims and advertisements are nothing more than marketing “scams” and have no facts behind them. We would like to equip our readers with as much factual information as possible to be able to make an informed decision, specifically taking in consideration the possible savings and ROI of solar water heaters, hot water heat pumps, PV systems or other renewable energy options available.

What is a solar water heater?

A solar water heater (SWH) uses energy from the sun to heat water. It works on two basic principles. Firstly, when water gets hot it rises due to density differences between hot and cold water (thermosiphon effect). Secondly, black objects absorb heat. A solar water heater collects heat from sunlight and irradiation through the solar collector and transfer that heat to water, which is then stored in a geyser or tank. Solar geyser systems comprise of two or three main parts: the collector, an energy transfer fluid (frost areas) and the storage tank. For low-income households who do not have an electrical geyser, the technology offers important health and quality of life benefits.

Collector

The solar collector absorbs solar radiation and transfers the energy, in the form of heat, to the fluid within it. The solar collector is generally a flat plat or an evacuated tube collector. More basic systems may be a coil of black pipe within a box or similar.

Transfer Fluid

This is the heat transfer medium. In a direct system (frost free areas), the transfer medium is the potable water from the storage container. In an indirect system, the transfer fluid is generally a mix of water and glycol, which passes heat energy to the storage container via an isolating heat exchanger. In areas in South Africa where temperatures drop below freezing, an indirect system is the best system to use.

Storage Tank

As with a conventional geyser, the hot water storage container is thermally insulated to retain heat. Solar geysers are better insulated than electric geysers. This allows for the maximisation of solar gains. Solar water heaters are classified as either active or passive systems. An active system uses a pump to circulate the fluid/water between the collector and the storage tank. A passive system uses natural convection (thermosiphon) to circulate the fluid/water between the collector and the storage tank. For low-income households who do not have an electrical geyser, the technology offers important health and quality of life benefits.
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© Helderberg Solar Energy (Pty) Ltd - 2019 | Disclaimer | Privacy Policy | Terms of Use |

Helderberg Solar Energy

The solar energy market in South Africa is changing rapidly and the economic value of energy consumption and the use of renewable energy is becoming more and more feasible. Helderberg Solar Energy is a renewable energy company that specialises in lowering the cost of energy for Commercial and Residential applications by using the latest innovations in green technology. We supply and install PV (Photovoltaic) Systems, Wind Turbines, Low Energy (LED) Lighting, Solar Geysers, Heat Pumps, Pool Heat Pumps, Solar Borehole Pumps, Solar Gate Control and Solar Security Systems (CCTV & Perimeter Sensors). Helderberg Solar Energy value our customers and is proud to stand out as a pioneer in the renewable energy industry as far as technical knowledge, after sales service and maintenance is concerned.

What is a heat pump?

A heat pump is a very efficient water heating device. It uses a small amount of electricity to produce up to four times more heat energy. By connecting a heat pump to your existing hot water cylinder you can divide your hot water electrical consumption by four. Unlike a solar geyser, a heat pump is not directly dependant on the sun and therefore it can operate day and night, winter and summer, ensuring a major saving in producing hot water 24/7.

How long have heat pumps been around?

Heat pumps have been around for decades and are very widely used in Europe for central heating systems. Some of the hostels at Stellenbosch University in the Western Cape for example have used heat pumps for hot water for more than 25 years. Their popularity has increased drastically due to the increase in the price of electricity in recent years and this increase in demand has decreased the price considerably.

How does a heat pump work?

A heat pump works like an air conditioning unit in reverse. It extracts heat from the ambient air surrounding it, enabling it to heat the refrigerant which is then compressed causing it to get even hotter. This is then run through a heat exchanger where the energy is drawn off to heat the water and then the refrigerant is allowed to expand again, thus cooling it down and enabling it again to absorb heat from the surrounding air. Electricity is only used to run a fan and compressor and the heat energy is provided indirectly by the sun.
“Clubbing energy efficiency with renewable energy will give us the much- needed window to incubate the renewable energy sector, particularly large solar, without having to increase the price of electricity.” Jamshyd Godrej
Renewable energy solutions to save Earth for our Children

What is a solar water heater?

A solar water heater (SWH) uses energy from the sun to heat water. It works on two basic principles. Firstly, when water gets hot it rises due to density differences between hot and cold water (thermosiphon effect). Secondly, black objects absorb heat. A solar water heater collects heat from sunlight and irradiation through the solar collector and transfer that heat to water, which is then stored in a geyser or tank. Systems comprise of three main parts: the collector, an energy transfer fluid (frost areas) and the storage tank.

Collector

The solar collector absorbs solar radiation and transfers the energy, in the form of heat, to the fluid within it. The solar collector is generally a flat plat collector or an evacuated tube collector. More basic systems may be a coil of black pipe within a box or similar

Transfer Fluid

This is the heat transfer medium. In a direct system (frost free areas), the transfer medium is the potable water from the storage container. In an indirect system, the transfer fluid is generally a mix of water and glycol, which passes the energy to the storage container via an isolating heat exchanger. In areas in South Africa where temperatures drop below freezing, an indirect system is the best system to use.

Storage Tank

As with a conventional geyser, the hot water storage container is thermally insulated to retain heat. Solar geysers are better insulated than electric geysers. This allows for the maximisation of the solar gains. Solar water heaters are classified as either active or passive systems. An active system uses a pump to circulate the fluid/water between the collector and the storage tank. A passive system uses natural convection (thermosiphon) to circulate the fluid/water between the collector and the storage tank. For low-income households who do not have an electrical geyser, the technology offers important health and quality of life benefits.
Click Here For

Heat Pump & Solar System Savings

The popularity of renewable energy technology for water heating has sharply increased with the increasing awareness of sustainable living and the ever increasing cost of electricity. However, as with many products on the market, one can find considerably contradicting claims with regards to the different technologies used for water heating. Many of these claims and advertisements are nothing more than marketing “scams” and have no facts behind them. We would like to equip our readers with as much factual information as possible to be able to make an informed decision, specifically taking in consideration the possible savings and ROI of solar water heaters, hot water heat pumps, PV systems or other renewable energy options available.
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© Helderberg Solar Energy (Pty) Ltd - 2019 | Disclaimer | Privacy Policy | Terms of Use |

How does a heat pump work?

A heat pump works like an air conditioning unit in reverse. It extracts heat from the ambient air surrounding it, enabling it to heat the refrigerant which is then compressed causing it to get even hotter. This is then run through a heat exchanger where the energy is drawn off to heat the water and then the refrigerant is allowed to expand again, thus cooling it down and enabling it again to absorb heat from the surrounding air. Electricity is only used to run a fan and compressor and the heat energy is provided indirectly by the sun.
“Clubbing energy efficiency with renewable energy will give us the much-needed window to incubate the renewable energy sector, particularly large solar, without having to increase the price of electricity.” Jamshyd Godrej
Renewable energy solutions to save Earth for our Children

What is a heat pump?

A heat pump is a very efficient water heating device. It uses a small amount of electricity to produce up to four times more heat energy. By connecting a heat pump to your existing hot water cylinder you can divide your hot water electrical consumption by four. Unlike a solar geyser, a heat pump is not directly dependant on the sun and therefore it can operate day and night, winter and summer, ensuring a major saving in producing hot water 24/7.

Storage Tank

As with a conventional geyser, the hot water storage container is thermally insulated to retain heat. Solar geysers are better insulated than electric geysers. This allows for the maximisation of the solar gains. Solar water heaters are classified as either active or passive systems. An active system uses a pump to circulate the fluid/water between the collector and the storage tank. A passive system uses natural convection (thermosiphon) to circulate the fluid/water between the collector and the storage tank. For low-income households who do not have an electrical geyser, the technology offers important health and quality of life benefits.
Click Here For

Helderberg Solar Energy

The solar energy market in South Africa is changing rapidly and the economic value of energy consumption and the use of renewable energy is becoming more and more feasible. Helderberg Solar Energy is a renewable energy company that specialises in lowering the cost of energy for Commercial and Residential applications by using the latest innovations in gr een technology. We supply and install PV (Photovoltaic) Systems, Wind Turbines, Low Energy (LED) Lighting, Solar Geysers, Heat Pumps, Pool Heat Pumps, Solar Borehole Pumps, Solar Gate Control and Solar Securi ty Systems (CCTV & Perimeter Sensors). Helderberg Solar Energy value our customers and is proud to stand out as a pioneer in the renewable energy industry as far as technical knowledge, after sales service and maintenance is concerned.
Heat Pump & Solar System Savings The popularity of renewable energy technology for water heating has sharply increased with the increasing awareness of sustainable living and the ever increasing cost of electricity.  However, as with many products on the market, one can find considerably contradicting claims with regards to the different technologies used for water heating. Many of these claims and advertisements are nothing more than marketing “scams” and have no facts behind them.  We would like to equip our readers with as much factual information as possible to be able to make an informed decision, specifically taking in consideration the possible savings and ROI of solar water heaters, hot water heat pumps, PV systems or other renewable energy options available.

What is a solar water heater?

A solar water heater (SWH) uses energy from the sun to heat water. It works on two basic princi ples. Firstly, when water gets hot it rises due to density differences between hot and cold water (thermosiphon effect). Secondly, black objects absorb heat. A solar water heater collects heat from sunlight and irradiation through the solar collector and transfer that heat to water, which is then stored in a geyser or tank. Systems comprise of three main parts: the collector, an energy transfer fluid (frost areas) and the storage tank.

Collector

The solar collector absorbs solar radiation and transfers the energy, in the form of heat, to the fluid within it. The solar collector is generally a flat plat collector or an evacuated tube collector. More basic systems may be a coil of black pipe within a box or similar.

Transfer Fluid

This is the heat transfer medium. In a direct system (frost free areas), the transfer medium is the potable water from the storage container. In an indirect system, the transfer fluid is generally a mix of water and glycol, which passes the energy to the storage container via an isolating heat exchanger. In areas in South Africa where temperatures drop below freezing, an indirect system is the best system to u se.

How

long

have

heat

pumps

been

around?

Heat pumps have been around for decades and are very widely used in Europe for central heating systems. Some of the hostels at Stellenbosch University in the Western Cape for example have used heat pumps for hot water for more than 25 years. Their popularity has increased drastically due to the increase in the price of electricity in recent years and this increase in demand has decreased the price considerably.