Installing renewable heating systems can significantly decrease carbon emissions while protecting against rising fuel costs.
Government grants such as the Green Homes Grant offer incentives for switching to eco-friendly heating methods, but in order to qualify, homeowners must undergo certification through the Microgeneration Scheme.
Space considerations also play a part in selecting a heating solution; Nu-Heat has vast experience integrating heat pumps with underfloor heating systems to assist customers.
Solar water heating
Solar water heating systems combine solar collectors, insulated piping, and hot water storage tanks into an open or closed loop system, using either a heat exchanger to transfer energy directly from the Sun into potable water or an additional heat pump to help prevent overheating and freezing. Some models even offer backup electric heating capability during times of low sunshine or high demand.
Clarence Kemp of Baltimore installed the first solar water heater ever seen back in 1896 when he enclosed a black-painted tank on his roof and used solar energy for water heating purposes. Modern solar water heaters have evolved significantly since 1896, becoming more efficient and combined with other renewable technologies for reduced upfront costs and added value for reselling later. Solar energy could add an extra incentive if you are selling your home!
Solar power can be an ideal way to reduce your carbon footprint and save money, providing clean energy without additional emissions or costs. Unfortunately, however, solar panels only generate electricity, so an additional system may be needed to meet your hot water requirements.
Installing solar power or heat pumps together with solar water heating systems can significantly lower installation costs and disruption, as well as allow you to take advantage of government incentives like the Australian Greenhouse Energy Scheme (Augst). Furthermore, cashback may even be available from your utility company when exporting any excess electricity back onto the grid; be sure also to check if you qualify for federal solar tax credit, as this may vary depending on when you install your renewable heating system.
Solar PV
Solar PV panels are a popular choice for households to generate their own power, cutting energy costs and reducing reliance on the grid. These systems lower greenhouse gas emissions, aiding climate change efforts.
PV systems include solar panels on roofs or fields, converting DC electricity to AC for home use. A power inverter and possibly a battery bank for storage are part of the setup.
After installation, a bidirectional meter tracks energy exchange with the grid. You should also set up any relevant apps to monitor your system’s energy production, following your installer’s guidance.
Installation of PV systems should occur from autumn to winter when solar radiation is at its most intense. The exact timing depends on your location; ground-mounted panels should wait until their soil has thawed before beginning work.
Consider whether planning permission will be needed for your installation. A reliable installer should be able to assist in managing this process on your behalf; however, for smaller systems and ground-mounted systems, this task should be handled directly by the customers themselves.
Biomass
Biomass energy, generated by burning organic materials like trees, crops, and waste, provides heat and electricity. It’s renewable, with sources like corn, sugarcane, and soybeans regrowing under the right conditions.
In the US, biomass supports the paper and wood industries with heat and electricity. Cogeneration plants use biomass with fossil fuels, while biofuels like ethanol come from corn and sugarcane.
Biomass is burned in boilers and furnaces or turned into energy-dense pellets for power generation. Biomethane, converted from biomass, serves as a clean natural gas alternative for heating and vehicles.
However, biomass energy has drawbacks. It can lead to deforestation if not managed sustainably. Using forest biomass releases stored carbon, contributing to climate change. The growth and transport of biomass emit greenhouse gases, from fertilizer use to transportation. Additionally, harvesting disrupts soil health and increases erosion.
Air source heat pumps
Switching from fossil fuels to renewable energy technologies for heating can reduce carbon emissions and protect against fuel price increases. Renewable heating systems, like air source heat pumps, use the Sun or ambient air to generate heat without emitting harmful greenhouse gases, making them clean heating solutions.
An air source heat pump has an outdoor fan and heat exchanger. It pulls in air, heats it, and then sends the warmth inside for heating or cooling. This system replaces separate cooling units, saving time and money.
However, heat pumps need electricity to operate and are only carbon neutral if powered by renewable energy. You can enhance savings by improving home insulation and using thermally efficient radiators or underfloor heating systems that work well at lower temperatures.
For selecting an air-source heat pump, prioritize models with high SEER and HSPF ratings for better energy efficiency. Position the pump near the ground to minimize noise. Choose a pump with demand defrost control to cut down on energy waste.
Ground source heat pumps
Ground-source heat pumps use the earth’s steady underground temperature for heating buildings. These systems circulate a fluid through underground loops to bring heat indoors, providing a more efficient alternative to traditional boilers.
As a clean energy source, ground-source heat pumps emit no pollutants, aligning with zero-carbon goals. They work even better when combined with other renewables like solar or wind power.
These pumps also help even out electricity demand peaks by using onsite generation, possibly reducing their overall costs and promoting efficient energy use.
Despite their initial expense, ground-source heat pumps are cost-effective in the long run. Government incentives and compatibility with existing insulation help lower energy bills and ensure eco-friendly heating. The initial investment in underground loops is offset over time by programs like the Renewable Heat Incentive (RHI), making these systems an economically smart option for sustainable heating.
FAQ’s
What types of renewable heating systems do installers typically offer? Renewable heating installers commonly offer systems like air source and ground-source heat pumps, solar thermal panels, biomass boilers, and sometimes hybrid systems that integrate with traditional heating systems for improved efficiency and lower carbon emissions.
How do I choose the right renewable heating system for my home? The best system for your home depends on several factors including your property’s size, existing heating system, insulation levels, and your specific heating and cooling needs. A professional installer can conduct a site survey to recommend the most suitable system based on these factors.
