Renewable energies in homes: How to make your home more sustainable


Renewable energies

Renewable energies are the present and the future: at present, almost 40% of the energy consumed already comes from renewable sources.

The adjective “renewable” refers to energies that use virtually inexhaustible elements of nature, either because of the amount of energy they contain or because they are capable of regeneration. Some examples of renewable energy sources are the Sun, water, the action of the wind or the heat of the underground layers of the soil.

Renewable energies are more environmentally friendly than energy sources that come from fossil elements, such as oil. In addition, they are unlimited and are considered clean, safe and sustainable, since they do not pollute or generate waste.

The use of renewable energies is mandatory in industry and is gaining more and more importance in residential buildings including Sky Marketing. In fact, since the entry into force of the Technical Building Code in 2007, new construction buildings must have renewable energy facilities for the production of sanitary hot water (DHW).

But betting on renewable energy in homes is not only a legislative obligation, but even if they involve an initial investment, the savings in energy supplies such as electricity, gas or fuel is very high.

Benefits of using renewable energy in homes

More and more people are betting on integrating renewable energy into their homes. This type of energy does not pollute, they are abundant and provide the highest efficiency, which helps us save money. In addition, the maintenance of the equipment is minimal and its durability is guaranteed.

Other advantages of using renewable energy at home are:

  • They go to remote places. Renewable energies can be used in homes that are not served by the electricity grid or natural gas supply, being an interesting option for independent houses located in rural areas or in small population centers.
  • They offer good performance. Renewable energies have optimal performance and durability. On average, these devices retain more than 70% of their initial power, even 30 years after installation.
  • Possibility of generating extra income. Renewable energy self-production systems for domestic use can produce more energy than our home needs and consumes. In this case, there is the option to sell the excess energy.

Use of renewable energies in homes: the best alternatives for domestic use

If you wonder how to make your home more sustainable thanks to renewable energy, these are some of the best alternatives:

1. Solar thermal energy

Solar panels are one of the most widely used renewable energies in the domestic sphere. Its operation is quite simple: a liquid circulates through the plates located on the roof of the house that is heated by exposure to sunlight and transmits its heat to the water for consumption as DHW or in a heating circuit.

Solar panels allow you to reduce your home’s electricity bills by up to 70%.

2. Photovoltaic solar energy

Photovoltaic solar panels are a great investment even if we do not produce enough energy to supply energy to our homes. In fact, it is quite common to use this renewable energy to support a conventional electrical system.

Normally, photovoltaic panels have a storage battery, and the savings in electricity bills can exceed 75%. 

3. Biomass

Biomass is a fuel of vegetable or animal origin, which includes organic residues and waste, and is considered a type of clean, sustainable and renewable energy.

The boilers and biomass stoves are some of the most demanded renewable energy for homes located in cold areas. Most work using the so-called “pellets” as raw material, although some also use used oil or waste from agricultural activities (peach or olive pits).

Compared to oil derivatives, biomass systems allow us to save up to 70% on heating.

4. Aerothermy

Aerothermal energy has been revealed as one of the most efficient alternatives for obtaining heating and hot water for the home.

Aerothermal energy is a renewable energy source that uses the heat contained in the air. The system uses a heat pump to absorb the energy existing in the environment, even at low temperatures, and use it for air conditioning rooms or to heat a water circuit.

The system is efficient and is especially recommended in areas where winters are mild and summers mild (with extreme temperatures and below zero, it is necessary to use a backup heating system).

Its main disadvantage is that space is needed to locate the indoor unit and the hot water storage tank. For this reason, this option is more common in detached houses and single-family homes.

5. Geothermal 

Like aerothermal energy, geothermal energy is a renewable energy that uses a heat pump, although, in this case, the heat is obtained from the subsoil. In this way, the house is heated by taking advantage of the heat stored by the earth that is under the land where the house sits.

Geothermal is a more efficient system than aerothermal since it works even with cold outside temperatures. Its main drawback is the initial investment since it is necessary to drill the ground. 

6. Mini-wind

When we think of wind energy, the large electric mills that are part of many of our landscapes come to mind. But there is also a type of wind energy for domestic use perfect for areas where the wind usually blows.

In this type of installation, wind turbines with power between 15 and 100 kW are used. These small “mills” transform the mechanical energy of the wind into electrical energy.

One of the main advantages of mini-wind energy is that it allows the independent supply of energy in isolated places and far from the electricity grid. However, for the system to be efficient, the wind must blow at a minimum of four meters per second.

Tips for integrating renewable energy into your home

When talking about the use of renewable energy in the home, we must take many aspects into account. Making the most efficient choice will depend on:

  • How your house is built, with what materials and what is its state of insulation.
  • How many people live in it and what patterns of energy and DHW consumption they have.
  • What energy sources does the house currently have, both for air conditioning and for obtaining hot water.
  • What is the potential for improvement thanks to the use of renewable energies (it is not the same to integrate renewable energies to reduce spending on lighting than on air conditioning)?

The best thing, in these cases, is to consult with an expert who assesses the condition of the home and the use to be made of it to choose the most appropriate option for our home and our family.

On the other hand, remember that having an efficient home not only depends on energy production, but also on responsible consumption by the people who inhabit it.

Investing in renewable energy is always a good option” in addition to saving on bills, these systems will revalue your home, increasing its value in case of rent or sale.

Are you looking for a sustainable home? Do you want the highest energy efficiency in your new home? Contact Tajarat properties.


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