21 NOV 2022

Iberdrola promotes thermal insulation to help families reduce their energy costs by 30%

  • The company has launched a new service that eliminates half of the heat losses in homes in a single day and without building work
  • A typical residence of about 80 square metres can achieve annual savings equivalent to the consumption of one and a half months of heating

Iberdrola continues to deploy actions aimed at helping Spanish families reduce their energy consumption. The company has launched a new campaign to promote the thermal insulation of homes, which can reduce domestic energy expenditure on heating and cooling by up to 30%.

In Spain, eight out of ten dwellings are in low-energy efficient buildings, which results in half of the energy consumed in homes being lost to the outside through walls and roofs.

To tackle these heat leaks and help households save on their bills, especially in the current context generated by high gas prices, Iberdrola has launched a new thermal insulation service this year, through Smart Climate. On average, households spend two out of every five euros of their energy costs on heating and cooling, a figure that can be even higher in colder climates.

The company's solution makes it possible to mitigate energy losses definitively in a single day and without the need to carry out works in the home or request permits from the Community of Owners.

Insulation is carried out by filling the air chambers between the outer face of the building and the wall of the dwelling with glass mineral wool. This double partition wall is common in the vast majority of residences in Spain. It can also be used to insulate the roof in the case of attics or single-family houses that have a false ceiling, as well as in independent dwellings that have an uninhabited under-roof.

The injection-moulded material, made from recycled glass, requires no maintenance, is resistant to water, insects and rodents, improves fire protection as it is fireproof and provides homogeneous insulation while preventing draughts. In addition, it acoustically insulates the house from outside sounds.

This technique is currently the one that allows the greatest energy savings per euro invested. It is a solution that has been used for more than 30 years and is well established in countries with a continental climate such as the United Kingdom, where more than 13 million houses have already been insulated using cavity wall insulation.

With a total investment of less than 1,000 euros, a normal residence in Spain, a typical flat of about 80 square metres, can reduce its consumption by 1,800 thermal kilowatts per year, the equivalent of using one and a half months less heating per year, which with a free-market gas tariff means a saving of about 350 euros in the bill.

To help customers interested in insulating their homes, the company has created a simulator that calculates the reduction in heating consumption and provides an estimated budget, based on the basic characteristics of the home.

On the other hand, insulation facilitates the replacement of gas and oil boilers with new efficient and sustainable air-conditioning systems, such as aerothermal energy, by reducing the thermal needs of the home, which allows the use of lower power equipment.

Savings through energy efficiency

The current situation of rising prices in the energy markets due to high gas prices has shown that electrification is the most efficient and sustainable solution, and the one that allows families to make the greatest savings. Aware that the best energy for customers and for the planet is that which is not consumed, Iberdrola has launched various initiatives in recent weeks to help its customers reduce their energy costs while maintaining comfort in their homes.

The company plans to send a total of 90 million communications with personalised savings advice to its more than 11 million electricity and gas customers in Spain during the autumn and winter months, when energy demand is higher due to lower temperatures.

Through an intelligent algorithm that estimates the energy expenditure of household appliances, heating and lighting and compares it with that of other households with similar characteristics, Iberdrola is able to detect inefficient usage habits. Customers then receive individualised information on the cost to their bill, the deviation from the average and an estimate of the savings that can be obtained by following these notifications.

Iberdrola has also launched a campaign through Smart Solar to promote photovoltaic self-consumption, which can save families up to 70% on their annual bill. Iberdrola's self-consumers can offset 100% of their bill with the energy fed into the grid and divert subsequent surpluses to cover consumption at another residence.

The development of smart solutions is one of the strategic lines of the Iberdrola group, which expects to reach 40 million contracts with customers worldwide by 2025 with services such as self-consumption, energy storage, heat pumps and electric mobility, as well as thermal insulation.