September 25, 2022

Rising power prices are main many to think about investing of their houses to devour much less electrical energy and fuel. Listed here are some conclusions.

In response to a Younited-OpinionWay ballot on the influence of inflation on French spending, 40% of these surveyed admit they’ve needed to reduce on their power payments. Their issues are primarily targeted on rising power costs for 88% of them. After rising meals costs (89%).

With back-to-school wired when “inflation is worrying the overwhelming majority of French individuals who anticipate long-term penalties for his or her buying energy,” there are a number of options to chop their electrical energy and fuel payments. Topic to funding and being within the medium-term logic. How? Improving your own home. Listed here are some conclusions.


Even when it’s a expertise that’s now ingrained in society, using photovoltaic panels, nonetheless, isn’t a matter after all for a lot of French folks. “The purpose is to have the ability to devour electrical energy on our personal,” explains Jonathan Audemars, who runs a renewable power firm in Jonquiere St. Vincent, close to Beaucaire. Besides that it is essential to make the primary remark first. “First we have a look at how the shopper consumes electrical energy. As soon as that estimate is decided, we determine on the scale of the set up.”

The selection of photo voltaic power is taking increasingly more house within the minds of the French. So, one other examine, performed by the inventor of inertial heating Rotelecom, exhibits that the function of electrical energy era from photo voltaic power is growing. If electrical energy stays the primary supply of heating (for 36% of respondents), then photo voltaic power is put in: “it will increase from 11% (in Could 2022, ed. word) to 23% (in September 2022, ed. word). )”. The benefit of electrical energy produced by photovoltaic panels is that “we not endure from worth will increase, since we produce electrical energy ourselves and promote the excess to EDF.”

Warmth pump

Jonathan Audemars advises: “Earlier than fascinated by photovoltaics and for it to be efficient, you first must work on decreasing power consumption.” How? By way of “virtuous” heating programs. Those that have a fuel or oil boiler ought to look to the longer term in another way. “The best selection is an air/water warmth pump. Or perhaps a thermodynamic water heater.”

And for many who are heated by previous electrical radiators, there’s once more a extra economical answer: an air-to-air warmth pump, additionally known as “reversible air con”. Dissipates heat air in winter, cool air in summer season. We don’t contact the interior work.


One other answer to decrease your power payments: insulate your partitions. Whether or not it is inside or exterior. “That is the very first thing to do to see if there is a must work on this merchandise, which is the shell of the home,” estimates Jimmy Labrouse, who runs Renova, at Uzès. The purpose of the insulation work “is to make folks devour as little warmth and air con as potential,” remembers Florent Guimet, technical gross sales supervisor at Comptoir Cévenol du Bois in Ales.

There are two sorts of insulation: giant wooden panels for out of doors use (or indoors, for that matter) and bio-resourced wooden wool, “more practical than pure insulation that has the benefit of offering consolation in winter reasonably than summer season.” . Jimmy Labrousse reminds us that 15% of wastage comes by means of home windows, 20% by means of partitions, and 30% by means of the attic. “It’s on this, within the attic, that we should particularly insist on insulation. That is the place the most important supply of financial savings lies.”

If bio-based wooden insulation stays efficient, Daniel Boudon, who runs Iso Combles in Saint-Chapte, in Gard, prefers mineral wool insulation. “It is cheaper and simply as efficient,” he feedback.

Electrical charging station

Increasingly more motorists who’ve an electrical automotive and have house at house are utilizing it. “This can be a logical addition to the set up of photovoltaic panels. We use the generated electrical energy to recharge the battery in our automotive,” notes Jonathan Audemars.

In response to Jimmy Labrus, with regard to electrical terminals, it’s advisable to proceed as follows. “First, set up a bolstered outlet. You’ll be able to at all times use an everyday outlet, however in case of a fireplace, you aren’t insured. Then you may make different preparations, resembling a carport, you probably have sufficient house. gazebo, below which you park your automotive and cost the battery. It’s topped with photovoltaic panels that produce the required electrical energy.”

How a lot is the funding price?

In response to Jonathan Audemars, putting in an air-to-water warmth pump prices “between 10 and 15,000 euros”. “An air-to-air warmth pump prices between 1,500 and 15,000 euros if you wish to warmth all of the rooms in the home.” He remembers that “there are auxiliaries for air-to-water warmth pumps solely, which make up 70% to 80% of the funding.”

As for photovoltaic panels, the whole lot clearly depends upon the set up floor. “That is between 2,800 and three,000 euros per put in kilowatt-hour,” explains Jonathan Audemars. For a house, that is on common “from 3 to 9 kilowatts / hour”. Which is from 9,000 to twenty,000 euros. The amortization of those investments is “between 7 and 10 years”. “That is with a worth improve of three% per yr, as we have now seen in recent times. However, after all, with a 15% improve, as it is going to be subsequent yr, depreciation will probably be sooner.” There may be authorities help to put in photovoltaic panels. “It is 1290 euros for 3 kilowatts per hour.” Furthermore, “in contrast to warmth pumps, this help doesn’t rely on earnings, however on the scale of the set up.”

As for the fittings with insulation, Daniel Boudon estimates the price at about 2,500 euros for a home of about 100 sq. meters. “It’s important to withdraw the bonus, which is round 500 euros,” he provides. The funding will repay in two years.

As for the electrical charging station, costs differ. It takes a median of 1,800 euros to run for 7 hours of charging. “A carport prices about 20,000 euros, and the profitability is about 15 years,” feedback Jimmy Labrous.

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