Home: Costs and advantages of the positive energy building

Bepos’ house produces more renewable energy than its inhabitants consume primary energy. He saves on his electricity bills focusing on the car -without excess production to the EDF solar purchase obligation, benefits from an optimal internal comfort and contributes to reducing the carbon footprint: the «positive energy construction» recorded in the RT 2020 program would offer many advantages. But at what price? Can the cost of building tomorrow’s habitat be profitable? The returns on the experience today allow you to be attempted or not by the offers of the producers consciously.

Bepos House: Definition

RT 2012 standards will soon leave room for those of RT 2020, more restrictive but with a better counterpart to the key. More than the thermal regulation, the RT 2020 underlines the environmental aspect – we also mention the King 2020 – and recommends the Beos house in this context.

Observed or the positive energy building consumes less primary energy than it produces renewable energy

• First of all, this definition supposes the implementation of energy production means drawing on natural resources: the light and heat of the sun, the strength of the wind and water or even biomass.
• In addition to maximizing the production of renewable energy, reaching the criteria to define this type of construction means limiting its energy consumption. The effort is made not only by new buildings – the manufacturer adopts techniques of architecture of bioclimatic design – but also by the inhabitants who consume intelligently without reducing their level of comfort.

Note : The result of the consumption/production ratio is appreciated for a year, to take into account the variations of the production of renewable energy according to the seasons: the surrender of the solar panels increases with the sun.

The definition of the so-called positive house building is not obliged to self-conscious the energy produced: in self-consumption or reinjection on the sale of the network of solar electricity to the EDF solar purchase obligation, for example-is sufficient for the greater production of consumption. This aspect allows you to underline the position of the public authorities in the framework of the RT 2020: at least as much as the savings to be done to improve the purchasing power of families, the positive energy building aims at the impact on the environment by encouraging the increase in green energies in circulation.

Price of new buildings or energy renovation works

More expensive than the RT 2012 house, the price of the positive energy building is justified by different positions:

1. The bioclimatic construction must be designed regarding specific specifications for the system site, in order to optimize in particular the accumulation rate and the return of the heat. Previous technical studies require clear skills that producers appreciate.
2. Thermal insulation materials and ventilation equipment that help to reach the criteria of the cost of the house.
3. The installations that allow you to use renewable energy resources – photovoltaic solar panels, rainwater recovery systems, passive cooling devices, etc. – They increase the price of this house.

Difficult to evaluate an average price for square meter: users in the ile-de-French house are inevitably more expensive for the purchase than the positive energy building built in the countryside and each manufacturer freely fixes its prices. In any case, it requires a difference of over 10 % – from € 1,200/m² – with the price of a new traditional construction.

Note : The individual who is aimed at the positive house in renovation must also provide a higher work budget.

The producers include the 2020 house, return of experience

If the positive energy house is certainly not mandatory under construction by the end of 2020, many actors of sustainable development have already experienced users. The results are positive.

• The positive energy house works! By implementing sufficient technical means and encouraging the inhabitants to intelligent consumption – and all the more reduced to energy, it maintains its promises. In the end, primary energy consumption is lower than the production of renewable energy. Both economically and ecologically, the benefits are eloquent: reduction of the carbon imprint of the building and the amount of electricity and the water bubbles of consumers.
• The positive house offers a higher level of comfort. A right and controlled internal temperature in all seasons, a healthier air, better acoustic insulation and a supply of optimal natural light: the inhabitant is winning at all levels.
• No manufacturer denies the additional cost of this house compared to the 2012 RT building. However, the return to investments is not a utopia. To make the house profitable with positive energy, the individual cannot only self-control his domestic energies to reduce his bills, but also sell the surplus of his electricity production. During the construction or renewal, to optimize the profitability of the positive building, the investor can benefit from state financial aid: Eco-Ptz and Cites in particular.

Note : Investing in a house – a building with positive energy – today, the individual makes a winning bet. In the end, it guarantees a sale price assessed by the quality of domestic comfort and the low energy consumption.

Trust your means of renewable energy production in the sun ground!

Photovoltaic specialist for 10 years, Solar Land has accompanied you in your project to construction or energy renovation: our teams provide and install solar panels that meet the standards of the future RT 2020. Using photovoltaic panels to produce electricity, the individual offers the advantage of a green and free energy and to advance in the direction of the Beppe.