Tags Posts tagged with "nearly zero energy consumption"

nearly zero energy consumption

The successive and persistent heat waves that blighted spain last summer broke new records in electricity demand. specifically on 21 july 2016, peak electrical power demand reached the highest figure of the last five years during the summer season, with 40,192 mw. the widespread use of air conditioning was the main “culprit” however the demand for industrial cooling should not be underestimated.

Even before the major heat waves hit, the electricity consumption of large and medium companies last june had increased by 1.5% compared to the same month last year, according to data from the ire, the power grid index. in the past twelve months, the electricity consumption of these companies was up 2.2% on the same period last year. by sector, industrial consumption rose by 3.6% and services by 1.6%.

 

Compared to june 2014, of the five activities with the greatest electricity consumption, metallurgy demand grew by 2.5%; the chemical industry was down 1.9%; the manufacturing of other non-metallic mineral products increased by 6.6%; the food industry rose by 0.8%; and paper dropped by 17.2%. similarly, the activities that most contributed to the growth in consumption of large companies were metallurgy with an increase of 2.5%; other non-metallic mineral product manufacturing (6.6%); water collection, treatment and distribution (13%); motor, trailer and semi-trailer vehicle manufacturing (7.5%); and rubber and plastics manufacturing (3.8%). Read more…

Manuel Lamúa
Technical Advisor at AEFYT, the Spanish Association for Refrigeration Technology

Article published in: FuturENERGY January-February 2017

somfy

New homes should incorporate the innovation that we are already using in our cars or on our mobile phones, but the technology must be easy-to-use and intuitive. Such technology should significantly help energy efficiency form part of the home to achieve nearly zero energy dwellings.

The European Union Directive 2010/31/EU has standardised the nearly zero energy building (NZEB) as the new challenge for 2020, by reducing energy consumption, optimising installations, increasing the use of renewables and caring for the environment. Mobile solar control systems could improve efficiency yet further to help achieve an NZEB.

These automated systems operate even when the house or building is unoccupied ensuring that the solar protection is always in the optimal position for saving energy. When the building is occupied, the protection is positioned for thermal comfort and illumination.

The saving made by one home depends on four factors: use, orientation, climate zone and constructive solutions. Average domestic consumption is approximately 150 kWh/m2 or some €20/m2. The challenge is to reduce the 150 kWh/m2 to almost zero by 2020. Traditional and innovative constructive solutions have to be incorporated into new homes to achieve the targets set by the EU and standardised under Royal Decree 235/2014 of 5 April with the energy certification.

Innovation and systems have to adapt to the new needs of homes, offering a flexible solution which is customised to cover the requirements of each household and responds to the new commitments to reduce demand and energy consumption. Read more…

Article published in: FuturENERGY March 2016

As part of the “Madrid 0.0 Project” design competition that aimed to study a residential real estate development incorporating nearly zero energy consumption standards that took place in the Madrid municipal district of Torrejón de Ardoz, the COAM, the Madrid Architects’ Association and Solvia, the real estate company of Banco Sabadell, awarded first prize to architects César Ruiz-Larrea Cangas and Antonio Gómez Gutiérrez, from the studio Ruiz-Larrea & Asociados, S.L. The project described in this article looks at the use of systems and materials that resulted in the construction of collective housing with no active heating and cooling installations.

The world is changing. Our mentality is changing. These are not figures of speech, but a reality. Our cities need to respond to all these emerging changes as do our buildings. Rising energy costs, resource depletion and climate change have orchestrated a complete change in outlook and approaches that were previously rejected are now more relevant than ever to respond to current needs.

0.0 Solvia’s Zero Dwellings combine these new tools and apply them to the development of 98 homes in Torrejón de Ardoz, promoted by Solvia. Systems such as heat recovery, ground-air exchange, comprehensive design control to eliminate thermal bridges, together with a precise dimensioning of the insulation and joinery make 0.0 Solvia’s Zero Dwellings the first collective housing in Spain made of wood which minimises the active heating and cooling installations to the maximum. Read more…

Article published in: FuturENERGY June 2015

The University of Valladolid has constructed the LUCIA building (University for an Applied Research Centre) where it showcases the best achievements in various fields of sustainable architecture, assessed and rated by third parties. It could be defined, according to the European directive 2010/31/UE, as a nearly zero energy consumption and zero CO2 building, and in fact the LUCIA building is, indeed, consumes zero energy and produces zero CO2 emissions, with an A energy certification has A and also has the highest standard of leaves in the green and platinum LEED certification.

This article outlines the main strategies that have made it possible to achieve a building with these features at a very affordable price. The LUCIA building was funded by the Regional Government of Castilla y León (Technology Research & Development Infrastructure Programme) and the European Regional Development Fund.

In the LUCIA building the University of Valladolid proposes to innovate and serve as a benchmark for its numerous centres in terms of energy efficiency and sustainable architecture, including social and economic aspects. This is considered to be an ideal opportunity for research in achieving almost zero energy consumption buildings according to Directive 2010/31/EU of the European Parliament, far surpassing their expectations. The basis for their achievement will be the coordination and consistency between bioclimatic design, the most efficient systems and technologies, and the use of renewable energy exclusively, including geothermal, solar and biomass as a local energy product with potential to reduce energy dependence on fossil fuels and promote a more self-sufficient economy.

Article published in: FuturENERGY June 2014

NEHOGAR

The neHogar project in Asturias is a showcase of construction techniques applied to the design and construction of a “nearly Zero-Energy Building” which consumes 90% less energy, with an A energy rating and which minimizes its ecological footprint, resulting in an environmentally sustainable house with nearly zero energy consumption.

The construction of a residential block based on energy efficiency criteria involves the guarantee of significant savings on gas and electricity bills. But even if we are aware of these advantages, until recently energy consumption in housing has not been a relevant factor for builders or users. Coupled with this lack of interest was the extra cost involved in constructing a passive-type home, without this being recouped over the building’s useful life.

Today we are finding signs of the fact that slowly but surely things are beginning to change. An example of these winds of change is the project called neHogar, which has also been a successful story of collaboration between Asturian companies which are experts in energy, building and construction, as part of the Asturias Consortium for Energy Technology (AINER), along with the cooperation of the Asturian Energy Foundation (FAEN), also a member of the Consortium.

Article published in: FuturENERGY May 2014

The aim of the R2CITIES project, led by CARTIF, is to develop innovative technologies for energy efficiency, energy saving and CO2 emissions reduction ; these will be showcased on a life-size scale in around thirty buildings in Valladolid’s Cuatro de Marzo neighbourhood, and can easily be replicated in renovation projects in other European cities.

The R2CITIES project (Renovation of residential urban spaces: towards nearly zero energy) aims to develop and demonstrate a strategy which is open and can be easily replicated for the design, construction and management of major retrofitting projects for neighbourhoods on a large scale in order to achieve cities with nearly zero energy consumption.

The project, which kicked off in July 2013, will take place at demonstration spots located in three residential quarters: Spain (Valladolid), Italy (Genoa) and Turkey (Kartal-Istanbul).

Article published in: FuturENERGY November 2013

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