How does it work?
Imagine wrapping a whole house in a tea cosy. Instead of just insulating the walls and lofts, the insulating layer is continuous. The emphasis is on super-insulation and stringent levels of airtightness to create a ‘tea-cosy effect’ (or minimal thermal bridging). The houses are also designed to optimise heat from the sun (passive solar gain). The only techie bit is the mechanical ventilation and heat-recovery system (MVHR), which provides the house with fresh air and helps to warm it by recovering heat from the extracted air and transferring it to the incoming air. In addition, most of the of heat generated inside – body heat from people and animals, heat from lighting and cooking, as well as solar gain – is retained within the building. As a result you hardly need any traditional heating or air conditioning systems.
Friday, October 29, 2010
PassivHaus construction
An interesting article from The Ecologist about PassivHaus Construction
Friday, October 22, 2010
Europe facing €1trn bill to upgrade electricity grids
A draft version of the EC energy strategy estimates that the EU will have to spend about €1trn by 2020 to update, expand and strengthen its ageing electricity grids.
The European Union's five main energy priorities for the next ten years must be energy efficiency, an integrated market, technological leadership, energy security and strong international partnerships.
Read the article
The European Union's five main energy priorities for the next ten years must be energy efficiency, an integrated market, technological leadership, energy security and strong international partnerships.
Read the article
Tuesday, October 19, 2010
Policy Pathways: Showing the way to energy efficiency implementation now
Policy Pathways: Showing the way to energy efficiency implementation now is a publication by the IEA aimed at helping governments implement energy efficiency policies.
This first issue is about performance standards of appliances.
Read the article
This first issue is about performance standards of appliances.
Governments are missing a great opportunity to save energy. Even the countries that are most proactive on energy efficiency have implemented less than 60% of the IEA energy efficiency recommendations,” said IEA executive director Nobuo Tanaka at the launch in Paris.
Read the article
Tuesday, October 5, 2010
International Low-Carbon Energy Technology Platform
IEA created the Low-Carbon Energy Technology Platform.
Its aim is to accelerate and scale-up action for the development and deployment of clean energy technologies by: catalysing partnerships and activities at regional and national levels; sharing best-practice technology policy; and reviewing progress on low-carbon technology deployment to help identify gaps in policy and international collaboration.
Thursday, September 30, 2010
Q&A about new energy labels for TVs, refrigerators, dishwashers and washing machines
The European Commission set new energy labels for appliances.
How does energy labelling concern consumers?
Televisions; refrigerators, freezers; dishwashers and washing machines represents on average 30% of the electricity bill paid each month by households. The energy label will allow the consumer in the shop to easily see which are the appliances consuming the least energy.
What are the main differences between the old and the new label?
The new labelling system allows up to three classes (A+ to A+++) to be added on top of class A so as to provide consumers with more differentiation between products. If the majority of the market reaches the upper two classes (A++, A+++), the classification will be reviewed. However, it is expected that classes A+++ are close to the technological limit of possible efficiency improvements.
Another novelty is that the label is language free and will be added in the packaging of each appliance. It will allow retailers to easily attach the label to the appliances at the point of sale and avoid today's situation where appliances are often mislabelled.
How much energy can a household save with the highest energy class on the label?
The actual amount of energy saved depends of course on a concrete product (its size and features). For example, a refrigerator-freezer in class A+++ will consume on average 60% less than a refrigerator-freezer in class A. A dishwasher or a washing machine in class A+++ will consume on average 30% less than a dishwasher or a washing machine in class A.
Will the TV and other equipment be more expensive for consumers?
The label scheme does not increase the prices. Energy efficient products tend to cost more but they save energy. The label gives the consumer the choice which product he prefers.
Does the introduction of these new labels ban some household equipment from the market?
The label does not ban any product from the market but provides information and market transparency to assist consumers to make an informed purchasing decision. It ensures that all products are comparable using the same test methods and classification. The aim of energy labelling is to provide incentives for industry to develop further improved products and innovations beyond the "minimum" mandatory energy efficiency levels.
Why does the energy label for televisions have seven classes from A to G while the energy label on refrigerators, dishwashers and washing machines goes up to class A+++?
The principle is that the energy label starts with the classes A to G when it is introduced for the first time on the market (which is currently the case for televisions). Refrigerators, dishwashers and washing machines have already been displaying the energy label with the A to G classes for more than 10 years. As a result of the technological improvement triggered by the label, around 90% of those products currently reach class A. This is why new classes have been introduced on top of class A to allow consumers to differentiate "better than A" products.
How will the new label be introduced at the point of sale? Is an old class A of household refrigerating appliances, dishwashers and washing machines the same as the new one?
The new label will gradually be introduced at the point of sale, meaning that consumers are likely to see the old and the new label close to each other for several months at the point of sale. However, since an old class A or B appliance is equivalent to a new class A or B, consumers will still be able to compare products at the point of sale on the basis of both energy labels.
When will the Regulations enter into force and when will the label become mandatory?
The entering into force of the Regulations is subject to the right of objection of the European Parliament and Council. If they do not object, the Regulations should enter into force around December 2010 or February 2011. The label will be allowed on a voluntary basis immediately after the entry into force of the Regulation and become mandatory on all appliances placed on the market one year after the entry into force of the Regulations.
What is the difference between energy labels, ecolabels and ecodesign?
Energy labels are adopted by the European Commission on a product by product basis (energy labelling Directive 2010/30/EU). They display ranking of products according to their energy efficiency consumption on an A to G scale, the A class (green) being the most energy efficient appliances and the G class (red) the least. Once the majority of products reaches class A, up to three classes (A+/A++/A+++) are added on top of class A.
Energy labels are mandatory for all appliances placed on the EU market and should always be clearly displayed on each appliance at the point of sale.
Ecolabels are voluntary labels adopted by the European Commission on a product by product (Ecolabel Regulation (EC/66/2010). The Ecolabel, i.e. the flower logo, may be displayed on products and promotional material on a voluntary basis if they respond to a list of the criteria pre-defined in implementing measures of the Commission and guaranteeing that the product is among the most environmentally friendly in his sector.
Ecodesign requirements are adopted by the European Commission on a product by product basis (ecodesign Directive EC/2009/125). They set minimum requirements on the performance of the products so as to improve their environmental impact. Ecodesign requirements are mandatory and must be met by all products to be allowed to be placed on the EU market. They are based on an assessment of the impact of the product on the environment throughout its life-cycle, starting from the production stage, through to production, distribution and disposal.
How does energy labelling concern consumers?
Televisions; refrigerators, freezers; dishwashers and washing machines represents on average 30% of the electricity bill paid each month by households. The energy label will allow the consumer in the shop to easily see which are the appliances consuming the least energy.
What are the main differences between the old and the new label?
The new labelling system allows up to three classes (A+ to A+++) to be added on top of class A so as to provide consumers with more differentiation between products. If the majority of the market reaches the upper two classes (A++, A+++), the classification will be reviewed. However, it is expected that classes A+++ are close to the technological limit of possible efficiency improvements.
Another novelty is that the label is language free and will be added in the packaging of each appliance. It will allow retailers to easily attach the label to the appliances at the point of sale and avoid today's situation where appliances are often mislabelled.
How much energy can a household save with the highest energy class on the label?
The actual amount of energy saved depends of course on a concrete product (its size and features). For example, a refrigerator-freezer in class A+++ will consume on average 60% less than a refrigerator-freezer in class A. A dishwasher or a washing machine in class A+++ will consume on average 30% less than a dishwasher or a washing machine in class A.
Will the TV and other equipment be more expensive for consumers?
The label scheme does not increase the prices. Energy efficient products tend to cost more but they save energy. The label gives the consumer the choice which product he prefers.
Does the introduction of these new labels ban some household equipment from the market?
The label does not ban any product from the market but provides information and market transparency to assist consumers to make an informed purchasing decision. It ensures that all products are comparable using the same test methods and classification. The aim of energy labelling is to provide incentives for industry to develop further improved products and innovations beyond the "minimum" mandatory energy efficiency levels.
Why does the energy label for televisions have seven classes from A to G while the energy label on refrigerators, dishwashers and washing machines goes up to class A+++?
The principle is that the energy label starts with the classes A to G when it is introduced for the first time on the market (which is currently the case for televisions). Refrigerators, dishwashers and washing machines have already been displaying the energy label with the A to G classes for more than 10 years. As a result of the technological improvement triggered by the label, around 90% of those products currently reach class A. This is why new classes have been introduced on top of class A to allow consumers to differentiate "better than A" products.
How will the new label be introduced at the point of sale? Is an old class A of household refrigerating appliances, dishwashers and washing machines the same as the new one?
The new label will gradually be introduced at the point of sale, meaning that consumers are likely to see the old and the new label close to each other for several months at the point of sale. However, since an old class A or B appliance is equivalent to a new class A or B, consumers will still be able to compare products at the point of sale on the basis of both energy labels.
When will the Regulations enter into force and when will the label become mandatory?
The entering into force of the Regulations is subject to the right of objection of the European Parliament and Council. If they do not object, the Regulations should enter into force around December 2010 or February 2011. The label will be allowed on a voluntary basis immediately after the entry into force of the Regulation and become mandatory on all appliances placed on the market one year after the entry into force of the Regulations.
What is the difference between energy labels, ecolabels and ecodesign?
Energy labels are adopted by the European Commission on a product by product basis (energy labelling Directive 2010/30/EU). They display ranking of products according to their energy efficiency consumption on an A to G scale, the A class (green) being the most energy efficient appliances and the G class (red) the least. Once the majority of products reaches class A, up to three classes (A+/A++/A+++) are added on top of class A.
Energy labels are mandatory for all appliances placed on the EU market and should always be clearly displayed on each appliance at the point of sale.
Ecolabels are voluntary labels adopted by the European Commission on a product by product (Ecolabel Regulation (EC/66/2010). The Ecolabel, i.e. the flower logo, may be displayed on products and promotional material on a voluntary basis if they respond to a list of the criteria pre-defined in implementing measures of the Commission and guaranteeing that the product is among the most environmentally friendly in his sector.
Ecodesign requirements are adopted by the European Commission on a product by product basis (ecodesign Directive EC/2009/125). They set minimum requirements on the performance of the products so as to improve their environmental impact. Ecodesign requirements are mandatory and must be met by all products to be allowed to be placed on the EU market. They are based on an assessment of the impact of the product on the environment throughout its life-cycle, starting from the production stage, through to production, distribution and disposal.
Thursday, September 23, 2010
Carbon capture and storage (CCS) network
The CCS network is the first network of CCS demonstration projects.
More information: Commission sets up world's first project network for CO2 Capture and Storage
More information: Commission sets up world's first project network for CO2 Capture and Storage
Wednesday, September 22, 2010
EU risks missing efficiency goal
A report by the European Climate Foundation (ECF) concludes that EU's 20% energy efficiency goal for 2020 may not be reached. Despite 2008 economic recession and existing efficiency and renewable energy policies Europe will still have to save 208 million tonnes of oil equivalent.
The 2006 EU action plan on energy efficiency will be reviewed soon.
Source: ECEEE - EU risks missing efficiency goal, report warns
More information: Roadmap 2050
This is more than half of what is needed to achieve the 20% non-binding target, which is equivalent to energy savings of about 394Mtoe. The gap can be bridged almost entirely by strengthening energy efficiency efforts in end-use sectors: residential, services, transport and industry. Further savings can be achieved by improving the energy efficiency of power generation and refineries.
The 2006 EU action plan on energy efficiency will be reviewed soon.
Source: ECEEE - EU risks missing efficiency goal, report warns
More information: Roadmap 2050
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