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1 HOW TO CONTRIBUTE TO SAVING ENERGY IN PUBLIC BUILDINGS ? Capacity building workshop on energy efficiency in buildings Organized as EWG_EE building coordinator:Collaborates,

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Presentation on theme: "1 HOW TO CONTRIBUTE TO SAVING ENERGY IN PUBLIC BUILDINGS ? Capacity building workshop on energy efficiency in buildings Organized as EWG_EE building coordinator:Collaborates,"— Presentation transcript:

1 1 HOW TO CONTRIBUTE TO SAVING ENERGY IN PUBLIC BUILDINGS ? Capacity building workshop on energy efficiency in buildings Organized as EWG_EE building coordinator:Collaborates, as organiser of 5th Gps SC meeting: 13th June 2014, Lakatamia Municipality (Cyprus)

2 2 AGENDA – h. Welcome and presentation of activity – h. “Energy use in buildings: use it better, use it less”. Projection of EU DG- Energy video. 11:20-11:30 h. Topics and use of a basic checklist to auditing our buildings – h. Tour of the building. Practical activity – h. Discussion and contributions :00 h. Closing remarks-Workshop evaluation

3 3 “Energy use in buildgins: use it better, use it less” On average, we spend 90% of our time inside buildings in Europe. The energy that we consume there accounts for 40% of total European Union consumption. That’s more than the share of industry and transport. But many buildings perform poorly in energy terms. That’s why European directive on Energy Efficiency increase the requirements regarding energy performance in residential and office buildings in the whole of the European Union. The video-report was filmed in Belgium, Portugal, the Czech Republic and Austria. It illustrates the main points of the Directive regarding the energy performance of buildings and includes interviews with European Commissioner for Energy, owners, energy adviser, representatives of professionals from building sector, planning institutions, etc. Let's see it. Best a picture than words !

4 4 AUDITING OUR BUILDINGS Objectives Present the contents and topics of a basic Checklist on energy audits, saving and efficiency energy measures, between municipal staff, managers and users of public buildings. Recognize the main aspects affecting EE in buildings and opportunities to improve it. to identify aspects on EE in buildings Learn about methodology and tools, finding things are going on, things are going wrong and measures to solve it. Use specific template (checklist ) to audit different topics in a public building. Discuss about the results and the opportunities to improve, between participants.

5 5 THE BASIC CHECKLIST available to office or general buildings. It could be adapted to other type of public buildings (schools, sports facilities, hospitals, cultural etc.)

6 6 BUILDING GENERAL DESCRIPTION Daily operation (h/day): Annual operation (days/year): General occupancy (number of people): Built surface (m 2 ): Type of building (isolated, between others, inside another): Main façade orientation: How are the doors of main access? How are the majority of windows ? Are there skylights? Annual electricity consumption (KWh/year): Annual gas consumption (m 3 /year): Other annual source of energy consumption:  Fuel oil (lt)  Butane (Kg)  Propane (Kg)

7 7HEATING Does exist a central heating system ? How many boilers it has ? Source of energy that it uses:  Natural Gas  Butane  Propane  Fuel oil  Biomass Complementary source of renewable energy:  Solar thermal  Biomass  Geothermal  Other: Uses of the heating system:  Hot water production  Heating production  Heating + hot water production Nominal power of boilers (Qn): Nominal performance of boilers (%):

8 8HEATING Useful Power of boilers (Pn): Does exist a temperature regulation system ? At what temperature is regulated ?  Cold seasons (winter):  Hot seasons (summer): Daily operation (hours/day)  Cold seasons (winter):  Hot seasons (summer): Heating level has been reduced in stairs, storerooms, corridors or areas with high level of physical activity ? Time switches are programmed to match occupancy patterns ? Is the heating system switched off a short time before the end of the working day ? Heating surfaces and filters are cleaned regularly ? Are the radiators located with no piece of furniture in front of them ?

9 9 Changing Furnace Filters Often will improve air quality and help you save energy

10 10 COOLING SYSTEM Does exist a central cooling system ? If not, how many indoor units are there ? Global cooling capacity (KW): Global electrical power (KW): What coefficient of performance they have ? What energy efficient ratio they have ? Does exists a temperature regulation system ? At what temperature is regulated ?  Cold seasons (winter):  Hot seasons (summer): Daily operation (hours/day):  Cold seasons (winter):  Hot seasons (summer): Is the air conditioning switched off a short time before the end of the working day ?

11 11INSULATION Does exist roof insulation and draught proofing? All heating/hotwater pipework is insulated ? Elements or system to solar control in openings? Outdoor: What : Indoor: What: Windows have been replaced with multiple glazing windows ? External doors are fitting with doorclosers?

12 12 Older or poorly sealed windows are a major source of air leaks. Caulking is a low-cost fix to eliminate air leaks and decrease energy usage Air leaks around doors are comparable to having a 6-inch hole right in the middle of the door. Replacing old, worn out weather-stripping will prevent air leaks, save energy and make you more comfortable.

13 13 VENTILATION Does exist a central ventilation system ? If not, how many units of fans are there ? Global electrical power (KW) Does exists an speed regulation system ? Does exists a running mode depending on the occupation of the areas ? Fan surfaces and filters are cleaned regularly ?

14 14 ELECTRICAL OFFICE EQUIPMENT Are computers networked ? Are computers to the most part provided with automatic monitor switches ? Has any hibernation system been implemented in computers ? Do computers, printers, photocopiers, fax and other electrical office equipment in a switched off “position” (night time and holidays) ? Have environmental criteria been considered in public procurements of office IT equipment and imaging equipment ?  Energy Star label:  Eco label:  GPP toolkit criteria:  Other:

15 15 INDOOR LIGHTING Number of halogen lamps: Number of HSP lamps: Number of fluorescent lights: Number of LED technology lights: Number of energy saving bulbs: Number of incandescent light bulbs still in use: If main uses are organized to maximise the use of daylight ? Does exist different controlling light circuits (i.e. per areas): Cleaning staff has been encouraged to light only the areas where cleaning is currently undertaken ?

16 16 Choosing light bulbs Main ceiling bulbs need to provide enough light and create the ambience you are looking for. PremiumLight recommends LEDs as the best choice for replacing old incandescent or halogen bulbs. CFL bulbs make a good secondary choice - these have a cheaper purchasing price and a good quality CFL can last for up to 15 years. In some rooms a large amount of light is needed (bathrooms, parkings, archives), but they may be used less frequently. A Fluorescent Tube is a good choice here, where the instant full brightness of an LED may be less important.

17 17 Replace bulbs There are two main types of energy efficient light bulbs. Compact Fluorescent Lamps (CFLs) and Light Emitting Diodes (LEDs). CFLs are what you typically think of as an energy efficient light bulb. CFLs are a cost-effective option for most general lighting requirements. Replacing a traditional light bulb with a compact fluorescent light bulb (CFL) of the same brightness will save you around4 euros per year, or 56 euros over the lifetime of the bulb. LEDs are available to fit both types of fittings and are particularly good for replacing spotlights and dimmable lights. Though more expensive to buy initially, they are more efficient than CFLs and will save you more money in the long term. By replacing 4 halogen spots with LEDs over 10 years would save around 180 euros, generate 12 fewer waste bulbs and use 980 kWh less energy.

18 18 Quick Guide to Common Light Bulbs

19 19 Common Light Bulbs Cost Comparison

20 20 How to replace old, inefficient bulbs by CFL and LED technologies Incandescent light bulbs Halogen lights

21 21 Find quality bulbs and their associated running costs Useful links to help you make the best choice An impartial guide to the most energy-efficient products on the market, including a comprehensive lighting section. The Lighting Industry Association Laboratories test and verify lamps and luminaires against performance criteria and safety standards to provide assurance on lighting products

22 22 Another way to save energy: Turn lights off ! Changing how we use our lights by implementing control mechanisms and being conscious of our behavioural habits can save money and energy. Few easy things to help you start saving: Always turn lights out when leaving a room regardless of how short a period it is for Be conscious of how many lights you have on and whether they all need to be in use Arrange light switches so that its convenient to turn them off i.e. place switches at top and bottom of stairs, each end of a hallway and each door to a room Use a sensor and timer on external lights so they are only in use when they need to be Use appropriate lightings, concentrated light for reading. By having a range of lights in a room with separate switches will make this easier.

23 23 TOUR OF THE BUILDING Practical activity Participants, divided in groups (2 types of TEAMs) and guided by the EWG_EE building coordinator, will realize a visit through the building in order to put in practice some of the topics dealt in the basic checklist.

24 24 DISCUSSION AND CONTRIBUTIONS All participants, divided per teams, will share the main results and conclusions obtained from the fulfilled checklist, in order to gain more knowledge and regarding possible energy saving measures in a public building. The discussion will follow the next scheme: THINGS WE FOUND OK USERS BEHAUVIOUR RECOMMENDATIONS SOLUTIONS TO CORRECT/PREVENT THINGS WE FOUND WRONG

25 25 USERS BEHAVIOUR A recent behavioral study concludes that low cost changes in building operations can save from 5% to 30% of buildings energy use, but often these changes aren't made.recent behavioral study Behavioral strategies to bridge the gap between potential and actual savings in commercial buildingsBehavioral strategies to bridge the gap between potential and actual savings in commercial buildings. Principal Investigator: Alan K. Meier. University of California, Davis (February 2014).

26 26 RecommendationsWhat we found IEQ: Indoor Environmental Quality Source: Behavioral strategies to bridge the gap between potential and actual savings in commercial buildings

27 27 Recently, Granollers City Council has been invited to collaborate in BESAVING project, presented to the 2014/2015 call of HORIZON 2020 programme. The aim is increase energy efficiency on public buildings through the development, dissemination and application of an IT ecosystem that comprises direct user interaction, automatically generated data (Smart Meters and other sources) and social networks. This system will promote energy-efficient habits in buildings and will be applicable to the general public. BESAVING project is leaded by Enerbyte, a company from energy sector, and has as a partner Estebanell &Pahissa, another local electricity distribution company. This two companies has proposed to Granollers City Council to implement the solutions developed in some public buildings, in order to take advantage of the potential energy savings with innovative and behavioural changes initiatives. If the project is approved, Granollers City Council will participate in it from 2016 and the buildings chosen will be some of the involved in pilot case 1 of Green Partnerships project.

28 28 THANKS FOR YOUR COOPERATION ! Environmental Department. Granollers City Council Phone


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