Presentation on theme: "“Green ENERgy AudiTIng for a LOw CarboN Economy” Best practices on Simplified Energy Audits and policies / strategies will be influenced Rogelio Zubizarreta."— Presentation transcript:
“Green ENERgy AudiTIng for a LOw CarboN Economy” Best practices on Simplified Energy Audits and policies / strategies will be influenced Rogelio Zubizarreta Jiménez Instituto Andaluz de Tecnología
THE GENERATION PROJECT Contents Objetives Partners Project Management Best Practices Policies / Strategies
Exchange and transfer of best practices & knowledge in Building Energy Audits in public buildings Harmonisation of audit schemes to strengthen regional and European policy frameworks Development of an innovative methodology (Simplified Energy Audit – SEA) THE GENERATION PROJECT Objetives Knowing the performance of buildings in a cost-effective way
THE GENERATION PROJECT Partners 1) Andalusian Institute of Technology - IAT (Andalusia, SP) Lead Partner & Financial Manager Innovation & Technology experts 2) The Environment Centre - tEC (South East England, UK) Communication Manager Sustainable development advisors 3) Province of Modena - PoM (Emilia-Romagna, IT) Legacy Manager Public Authority 4) AGH University of Science and Technology from Krakow (Malopolska,PL) Scientific Manager University
THE GENERATION PROJECT VALIDATION OF THE DEVELOPED TOOLS IDENTIFICATION OF STAKEHOLDERS Date Base loading DEVELOPMENT OF A COMPUTER-BASED TOOL AND A METHODOLOGY FOR SIMPLIFIED ENERGY AUDITS Relevant characteristics definition to evaluate energetic performance of buildings Physical model development for energy building performance Physical model adjustment Methodology for simplified energy audits development. Methodology for simplified energy audits validation COMMUNICATION ACTIONS Project Management STATE OF PLAY ANALYSIS Advisory Board definition: University - Public Organization – Private sector Energy audits collection data (20 public buildings per region) SWOT analysis Best practices identification (Total of 8 BP) MOVING FROM COMMUNICATION TO POLICY
THE GENERATION PROJECT Best Practices No 1. Calculation of Energy Demand No 2. Calculation of Operative Performances No 3. Holistic calculation of energy reduction proposals No 4. Analysis and Validation of Comfort Conditions No 5. Analysis of Distribution of Energy Consumption No 6. Sample Period No 7. Behavioural Change No 8. Cost-effectiveness
THE GENERATION PROJECT Best Practice No 1. Calculation of Energy Demand Most often, the energy demand of buildings is not taken into account in an energy audit, due to the complexity of calculation (solar radiation, wind speed and direction, occupancy, lighting and equipment, etc.). By omitting the energy demand, consulting firms are not really quantifying the measures to reduce it. Calculation of energy demand will allow a reduction of a building’s energy consumption through the reduction of the demand itself. The main objective of this best practice is to ensure that the tool provide a simplified way of calculating the energy demand of buildings.
THE GENERATION PROJECT Best Practice No 1. Calculation of Energy Demand
THE GENERATION PROJECT Best Practice No 2. Calculation of Operative Performances Usually, calculations of energy consumption only consider nominal conditions “COP/EER” specified by HVAC equipment manufacturers forgetting an important deviation in respect to the operative conditions (even up to 50%). This fact will then lead to incorrect calculations for improvements focused on the efficiency of the building’s HVAC systems. Energy audits do not usually consider operative performances COP/EER of HVAC systems due to the complexity of measurement. Calculation of operative performances COP/EER will permit consulting firms to quantify proposals focused on improving the efficiency of HVAC systems.
THE GENERATION PROJECT Best Practice No 3. Holistic calculation of energy reduction proposals The energy reduction proposals should be based on coherent technical analysis where each factor is connected with all the others. Example: increasing the building walls thermal insulation should result in a reduction of the level of space heating thermal power needed. Modifying both walls thermal insulation and heating thermal power could be incompatible! The approach will enable consulting firms to apply the methodology in order to achieve optimal solutions, covering each of the main elements influencing energy demand and energy consumption in buildings.
THE GENERATION PROJECT Best Practice No 4. Analysis and Validation of Comfort Conditions The state of art analysis has showed that the consulting firms often do not consider comfort conditions in energy audits. Omitting comfort conditions may result in a deterioration of comfort standards compared with user requirements: oversizing the energy system. Analysis of building comfort conditions can result the optimization of energy demand and energy consumption. The main objective of this best practice is to ensure that the comfort conditions analysis will be applied in simplified energy audits: optimal economic effects.
THE GENERATION PROJECT Best Practice No 4. Analysis and Validation of Comfort Conditions
THE GENERATION PROJECT Best Practice No 5. Analysis of Distribution of Energy Consumption The metered electric data is usually available on a monthly basis. Using this data it is possible to distinguish the HVAC system from all other loads by comparing the load in the months when this system is on with the load in the months when is off. The separation of the other electric loads (lighting, equipment, etc), may only be achieved by calculating analytically their single amount, for example summing up all lighting equipment power and estimating the hours of operation The main objective of this best practice is to provide suggestions to energy auditors on the easiest solutions for separating the different loads within a building. Using the obtained information the energy auditor can identify energy waste and suggest interventions and improvements.
THE GENERATION PROJECT Best Practice No 5. Analysis of Distribution of Energy Consumption
THE GENERATION PROJECT Best Practice No 6. Sample Period The acquisition of electric loads requires a higher sampling frequency and a shorter time duration; while thermal flow meter data requires lower frequency sampling over longer time periods. The flow meter sampling duration for obtaining separate flows is typically a full thermal season, and the sampling frequency may be once per month. In the case of acquiring electric consumption data the duration of the acquisition time should be at least some months, in order to separate the HVAC system load from the basic load due to artificial lighting and equipment. The main objective is to suggest a suitable sampling time and frequency for the two types of consumption data for energy auditors requiring more detailed information on energy flows.
THE GENERATION PROJECT Best Practice No 7. Behavioural Change It is essential that people are made aware of the small changes they can make in their day to day use of their building, to make significant energy savings. It will produce a behavioural change document, with recommendations for reducing energy demand and consumption. In the case of public buildings which have frequently changing visitors, staff within buildings could create a behaviour change campaign, using posters etc. The main objective of this best practice is to encourage inhabitants of public buildings, and the wider public, to modify their behaviour in order to reduce the energy demand and consumption within the buildings they inhabit.
THE GENERATION PROJECT Best Practice No 8. Cost-effectiveness High cost has been found to be a barrier to the take up of energy audits, particularly in large/complicated buildings owned by public bodies. The tool will be formulated so that non-specialists are able to use it to carry out audits. The user must have a reasonable degree of knowledge of energy systems/energy auditing. The quality of the results and recommendations should not be compromised, but should be balanced against costs. The main objective is to ensure that the methodology and tool provide a way of conducting energy audits in a more economical manner (saving time, initial costs and human resources).
THE GENERATION PROJECT POLICIES AND STRATEGIES TO BE INFLUENCED BUILDING SECTOR Responsible for about 40% of EU’s final energy consumption and CO 2. Potential for cost-effective energy savings (EU will consume 11% less final energy in 2020). PROJECT’S CENTRE OF GRAVITY To improve energy efficiency of the partner regions through regulation, promotion and policies. To promote a Low Carbon Economy through: Greenhouse gases in public buildings. Reduction of energy consumption. Reduction of carbon footprint
THE GENERATION PROJECT POLICIES AND STRATEGIES TO BE INFLUENCED 20-20-20% TARGETS Reduction of: Increase of: EU ACTION PLAN FOR ENERGY EFFICIENCY Highlights the importance of Energy Audits to supply useful information which is often difficult to obtain, and identify energy-saving opportunities. ENERGY END-USE EFFICIENCY AND ENERGY SERVICES DIRECTIVE (2006/32/EC) To develop efficient and high quality energy audit schemes. To use energy efficiency and demand-side management as alternatives to new supply and for environmental protection. 20% of energy consumption 20% of greenhouse gas emissions 20% of share of renewables
THE GENERATION PROJECT POLICIES AND STRATEGIES TO BE INFLUENCED TO SUM UP, THE GENERATION PROJECT... Will allow strengthen regional policy frameworks through the transfer of knowledge and harmonization of audit schemes. Obtained sustainable results can be mainstreamed at the European level and beyond. Improves the effectiveness of regional development policies and instruments through the exchange, sharing and transfer of policy experience, knowledge and best practices. The GENERATION project will deliver mainstreaming results that will facilitate the transition towards a low carbon economy, contributing to improve the triple vertex of sustainable development: environment, economy and social.
THE GENERATION PROJECT IAT Málaga and International Programmes Unit Tfno. 95 446 80 10 Fax: 95 446 04 07 http://www.iat.es c/Leonardo da Vinci 2 Isla de La Cartuja 41092 Sevilla THANK YOU FOR YOUR ATTENTION!