Ecoshopping retrofitting methodology considers technical, energy, legal and economic aspects forming a holistic retrofitting solution for commercial buildings, with the aim to reduce primary energy consumption of the target building and increase the share of Renewable Energy Sources. Based on the methodology, a guideline was developed collecting the good practices from EcoShopping project, including the implementation of a pre-retrofit assessment of the building, identification of the most suitable kit of HVAC and Renewable Energy System, lighting and insulation solutions along with a proper Operation and Maintenance control through an Intelligent Automation Unit.

This topic is about the Overall concept of Ecoshopping Methodology for holistic retrofitting in commercial buildings.
This document will introduce the steps for the retrofitting assessment, definition and deployment:
1. Project Setup and Pre-retrofit Survey
2. Energy Auditing and Performance Assessment
3. Identification of Retrofit Options
4. Site Implementation and Testing
5. Validation and Verification
It aims to give an overall concept to guide the user in the different processes and decisions as the assessment of the retrofitting needs, the evaluation of the different retrofitting actuation possibilities, the economic and energetic analysis of each actuation and the decision making of the suitable retrofitting level according to the economic conditions.
This topic, as the first step of a retrofitting project, introduce how to prepare the needed document, information, especially the surveys needed to carry out before making decision and retrofitting solutions.
The “Project Setup and Pre-retrofit Survey” includes four key activities: analysis of legal framework, benchmarking, surveys, analysis of investment and benefits.
Especially for the pre-retrofitting surveys, as part of Ecoshopping methodology, play an important role and affect greatly the filtering of the retrofit options identified. It is essential to collect the needs and requirements of both owners and end-users, and to identify current dissatisfaction or desired issues that could be simultaneously improved without additional costs. The surveys mainly include owner requirement and end user assessment. The template “Appendix 7. Owner questionnaire” created in Ecoshopping as part of the Ecoshopping methodology can be used as a mean to gather and define building owner’s requirements toward the retrofitting scope and the future market positioning of the building. On the other hand, energy consumption in a building depends on the indoor environment conditions (temperature, ventilation, lighting, etc.) and building operation, which are also tightly related to the particular indoor comfort of the occupants and the indoor air quality regional/national regulations. Opinion from the end users towards the current indoor comfort level can be assessed by using the “Appendix 8. Comfort Questionnaire”, with which, parameters should be improved in order to achieve a better indoor environment can also be identified.
Energy audits play an essential role in energy retrofit programmes by identifying areas with energy saving potential and provide the information needed in building performance assessment. This topic will introduce different steps of energy audit and the key elements of a commercial building energy audits/analysis.
This topic focus on how to identify potential retrofit options knowing the needs and efficiencies of the building.
The identification of all the possible options is needed for the best choice of the suitable retrofit option according to the particular conditions. The process for identifying the different retrofitting options has a special consideration in the cases with a staged approach. The key of the staged upgrade approach is to complete improvements to building systems in the order that reflects the influence of one system on another. A simple workflow is introduced in current topic to analyse the retrofit options. Different technologies were introduced.
This topic focus on the steps necessary to complete the implementation of the retrofitting options identified in step 4.
A Gantt Chart example is provided, monitoring and awareness issues are also included as part of the implementation.
This topic is introduced to evaluate if the actuation corresponds to the expected performance and verify the achievement of the desired energy efficiency and comfort level.
General steps to perform the post-retrofitting assessment is introduced.