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This report presents simulation results on the impact of climate change and urban environment on energy savings for the ReCO2ST demo buildings and installed technologies. It also presents an assessment of nature-based technologies regarding resulting environmental improvements and related costs. It was found that climate change/urban environment has a marked impact on materialised energy savings and resulting environmental conditions in naturally cooled buildings and should be considered in the design of retrofits. Nature based technologies can offer a holistic improvement of internal environment but costs are higher than conventional systems.

Energy efficiency, advanced controls and renewable energy systems for operating industrial, residentialand tertiary sector buildings designed to be Near-Zero Energy are investigated to explore the perfor-mance gap. The analysis involves a comparison of energy dynamic and quasi-dynamic models with datafrom smart monitoring systems, indoor and outdoor environment measurements, power consumptionand production data. Specific issues and conclusions have been drawn as the basis for addressing the per-formance gap between energy efficiency prediction in the design phase and measurements’ evaluationin operational phase.

Building design is undergoing a paradigm shift with the introduction of the IDP. The IDP is an inclusive and iterative design process that requires involvement and collaboration of various professionals from the start of a project. The IDP in contrast to the conventional design process follows through the operational phase of the project with the intention to monitor, measure and verify the project’s in use performance and subsequently assess the implemented sustainable design strategies and energy conservation measures, identify weaknesses and as far as possible improve performance. A variety of actions has to be coordinated before and during the actual implementation of a project’s the measurement and verification. These actions are specified and documented in an M&V Plan. Experience from the Zero-Plus project has revealed that the development of an M&V plan is closely related to the steps and development of the IDP. The present paper identifies this correlation which will support the development of solid M&V plans that in the long-term will benefit the projects' in-use performance monitoring and assessment.

Building design is undergoing a paradigm shift with the introduction of the IDP. The IDP is an inclusive and iterative design process that requires involvement and collaboration of various professionals from the start of a project. The IDP in contrast to the conventional design process follows through the operational phase of the project with the intention to monitor, measure and verify the project’s in use performance and subsequently assess the implemented sustainable design strategies and energy conservation measures, identify weaknesses and as far as possible improve performance. A variety of actions has to be coordinated before and during the actual implementation of a project’s the measurement and verification. These actions are specified and documented in an M&V Plan. Experience from the Zero-Plus project has revealed that the development of an M&V plan is closely related to the steps and development of the IDP. The present paper identifies this correlation which will support the development of solid M&V plans that in the long-term will benefit the projects' in-use performance monitoring and assessment.

Building design is undergoing a paradigm shift with the introduction of the IDP. The IDP is an inclusive and iterative design process that requires involvement and collaboration of various professionals from the start of a project. The IDP in contrast to the conventional design process follows through the operational phase of the project with the intention to monitor, measure and verify the project’s in use performance and subsequently assess the implemented sustainable design strategies and energy conservation measures, identify weaknesses and as far as possible improve performance. A variety of actions has to be coordinated before and during the actual implementation of a project’s the measurement and verification. These actions are specified and documented in an M&V Plan. Experience from the Zero-Plus project has revealed that the development of an M&V plan is closely related to the steps and development of the IDP. The present paper identifies this correlation which will support the development of solid M&V plans that in the long-term will benefit the projects' in-use performance monitoring and assessment.