Demonstration at European Level of Innovative and Replicable Effective Solutions for Very Low Energy New Buildings
DIRECTION aimed at demonstrating how the use of very innovative and cost-effective energy efficiency technologies can lead to the achievement of very low energy new buildings. This aim along with the effective adoption of low energy buildings was achieved by switching to a model whereby energy efficiency provides value to the market and represents an attractive asset across the whole of the value chain. Two new buildings were used as pilots in DIRECTION - NuOffice in Munich (Germany) and CARTIF III building in Valladolid (Spain). Each of them deployed a set of very innovative measures, constructive elements for energy optimization, high efficient equipment and advanced energy management.
The innocative interventions implemented in the two DIRECTION pilot buildings enhanced the overall energy efficiency of the building in order to achieve consumption (primary energy) lower than 60 kWh/m2/yr.
NuOffice in Munich:
- Solar energy & electric mobility with 284 solar panels on the roof generating electricity up to 80,000 kilowatthours per year
- Pleasant indoor climate with an air exchange rate of 1,2 in the offices High tech insulation with low primary energy use
- Highly thermally insulated outer walls meeting the requirements of the EU green building labels
- Sound construction materials – regionally sourced and LEED compliant
- Optimized light and efficiency incorporating triple glazing and intelligent venetian blinds
- Concrete core activation to maintain constant temperatures and aid heat recovery
- Weather forecast control predicting outside temperature and sunlight from 3-day and 8-hour forecast
- Geothermal energy from the groundwater to reduce primary energy consumption
CARTIF III building in Valladolid:
- 45 kWp Photovoltaic plant allowing a contribution of 15 kWh/m2yr
- Envelope Concept: glass wall and louvers blinds to minimize thermal energy and light electrical demand
- Building Design: glass walls in the southeast and southwest façades making it possible to reduce heating and cooling loads due to a very important solar gain
- Integrated Renewable Polygeneration facility using high efficiency geothermal and biomass integrated systems
- Advanced Building Management System that optimizes energy uses and electricity consumption
- High Efficiency Systems: lighting, pumps or HVAC equipment (geothermal heat pump and the industrial areas HVAC system fans)
- Free-cooling system for the entire building allowing a considerable reduction in cooling requirements, especially for the industrial zones
The DIRECTION Best Practices Book presents 19 best practices based on DIRECTION's experience during the design phase of the Black Monolith in Bolzano as well as the on-site activity at the demo buildings Cartif III in Valladolid and Nu-Office in Munich. They summarize the key findings and recommendations the project makes to the scientific and business community involved in energy efficient projects.