Inspiration Rosendal is Uppsala’s greenest housing project to date. Consulting with Energy Machines™, ENEO Solutions has developed a cost-effective geothermal energy solution that makes it one of Sweden’s most energy-efficient apartment buildings. With integrated energy solutions and EnergyMachines™, energy consumption is estimated to be only 25 kWh per square meter per year, providing Rosendal Fastigheter’s tenants with sustainable living.
Inspiration Rosendal — 344 tenant-owned apartments with access to a running track and a streetball court on the roof — epitomizes smart floor plans, design and sustainability. The property caters to residents who consider a sustainable lifestyle absolutely necessary, and see an efficient energy solution as a main requirement. Eneo Solutions will build, finance and commission the geothermal and solar power installations.
We faced a challenge with this building as it is already very energy efficient, while there is also a periodic demand for high heating outputs. Because we needed a solution that was more efficient than traditional property heat pumps, we chose to take a closer look at EnergyMachines™Project Manager, Mikael Ronge
Waste heat boosts sustainability concept
Achieving the property owner’s goals required an energy concept delivering geothermal energy with with annual COP of at least 4.5 for heating, cooling and domestic hot water. EnergyMachines™’ solution based on Energy Machines met the tough conditions and output provision for the entire property.
In addition to the energy covered through the bore hole in the ground, the property’s ICA store will also play an important role.
“Waste heat from the store’s chillers will be used in the system to make it even more efficient for the property as a whole, while ICA enjoys a strong sustainability concept and reduced in-store operating costs.”
EnergyMachines™ experience enables best-in-class energy calculations
Geothermal plant installation will be completed during the autumn of 2016. ENEO Solutions has signed a 25-year contract with the property owner, committing to deliver specific energy, power and efficiency. This in turn requires realistic energy calculations.
“This is where EnergyMachines™ experience has provided excellent assistance. Being able to discuss the risks and realistic expectations with them was extremely valuable. They have a great fund of experience from projects with similar conditions,” says Mikael Ronge.
EnergyMachines™ sees the installation as an interesting example of an optimal energy efficiency improvement of a new production.
“Above all, the project shows that there are good opportunities for replacing district heating with more eco-friendly and reliable energy solutions, even new apartment buildings that have very low energy consumption right from the start,” says Kenneth Andersson, former CEO at Energy Machines™.
By August 2014 the project had already been designated GreenBuilding of the month by the North American journal GreenSource Construction. During the first year, the plant will supply PEAB – which is building the property – with building heating. This maximizes the environmental benefit.
“Eneo’s geothermal energy solution suits Inspiration Rosendal perfectly. The model provides the tenant owner association with eco-friendly energy at a predictable price that is also lower than the alternatives,” says Henrik Svanqvist, CEO at Rosendal Fastigheter.