Excursion 1: Energy Design

Excursion 1: Energy Design
Lysgården – Heimdal High School – Asko Tiller

November 8, 2019
Bus leaves from Clarion Hotel Brattøra at 09:00 and returns at 12:00



Lysgaarden exterior illustration

Lysgården is a new office building that employs smart technologies for enhanced comfort and optimized energy performance.

lysgaarden interior illustration

Developers: Kjeldsberg / Veidekke
Contractor: Veidekke Entreprenør
Architect: HUS arkitekter
Lysgården employs a new type of smart technology developed by Siemens. The building contains no manual light switches, but light and temperature can be controlled by the users' smartphones. The technology is called Mindsphere, and can monitor weather, energy, and mobility. The Mindsphere system knows how may employees are present in the building at any time, keeps track of visitors, and can adjust the indoor climate and energy use accordingly.
The building utilizes daylight for comfort and energy savings, and the windows have a new type of shading system called Microshades.
The total energy use of the building has been calculated to around 40 kWh per square metres and year, approximately 35% of the current building code. Lysgården is certified in accordance to the BREEAM Excellent environmental standard.


Heimdal vgs

Heimdal High School and Sports Arena

Heimdal High School exterior

Heimdal high school and sports arena was opened in 2018 and was constructed as a Zero Emission Building (www.zeb.no)

Heimdal High School interior

Developer and owner: Trøndelag Fylkeskommune
Contractor: Skanska Norway
Architect and design management: Rambøll/KHR
The project encompasses teaching facilities for approximately 1200 students with an area of approximately 22 000 m2, a parking basement, a new sports arena.
The school building’s total energy need is projected to be 31 kWh/(m2yr), which is more than 70% lower than the requirement in the building code. The energy is supplied by a photovoltaic system, a ground source heat pump, and a biogas plant. Surplus energy is delivered to the near-by swimming hall.
2,000 m2 of the photovoltaic panels are installed on the roof, making solar energy a significant contributor to the overall energy supply. 21 geo-wells have been established to provide heating and cooling. A combined heat and power system (CHP) based on biogas is also installed on the site. The ventilation systems is designed to be demand controlled with low pressure drops, and consists of 54 de-centralized units with high heat recovery. The school also has electrochromic glazing in some areas, the first of its kind in Norway.



Asko Tiller

Asko exterior

ASKO is Norway’s largest grocery wholesaler and a part of NorgesGruppen. Their distribution centre in Trondheim includes roof mounted Photovoltaics for renewable energy generation and facilities for production of hydrogen as fuel for their trucks.


Owner: ASKO Norway
The photovoltaic panels are mounted on the roof of the buildings, with a total installed power of 1406 kWp, covering an area of 9500 m2. The system consists of 5306 panels from IBC Solar, and 27 inverters from Sunglow. The yearly electricity generation is about 0,9 GWh.
The hydrogen electrolyser is delivered by NEL and has a production capacity of 320 kg per day. The system has a total storage capacity of 400 kg, and it encompasses 3 dispensers; One for passenger cars @ 700 bar, one for trucks @ 350 bar, and one for forklifts @ 350 bar.


RSB registration

Time and place RSB

Time & place
1st Nordic ZEB+
6 - 7 November 2019
(Post-conference Excursions 8 November)
Clarion Hotel Trondheim
Brattørkaia 1, 7010 Trondheim, Norway
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