Sofiero park : A historic building renovation with optimising photovoltaics according to hourly load profile

• Retrofitting historical buildings was neglected for many years, as common systems could not be used. Now that technology has evolved, retrofitting buildings worth preserving is getting more common and can play a significant role in reaching climate targets by reducing the energy use. In order to produce equally much or more energy as the respective buildings use renewably and on site, the exploitation of photovoltaic systems has come to the fore over the past decades. This study focusses on the energy efficiency retrofit of a 150-year old castle situated in a recreational park, which was parametrically assessed by means of numerical modelling through building performance simulations. In order to achieve economic feasibility of the performed measures life cycle costing was employed. The reduced energy use of Sofiero Castle composing into an hourly load profile is used to optimise a photovoltaic system carried out by parametrical modelling. By implementing a second photovoltaic system, optimised for the highest annual electricity yield, an energy surplus was achieved. On an annual basis the castle reaches a net zero energy performance with the exploration of on-site renewable energy production. The optimisation has shown, that financial feasibility can not be reduced to the highest energy yield and photovoltaic optimisations aiming for a high self-sufficiency should carry out a parametric optimisation.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Samhällsbyggnadsteknik -- Arkitekturteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Civil Engineering -- Architectural Engineering (hsv//eng)

TEKNIK OCH TEKNOLOGIER  -- Samhällsbyggnadsteknik -- Husbyggnad (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Civil Engineering -- Building Technologies (hsv//eng)

Nyckelord

Building performance simulation

Historic buildings

Life-cycle-cost

Moisture safety

Net zero energy buildings

Parametric photovoltaic optimization

Publikations- och innehållstyp

kon (ämneskategori)

ref (ämneskategori)