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Solar Power at Bobygget
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
2016 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

During the autumn of 2014 a project

called Bobygget was initiated. The

purpose of the project is to establish

a future residential area in

Herrljunga, where a sustainable and

environmentally compatible lifestyle

is fundamental. The purpose with this

bachelor thesis was to, in

consultation with Herrljunga

Elektriska, investigate to what extent

Bobygget could be self-sufficient from

solar energy. Through PV systems at

rooftops connected to a shared

battery, a given ratio between

produced energy and consumption in the

area could be acquired. Calculations

and simulations resulted in the

required amount of bought energy for

Bobygget as well as the potential sold

energy to the grid. On account of a

limited budget, this report was based

on three different scenarios with

different economic presumptions.

The economic presumption for each

scenario determined the capacity of

the battery, which had an impact on

the grade of yearly self-sufficiency.

The first scenario resulted in a

battery capacity of 63.2 kWh which

gave a self-sufficiency of 27 %. In

the second scenario the battery had a

capacity of 328 kWh which resulted in

a self-sufficiency of 50 %. Since the

third scenario had an unlimited

budget, the capacity of the battery

was determined by 100 % utilization of

the produced energy. Therefore the

battery acquired a capacity of 58 000

kWh which gave a self-sufficiency of

79 %. Consequently, Bobygget could not

be completely self-sufficient by

installing PV systems at rooftops

regardless of budget and capacity of

the battery. To be able to accomplish

a self-sufficiency of 100 % an

alternative solution is necessary.

Place, publisher, year, edition, pages
2016. , 47 p.
Series
TVE, TVE 16 037 juni
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-295107OAI: oai:DiVA.org:uu-295107DiVA: diva2:932946
External cooperation
Herrljunga Elektriska AB
Educational program
Systems in Technology and Society Programme
Supervisors
Examiners
Available from: 2016-06-07 Created: 2016-06-02 Last updated: 2016-06-07Bibliographically approved

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