Follow Energy


Date: Tuesday, February 12 2019
Time: 10:00 h – 11:00 h
Location: Energy Barn (EnTranCe), Zernikelaan 17, 9747 AA Groningen

During this Energy Lecture we will discuss the Solar Home Systems (SHS); their impact, advantages, disadvantages and operation. How can SHS help with the electrification of rural areas in Sunbelt countries and how does the implementation actually go? Professor Hans Holtorp of Oldenburg University Germany will take you through the motions today.

A Solar Home System is a stand-alone photovoltaic system supplying electricity in the range of 100Wh/d. This is suitable to supply basic electricity services such as illumination, bi-directional (cell-phone) and mono-directional (radio, TV) communication. A Solar home system consists of a solar module (appr. 50Wp , 1/2m²) connected to a charge controller, and a battery. It operates DC appliances.

This technology offers significant advantages especially for the power supply of dispersed remote households which are not connected to the electricity grid. It can be set up individually for the electrical equipment to be operated.
In contrast larger photovoltaic systems (mini-centrals) are used to replace diesel generators within mini grids. Connection to the utility grid is very often quite costly and economically not viable.

This guest lecture will give a general overview over the technology and the application of Solar Home Systems.

It is defined as an Energy Learning Activity for students of the Hanze UAS and the University of Groningen. Students are invited to attend as many Energy Learning Activities as they want, at all stages of their education.
Energy Learning Activities are part of the Energy Academy Europe Certificate. If students follow 10 Energy Learning Activities and also complete 30 ECTS in energy courses at Hanze UAS or the University of Groningen, they are eligible for obtaining the EAE Certificate.

Website: New Energy Coalition

Short biography Hans Holtorf
Hans Holtorf lectures in the Postgraduate Programme Renewable Energy ( at Carl von Ossietzky University Oldenburg. His main lecturing topics are PV systems and Hydro- and Marine Power. In addition, the module Renewable Energy (RE) Project consisting of the 10 day RE focussed excursion & the RE Case Study as well as multiple cross sectional tasks belong to his job characteristics. Hans originally is a mechanical engineer. After his PPRE studies in 1988/1989 he was lucky to get employed at the University in Oldenburg where he dealt with the technical part of miscellaneous RE projects. For 15 years his main focus has been PPRE. From 2010 to 2016 he did his PhD on evaluating the success of Solar Home Systems at Murdoch University in Perth, Western Australia.