This candidate thesis contains the possibility of expand the Swedish photovoltaic market through photovoltaic cooperatives and a photovoltaic exchange. In the current situation there is a lot of problems with production of electricity from photovoltaic, that’s why we show some possibilities how to avoid these. To understand the problem with photovoltaic produced electricity we first give you a background. We show how to expand the Swedish photovoltaic market by describing how a photovoltaic cooperative and photovoltaic exchange could work in Sweden. It have been confirmed from our market research that the interest of photovoltaic cooperative and exchange is high. To find out how profitable photovoltaic is in Sweden, have three projections been made. These have been done to show how the price per kWh affect depending the size of the power plant. With the help of these results it can be decided which of the projected plants who is the most profitable for given conditions. The photovoltaic power plant that uses the Swedish grand scheme optimal and has the maximum size is the most profitable today. The thesis has been divided into five sections, background, projections, cooperative, photovoltaic exchange and market research. The thesis is limited to Swedish conditions and is based on information from literature, technical reports and interviews.