It can also improve agricultural productivity (e.g. through irrigation), fisheries and fish farming, and enable the processing of agricultural and fish products (e.g. grinding, milling). Moreover, it may create new trading opportunities, for instance for perishable produce (by providing refrigeration). Evaluations of the impact of electrification show that the provision of lighting and power can unleash new productive activities or extend the length of the productive day. Many of these activities are undertaken by women, thereby increasing their chances for income generation and economic empowerment (Lallement, 2008).