This paper addresses ways in which distributed generation can be used to the advantage of network operators. A distinction is thereby made between "non-controlled generation" and "controlled generation". Both types can contribute to an improved performance of the network, where the opportunities for controlled generation are obviously much bigger. It is shown that non-controlled generation can have a positive impact on losses, on undervoltages and on reliability. Controlled generation can further mitigate fast voltage fluctuations, voltage dips and harmonic distortion.