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This paper presents a study on combining a grid-because they cannot meet their projected production pattern connected stochastic generator with an energy storage device. due to inaccurate forecasts [4]. On the other hand, severalThe storage device is used to balance the power fluctuations of generators have to run as backup on idle or on reduced power the non-dispatchable generator in order to feed power into the gene to ru n asackuponsidle ondreducedapower network according to an hourly pre-determined constant profile. tbeable to q kompendste pos ed flutuations.The negative effects of inaccurate forecasts are thus reduced by Usually hydro storage and gas-fired power stations are used turning the stochastic generation into a deterministic network for this purpose; running a thermal power plant at reduced infeed. Important parameters for achieving this goal are the power however implies lower efficiency and hence a relatively energy capacity of the energy storage and the error magnitude higher amount of CO2 per MWh, reducing the positive impact of the forecast used to define the infeed profile.. 'A general method for simulations based on a measurement of renewable-based generators In terms of emissions. It would series is presented, together with a method for the simulation thus be favorable to alleviate or even eliminate the fluctuations of forecasts with different forecast errors. The methodology is of the intermittent source before they are transferred to the then applied in a case study to investigate the feasibility Of network. using an storage device for hourly balancing. The emphasis is on Therefore, this paper presents a study on combining a gridthe relation between infeed accuracy, forecast error and energy connected stochastic generator with an ESD, to compensate capacity Of the storage. fluctuations in the network infeed. In contrast to isolated

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