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The coordination between system operators is a key element for the decarbonization of the power system. Over the past few years, many EU-funded research projects have addressed the challenges of Transmission System Operators (TSO) and Distribution System Operators (DSO) coordination by implementing different data exchange architectures. This paper presents a review of the ICT architectures implemented for the main coordination schemes demonstrated in such projects. The main used technologies are analyzed, considering the type of data exchanged and the communication link. Finally, the paper presents the different gaps and challenges on TSO-DSO coordination related to ICT architectures that must still be faced, paying especial attention to the expected contribution of the EU-funded OneNet project on this topic. IEEE CoordiNet H2020

There are two important aspects to take into account while analysing fiscal policy effects on economic growth. First, it should be made clear whether Keynesian short-run or classical long-run effects are the object of interest. Second, the relations between different fiscal and macroeconomic variables should be identified ñ all possible simultaneous changes in other fiscal and macroeconomic indicators should be taken account of while analysing the effect of any fiscal policy decision on economic growth. As demonstrated in this article, Keynesian principles do not seem to hold as fiscal policy cannot have any remarkable impact on economy in a short run. But it is confirmed that in the long run, expansionary fiscal policies are not beneficial to the economy generally. For a government it is essential to recognise that changes in different revenue and expenditure categories may have the same impact on budget balance and on total government revenue and expenditure but they have different effects on economic growth in the long run. For example, fiscal policy decisions have different effects depending on whether to save increased revenue, to spend it for current expenditure or to use it for public investment.