Grid Storage in LV Networks – An Appropriate Solution to Avoid Network Limitations in High RES Scenarios

Abstract

Low voltage networks are expected to see massive transformations in the next decades. The aim for a carbon neutral economy asks for high level penetration of renewables, where PV production in LV networks is an important part of the overall solution. The RES high penetration becomes however also a threat for grid operation, through challenges such as keeping voltage level in the accepted band, avoiding grid congestion and reverse power flow or ensuring an acceptable low level of energy losses. The paper analyses specific scenarios and suggests measures to address these limitations, by comparing business as usual operation with more advanced microgrid operation and the use of grid-side storage.

Effect of Proximity, Burden, and Position on the Power Quality Accuracy Performance of Rogowski Coils

“…Finally, but not less important, RES penetration is no longer an issue limited to the medium voltage (MV) portion of the DN. As a matter of fact, the high availability of RES solutions for small customers (such as house-sized photovoltaic panels and micro wind turbines) is increasing the complexity of the grid and of its management [ 10 , 11 , 12 , 13 , 14 ]. Furthermore, with the spreading of energy communities and microgrids, customers are becoming producers (the so-called prosumers), and they demand an active role among the grid players.…”

Integrated Algorithm for Selecting the Location and Control of Energy Storage Units to Improve the Voltage Level in Distribution Grids

“…Distribution grid operators face numerous challenges. One of them is installing renewable energy sources (RES) deep inside the distribution grid, which in recent years has been the cause of problems with failure to meet the required voltage value [1]. Solar panels (which are an example of RES) appear more and more among prosumers as micro-sources.…”