University of Twente Student Theses
The effect of battery storage on local residential distribution grid : How can batteries help reducing peak loads on low voltage residential electricity grids
Wagter, W.H. (2023) The effect of battery storage on local residential distribution grid : How can batteries help reducing peak loads on low voltage residential electricity grids.
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| Abstract: | Electrification is an impactful consequence of the goal to reduce carbon emissions. This puts a bigger claim on the electric grid houses are connected to. These new appliances have a higher peak power draw than current situations. Moreover, the new peaks are also highly likely to occur in different houses at the same time. Therefore, the Low Voltage (LV) electricity grid is faced with a big challenge and must be expanded in many places in a short period of time to facilitate the above mentioned part of the energy transition. This study is focussed on the effect of battery storage on LV grids. For a DSO to be able to effectively deploy battery storage, they need to know the potential, suitable location and what possible preconditions for a successfully deployment. In this study two scenarios with different storage types are compared in a simulation to a baseline without storage. One scenario has a number of home batteries, and the other has a single neighbourhood battery. To be able to arrive at representative conclusions archetypical neighbourhoods classes are used and real existing LV grids samples from these different are sampled from these categories used for simulation. The results showed that loads on the grids in different geographic areas are indeed quite different. In neighbourhoods with many detached houses or terraced houses the solar production peak is much higher compared to areas with a higher share of tenements and apartment complexes. This limits the potential peak reduction of the battery storage as the solar peaks are too high for available battery sizes. The results also showed that the deployment of distributed home batteries in 30 percent of the connected houses have a much smaller potential impact on peak reduction than using a single neighbourhood battery with the same combined capacity. This is based on the home batteries being controlled by a simple self consumption optimisation algorithm, which proved to be insufficient for the studied goal. Concluding from this study, home batteries with basic controls have proven to be insufficient for peak reducing on a grid scale. More advanced controls and regulatory requirements are needed for this to start to have a significant effect. Neighbourhood batteries on the other hand can result in a reliable peak power reduction between 10 and 20 percent. However, it is doubted that this reduction is significant enough for the DSO to be able defer, cancel or reduce expansion. Generally, the potential reduction is the most meaningful in areas without the presence of a dominant solar peak. |
| Item Type: | Essay (Master) |
| Clients: | Liander, Arnhem, Netherlands |
| Faculty: | ET: Engineering Technology |
| Subject: | 53 electrotechnology, 56 civil engineering |
| Programme: | Civil Engineering and Management MSc (60026) |
| Link to this item: | https://purl.utwente.nl/essays/96335 |
| Export this item as: | BibTeX EndNote HTML Citation Reference Manager |
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