Soeby from an energy system perspective

Soeby from an energy system perspective

Figure 1 shows Soeby from an energy system perspective. Reading from left to right, are first the industrial energy converting units, wind- and photovoltaic farms, and CHPs as well as an interconnection. These four energy supplying units are not limited to Soeby but supplies electricity to all of Aeroe and district heat to specific areas see Figure 2. In the left-hand side is also showed oil which is used for individual boilers in the heating sector, because Soeby does not have CHP or are within a distance for district heat from the other CHP in Aeroe.

The electricity is supplied from the high voltage main grid to the lower voltage distribution grid by the transformer. The transformer is simplified compared to the actual grid, as it has both the electricity entering from the main grid to Soeby but also the electricity generated from units within Soeby e.g., e-ferry, EVs or PVs. EVs are although not yet that common in Soeby but is relevant for scenarios illustrating the future energy system of Soeby. Which means that the transformer can be compared to a distribution unit for all of the electricity flow, entering and existing Soeby as well as controlling the internal electricity flow within Soeby. This is, of course, a rough assumption, as it does not consider losses nor the potential limitation by a transmission lines capacity.

In the right-hand side is the energy sectors, transport for now only the e-ferry and EVs, at some point could electrical busses also be implemented. The electricity sector and the heating sector where all the loads are aggregated separately. Both the transport sector and the electricity sector do not cause any further challenge when treating the data, compared to the heating sector. The heating sector is all individual heating but as the heating sector is under the conversion to fossil-free units, meaning that all the boilers are being phased out and substituted with other heating units. For this master thesis is all of the boilers substituted with heat pumps (HP) as it follows the vision plan for the municipality of Aeroe. The heating sector is then completely electrified and can enter demand response programs, which will be shown in later scenarios.

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Figure 2: A map showing the industrial power unit on Aeroe, from wind turbines red are existing and green under construction. The red areas are the areas the boundaries for the district heating plans.  https://drift.kortinfo.net/Map.aspx?Site=Aeroe&Page=Vedvarende+energi