Hybrid systems play a key role in municipalities that incorporate remote areas not connected to the electricity grid. In these areas hybrid systems powering micro grids may be more viable than the extension of the national electricity grid. To cope with such problems an off-grid hybrid system solution is designed for a rural village in Africa region consisting of 200 homes.
The hybrid system consisted of a total capacity of 89kW wind turbine, 222kWp ground-mounted PV system, a 1430kWh battery bank to provide reserve electricity and a 37kW capacity diesel generator. The system is designed to carry the load of houses, stores and hospital. This found optimum solution for the integrated energy case strongly reduces LCoE upto 45% in comparison to the reference system which only have diesel generator as a prime source of energy.
Photovoltaics (PV) is becoming the cheapest form of electricity production in many European countries with time. It has already reached a cost level that makes it competitive in several market segments in several European countries.
A solar system for small to medium sized house can reduce their electricity costs by powering their daytime electricity consumption from solar power. A 3.6kW system with a storage capcity 2.6kWh is designed for a small building in Europe (Berlin) and ensuring the best return on investment for every Euro spent. This found optimum capacities of PV and storage system strongly reduces LCoE upto 5% in comparison to the reference system which only have Power grid as a prime source of energy.
The case study is on a manufacturing facility connected to a grid in a city in Latin America. The three main loads considered are from the processing plant, waste treatment plant and distribution center. The combined average load for the whole manufacturing facility is estimated to 1400 kW.
The showcase evaluates solutions which include only PV and PV plus storage in combination with electricity from the grid. The aim is to enable peak shaving, investigating which solutions result in low LCOE and high ROI. Addition of only PV system results in reduction of LCoE to 8% and a PV plus storage system results in reduction of LCoE to 9%. The results from this case study would be more appealing if a feed-in tariff scheme exists.
The linking of electricity and heating sector through infrastructure and storable energy carriers is understood as sector coupling. It reflects a profound change in energy systems. The motivation is to maximize decarbonization with renewable energy sources in order to accomplish climate protection goals.
The given case study investigates the energy supply system of a small apartment building in Berlin with an annual electricity consumption of 135 MWh that also provides heating, hot water, and cooling. In the use case, the electrical load profile for the residential scenario with a peak load of 70 kW is assumed. The chosen scenario framework for the evaluation of the most suitable microgrid dimensions provides a trade-off between the aim of being applicable to a large range of potential customers and being as precise and consistent as possible. The optimum solution for the integrated energy case strongly reduces LCoE upto 37% for electricity, 55% for heating and 29% for cooling.
The resulting system dimensions are suitable to give the first impression for potential microgrid operators if a certain investment is rewarded with a gratifying payback time.
The analysis on the use cases listed above have been carried out through energenious' powerful system design framework, called MicrogridCreator.
If you are interested to get a feeling of how the tool can perform on different scenarios, you can customize the selected use case with the form below.