100% renewable energy system in Japan: Smoothening and ancillary services

Abstract

In the aftermath of the Paris Agreements, many countries around the globe have pledged to reduce the amount of greenhouse gas emissions being released into the atmosphere. To do so, it is important that the amount of renewable energy in the electricity grid increases, though there are worries of the capacity of the grid to cope with intermittent energy sources. To assess the feasibility of a 100% renewable energy system in Japan, the authors conducted an hourly simulation of future electricity production based on wind, solar and tidal data in Japan. The system was shown to be stable, and the authors calculated the required capacity of electrical batteries that would be necessary to balance such a system.

Parametric optimization of long-term multi-area heat and power production with power storage

“…The models are applicable to compare flexibility solutions for extension of energy systems by storage units and power exchange capacity. Different approaches studied benefits of heat and power storages [38][39][40][41][42].…”

“…Here we add heat storage to both decomposition and integrated models. Based on formulation (33)- (39) and the iterative process (Figure 7), the decomposition method converges to a sub-optimal solution close to the optimum. The details of the verification are presented in Paper 4.…”

“…Figure 14 shows how the solution of the decomposition model improves in each iteration in comparison with integrated optimal solution displayed as a constant line. Each iteration of the decomposition model is shown as two points: the solution after the network model (28)-(31) and after the local multi-period models (33)- (39). The improvement in the first iteration from power transmission model to multi-period local model is higher than during other iterations.…”

Optimal Design of a Stand-Alone Residential Hybrid Microgrid System for Enhancing Renewable Energy Deployment in Japan

“…The energy self-sufficiency rate indicates the proportion of primary energy required for daily life and economic activities that can be secured in the country [2]. Japan's electric power industry faces a wide range of challenges, including the reliance on imports of fossil fuels through the immediate nuclear power phase-out and also further focusing on reducing and decarbonizing its energy system [3,4]. Initiatives are underway to decentralize the power sector in Japan from the centralized fossil fuel-based systems to distributed ones.…”

Research trend in renewable energy resource: a detail bibliometric study

“…To this end, an hourly simulation of future electricity production based on wind, solar and tidal data was carried out. The system proved to be stable and the required capacity of the electric batteries needed to balance the system was also calculated [6]. On the other hand, a major impediment to the development of renewable energies is the variation of the generation parameters due to changes in climatic conditions such as solar radiation and winds, for which reason the energy generated must be stored for use at times when the energy is not sufficient to cover demand.…”