This study proposes an optimized model of a micro-energy network (MEN) that includes electricity and natural gas with integrated solar, wind, energy storage systems (ESSs). The proposed is based on hubs (EHs) it aims to minimize operation costs greenhouse emissions. research motivated by the increasing use renewable energies ESSs for secure supply while reducing environment effects. A general a...

The operation of energy storage systems (ESSs) in power where variable renewable sources (VRESs) and ESSs must contribute to securing the supply, can be considered as an arbitrage against scarcity. value using stored instantly balanced its potential future risk This paper proposes a multi-stage stochastic programming model for microgrids with VRESs, thermal generators that is divided into short...

The increasing amount of both, renewable energy production and electric vehicle usage, puts considerable stress on smart grids, making it necessary to synchronize vehicle charging with energy production, but also allowing to use those vehicles as additional energy storages. In this paper, we combine machine learning and evolutionary algorithms to create near-optimal vehicle charging schedules f...

When planning renewable hybrid energy solutions in buildings, it is important to consider both investment and operating costs. This study develops a novel building optimization model based on the coming 15 min power balance settlement. It utilizes multiple storages, including hot water tank flow lead-acid batteries. We apply plan retrofitting of an office Helsinki residential Tallinn, with phot...

The fast-increasing introduction of renewable energy sources (RESes) leads to some problems in electrical power network due to fluctuating generated power. A power system must be operated with provision of various reserve powers like governor free capacity, load frequency control and spinning reserve. Therefore, the generator’s schedule (unit commitment schedule) should include the consideratio...