Optimal operation of self-consumption solar + storage battery, TMEIC energy management system
Create a supply and demand plan to support imbalance control and power trading

Rooftop solar power conditioner with storage battery built by TMEIC
(Source: Nikkei BP)
Toshiba Mitsubishi Electric Industrial Systems (TMEIC) has developed an energy management system that optimally operates self-consumption solar power generation with a storage battery, and will provide it from March. Announced on March 14th.
Due to soaring electricity costs, the number of business establishments with rooftop solar power and storage batteries to increase the self-consumption rate is increasing rapidly. However, in order to minimize the cost of purchased power while increasing the self-consumption rate of photovoltaic power generation, advanced control know-how such as highly accurate supply and demand forecasting and trading with the power market is required.
TMEIC has a long track record as a major power conditioner (PCS) manufacturer for both solar power generation and storage battery systems, and has provided cloud-based remote monitoring services. This time, we have developed these cloud-based services into power supply and demand management and operation, including the operation of storage batteries.
The main functions are (1) a function to evaluate the solar power generation plan and operation status, (2) a function to support the optimal operation of electric power, and (3) a function to aggregate power and operation information of TMEIC PCS. be three.
The solar power generation plan and operation status evaluation function predicts the amount of power generated based on the power generation performance and site operation performance of each power plant, and analyzes the factors behind the decrease in power generation to determine the power generation plan. and operational status.
The "power optimum operation support function" predicts power supply and demand, creates a supply and demand plan, and performs imbalance control according to the supply and demand adjustment, based on the cooperation between the solar power generation and storage battery systems. This will support trading with the electricity market.
The TMEIC PCS power and operation information aggregation function collects power plant trouble information online in addition to TMEIC PCS operation evaluation data to quickly understand failure conditions and support recovery. This will improve the operating rate of the power plant.
The company plans to further expand the functions of its energy management service in the future. For example, they are considering a function to provide predictive and preventive maintenance data regarding power system abnormalities and equipment failures, which can be expected to shorten the recovery time of power generation facilities in the event of system abnormalities.
Naomasa Sawada, managing executive officer of the company, general manager of the third industrial system division, said that energy management services will become one of the most important systems in expanding the use of renewable energy in the future. We believe that the need for optimization of power operation will increase.

