Stay informed about the latest developments in skid-mounted PV systems, prefabricated photovoltaic containers, containerized energy solutions, and renewable energy innovations across Africa.
An uninterruptible power supply (UPS) or uninterruptible power source is an electrical apparatus that provides emergency power to a load when the input power source or mains power fails.
UPS systems are cheaper upfront. But their batteries wear out faster and aren’t designed for daily use. BESS systems are more expensive initially, but they offer long-term savings through energy arbitrage, grid incentives, and durability (especially with lithium iron phosphate batteries). Which One Should You Choose?
For large power units, dynamic uninterruptible power supplies (DUPS) are sometimes used. A synchronous motor/alternator is connected on the mains via a choke. Energy is stored in a flywheel. When the mains power fails, an eddy-current regulation maintains the power on the load as long as the flywheel's energy is not exhausted.
They use UPS for surge protection and instant switchovers and BESS to run for 8+ hours during blackouts, powered by solar. The company uses BESS to flatten peak loads and reduce utility bills by 25%, while UPS protects conveyor belts from sudden shutdowns. UPS and BESS both play critical roles, but in different ways.
Brazil expects to have 1.2 million solar power generation systems in the year 2024. Solar energy has great potential in Brazil, with the country having one of the highest levels of insolation in the world at 4.25 to 6.5 sun hours/day. As of 2019, Brazil generated nearly 45% of its energy, or 83% of its electricity, from renewable sources.
Today, Brazil's distributed installed capacity has surpassed centralized power stations, accounting for 71% of the total installed capacity. The adoption of the distributed generation method has led to the vigorous development of distributed photovoltaic projects in Brazil.
Solar energy has great potential in Brazil, with the country having one of the highest levels of insolation in the world at 4.25 to 6.5 sun hours/day. As of 2019, Brazil generated nearly 45% of its energy, or 83% of its electricity, from renewable sources. For example, 60% of Brazil's electricity generation came from renewable hydropower.
Grid connection queues in Brazil are offering new opportunities for energy storage and hybrid systems and opening new energy business models. Renewable energy companies are adding solar and batteries to their utility-scale wind power sites to use existing power transmission capacity.
Most of the BESS systems are composed of securely sealed battery packs, which are electronically monitored and replaced once their performance falls below a given threshold. Batteries suffer from cycle ageing, or deterioration caused by charge–discharge cycles.
The system is built of two main blocks. The PCS building block, responsible for the main control of the mobile BESS. The nominal power rating of the PCS block is 225 kVA, with a maximum peak power in the peak shaving mode of 275 kW . The second block is the modular battery pack.
These all-in-one BESS systems can be scaled from utility scale to industrial and commercial applications. The environmental control system (ECS) within the container combines the fire and HVAC systems to maintain a stable environment.
This thesis project, carried out at Northvolt Systems, aims to analyze the existing and readily used communication interfaces for a specific set of mobile BESS applications. The analysis is performed by a literature review of typical mobile BESS applications with the identified corresponding communication interfaces.
