Energy Storage

The electricity grid is a real bottleneck for energy in the United States, and it’s not only utilities and grid operators who are struggling. Grid congestion also puts pressure on renewable energy project owners and is as much a business problem as it is a technical one, writes Alon Mashkovich, CEO of energy management business software supplier enSights.

Malaysia’s rising power demand, driven by industrial growth and data centers, is exposing grid and capacity constraints, prompting policies like Corporate Renewable Energy Supply Scheme (CRESS) to enable corporate renewable procurement while maintaining system cost recovery. A key factor is the System Access Charge (SAC), whose uncertain future trajectory affects long-term solar PPAs and investment decisions, making scenario-based modelling crucial for assessing project bankability.

The country’s first solar-plus-storage project will be located on a 400 hectare surface near Kébili, a town in the south of Tunisia and one of the main cities in the Nefzaoua region.

Twelve photovoltaic storage systems with capacities of 5 kW or 10 kW were included in the comparison, among them several new products, all of which achieved efficiency class A. A new study – also examining efficiency losses when storing electricity from the grid – highlights the importance of highly efficient battery storage. The researchers also took a closer look at the warranty conditions of the devices.

The Chinese manufacturer said its new three residential battery lines support a depth of discharge of 90% and deliver over 6,000 cycles.

The Chinese electric vehicle maker said the new batteries can charge from 10% to 70% in 5 minutes and from 10% to 97% in 9 minutes. The company also announced a new generation of its Flash Charging Technology.

Researchers reviewed 110 studies on cold thermal energy storage in liquid-air energy storage, finding that cold storage performance has a far greater impact on system efficiency than previously assumed. While phase change materials offer high theoretical efficiency gains, simpler packed-bed sensible heat systems are currently the most mature and cost-effective option, with further experimental validation needed to bridge the gap to large-scale deployment.

Sigenergy has launched a 2.68 kWh balcony storage system with four MPPTs and up to 4 kW of PV input. The scalable LFP solution offers 800 W grid output, 1.2 kW backup power, and expansion up to 18 kWh per tower.

EcoFlow has unveiled the single-phase Ocean 2 all-in-one battery inverter at Key Energy in Rimini. The system features a more compact 5 kWh LFP battery stackable up to 30 kWh and offering 100% depth of discharge, 3.4 kW discharge power, and IP66 protection.

The Iraqi Customs Authority has cut customs duties on solar energy systems from 33% to 5% – covering PV panels, inverters, cables, and lithium batteries – to accelerate solar adoption, following financing support from the Central Bank of Iraq.