The system has been completely redesigned both internally and externally leaving a newly developed battery cell as the centrepiece.
LG Chem now offers low-voltage variants (48V) and for the first time high-voltage variations (400V) in order to meet energy requirements of photovoltaic systems users in Australia and New Zealand. Available from the third quarter of 2016, the new RESU models come with the capacities to generate from 3.3 to 9.8 kilowatt hours (kWh) in the low-voltage and 7 to 9.8 kWh in the high-voltage variation. With a battery from the RESU series, users can save on energy costs by utilising solar generated power in the evenings.
“We are delighted to launch the new RESU series in the ANZ market,” said Changhwan Choi Manager for Australian Business Development. “There is a massive sustainability potential that is yet to be unlocked if Australia wants to be 100 percent powered by renewable energy. With the end of feed-in-tariffs at our doorstep our new RESU series range offers an efficient system to meet every need.”
Flexible energy storage
The new storage series includes two high-voltage battery systems, RESU7H and RESU10H, along with three low-voltage battery systems such as the RESU3.3, RESU6.5 and RESU10. The new high-voltage models provide a variety of inverters that consumers can select in order to convert solar DC into usable AC. The move into high-voltage systems is driven by the trend of developing new inverters in high-voltage area across LG Chem’s partners. Customers now have the advantage of being offered new high-voltage battery systems, which enables numerous additional combinations of home storage and inverter, with which they can leverage the full potential of their photovoltaic system.
“The modular design of the new RESU models brings heightened flexibility” said Choi. “If a user chooses to expand its photovoltaic system, the capacity of the storage system can also be adjusted accordingly”.
"For the first time, the new RESU series covers a complete range of inverter concepts in the market,” said Choi. “Whether high or low-voltage, single or three phase, the new product line-up opens up the possibilities to create an optimised system for each users’ individual energy consumption needs.
With the expansion kit RESU Plus, it is possible to combine two RESUs within the low-voltage class together. The range of capacity thus moves in the low-voltage range from 3.3 to 19.6 kWh. All models are available in silver and champagne gold.
State of the art due to unique production method
With small dimensions and a low weight, the RESU 6.4 EX model has the highest energy density currently available on the ESS market. LG Chem has increased the compactness once more through its new residential storage products. The model RESU 6.5, for example, falls four centimetres flatter than the comparable RESU 6.4 EX and weighs in at eight kilograms less than the current device. The new design is made possible by a newly developed battery cell that is being produced with Lamination and Stacking process. Currently, only LG Chem is able to apply this method of manufacturing in mass production. With this production method, the new battery cell can be produced with lower costs compared to the previous one which affects the end-price for the customers.
Also new is the IP55-certified, waterproof casing, making the models suitable to be installed and configured outside the house, for those who don’t have the extra room for the storage system.
The launch of the new RESU series in the Australian market comes after strong momentum in Germany where the LG Chem RESU series won the ESS award 2016 at Intersolar Europe, the world’s leading exhibition for the solar industry, for its innovation and design.
About LG Chem
LG Chem, Ltd. is Korea’s largest diversified chemical company which operates three main business units: Petrochemicals, IT & Electronic Materials and Energy Solution. The chemical business manufactures a wide range of products, from petrochemical goods to high-value added plastics. It also extends its chemical expertise into high-tech areas such as electronic materials and rechargeable batteries field. Based on the many years of experience in the development and production of batteries, LG Chem is one of the world's leaders in energy storage systems. As such, the company is a primary supplier for the mobile and automotive industry around the world. Entering the business of ESS in 2010, LG Chem has constantly developed and supplied innovative solutions for the ESS market segments such as Grid, Residential and UPS. Throughout multiple production facilities and an extensive distribution network globally, LG Chem has become a global leading company.