Storage system manufacturer TESVOLT has unveiled its new TESVOLT Power Storage (TPS) lithium battery storage container. The system employs a newly developed container module which offers highly flexible installation in both indoor and outdoor environments, and also protects the storage unit effectively from external influences. A service life of 30 years and 8,000 charge cycles makes investment in the new battery storage system particularly worthwhile for industrial applications.
"The TESVOLT Power Storage system allows us to ensure a secure power supply for major consumers all the way from the tropics to Alaska," states Daniel Hannemann, Managing Director of TESVOLT. The containers are insulated and air conditioned, enabling them to provide constant environmental conditions in temperatures ranging from -40 to +55 degrees Celsius. As a result, the storage systems no longer need to be installed in closed, air-conditioned rooms, and they can achieve consistently high performance levels even in challenging environments such as factories, barns or the open outdoors.
Thanks to their sturdy design, the containers can be transported in their entirety either by road or sea. Standard ISO container sizes of 20ft, 40ft and 45ft are available. Once at the installation site, all that remains is to connect the unit to a Sunny Central Storage System from SMA Technology AG, which can also be supplied as a container module.
"The TESVOLT Power Storage system is our solution for all commercial and industrial operations where storage systems of 0.5 MW and above are of interest, but for which issues of cost or installation have been a big concern until now. Enormously high power density, guaranteed charge cycles, and a simple, standardised construction make it one of the most cost-effective systems for megawatt applications on the market," states Hannemann. With market prices for peak-load power currently ranging from 80 to 140 euros per kW, and remuneration for supplying operating reserves commanding up to 160 euros per kW, such systems are extremely worthwhile investments and achieve energy payback times of 4 to 6 years in the European market.
What is more, a discharge rate of 1C makes the TPS suitable for both on- and off-grid applications such as primary operating reserves, peak load capping, ramp rate control and load levelling, as well as for use in hybrid systems.
"We use prismatic cells from Samsung SDI which are extremely durable and safe. By combining these with our Active Battery Optimizer, which individually balances the state of charge of each and every cell, we are able to guarantee the high rate of charge cycles." In addition, this Active Battery Optimizer allows the battery modules to be exchanged or expanded, even years later, adds Simon Schandert, Director of Engineering at TESVOLT. "As a result, the service life has a critical impact on the economic viability of all business models."