Power box - hybrid energy storage for any energy source
The construction sector is responsible for 50% of global GHG emissions. In fact, diesel generators supply 98% of the electrical power required in construction sites. These generators are usually over-sized in order to cover all power peaks while working at low loads most of the time (<50% of their capacity). Unfortunately, diesel generators have a very poor efficiency at low load levels which causes a waste of tremendous amounts of fuel along with increased emissions. Working at low levels also reduces the service life of the generator and entails high engine-servicing costs. 
xelectrix Power GmbH is an Austrian company specialized in construction equipment with energy-efficient drive technology. Strove by the need for a solution that would combine electric energy storage and grid stabilization and could work in parallel with any kind of energy source (renewable or not), we have developed Power Box: a “plug & play” energy storage system (battery pack and hybrid inverter – patent pending) that can work in parallel with any energy source (alternating AC or direct current DC) including diesel generators, renewables and the grid suiting the needs of construction sites and bigger operations.  With Power Box, diesel generators and the grid always operate at optimal efficiency. During peak energy requirements, Power Box and the generator combine to meet these requirements while during periods of low loads, the power is taken directly from Power Box’s battery storage. 
Through this project, we aim to set the technical and commercial bases of Power Box optimization to then by mid-2021 commercialize it among construction companies who already own diesel generators and energy who need energy storage and stabilization solutions. By the lack of adequate competing solutions on the market along with the growing demand of power supply, we expect to sell at least 3,900 Power Box units in 5 years to generate €119M revenues (ROI 7.86).