First redT unit connected to UK grid

2 December, 2015

redT energy plc

("redT" or the "Company")

First redT unit connected to UK grid

redT (AIM: RED.L), the energy storage technology company, is pleased to announce that its first manufactured unit is approved for connection to the UK grid and that units will receive the CE mark, enabling EU wide distribution. The 40kWh unit delivered to redT's Wokingham development centre is now grid tied, charging from and discharging into the distribution network.

This marks an important step for redT moving from demonstration of prototype units to installation of independently manufactured products ready for customer use.

This redT storage system has been coupled with solar as a grid connected installation. The system allows the redT development centre to match consumption of power generated from the solar panels installed on its rooftop with its demand, with the aim of saving on electricity purchase costs. Excess power from the panels and the redT system can be fed into the local electricity distribution network operated by Scottish and Southern Energy (SSE) so as to maximise sales revenues. SSE has approved connection of the solar and redT energy storage system to the local network.

redT is currently executing a strategic programme to deliver market seeding products across a series of applications including utility, grid-tied wind, grid-tied solar, off-grid diesel generator and telecommunication towers. Now the first unit has been deployed, the Board expects to begin shipping units to other customers.

Scott McGregor, CEO of redT said,

"The approval of grid connection is a major milestone for redT energy. Progressing a new technology from prototype to commercial deployment in live applications can often present integration difficulties. We are delighted to complete the connection and certification process.

"We are likewise pleased to have demonstrated to our UK and international customers the redT energy storage system can be readily coupled with renewable generation and connected to the grid. We look forward to updating further as we continue to build momentum."

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About redT

redT develops and supplies durable and robust energy storage systems based on proprietary vanadium redox flow technology for on and off-grid applications. The liquid storage medium affords an exceptionally long life of over 10,000 full charge/discharge cycles and a 100% usable depth of discharge. Combined with low maintenance requirements this delivers industry leading levelised cost of storage (LCOS) and total cost of ownership (TCO) results. The modular approach allows the power and energy components of systems to be independently sized to meet customer requirements.

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Until now it has not been possible to directly compare variable renewable energy generation sources with firm diesel or fossil fuel generation. PV + Storage is now reaching 'grid parity' in many countries, a paradigm shift in energy production, which will ultimately enable a distributed energy network optimising conventional and renewable generation. The redT system has applications in remote power, smart grids, power quality, and all aspects of renewable energy management.