1. ©2014 Storelectric Ltd Making Renewable Energy Profitable and Traditional Energy Efficient Storelectric Ltd Compressed Air Energy Storage

2. ©2014 Storelectric Ltd The Renewable Energy Crisis Renewables 1. Intermittency: Renewables generate all the energy we need when we don't need it, and not when we do 2. Government subsidies: Direct Indirect are not working due to:

3. ©2014 Storelectric Ltd The Storelectric Solution Grid Scale Energy Storage Using Compressed Air Energy Storage (CAES)

4. ©2014 Storelectric Ltd What CAES Is What it is Take in surplus electricity Use it to pump compressed air into a salt cavern When demand exceeds supply, regenerate electricity What it does Store gigawatt hours per installation Match supply with demand The only technology that can, grid scale, today or soon Proven and working reliably since 1978 But only 42-50% efficient

5. ©2014 Storelectric Ltd Where? Salt basins and offshore wind farms Orange and yellow: salt basins Blue: offshore wind farms Both current and planned Information from: ©2014 Storelectric Ltd

6. What We Have 3 patents pending using existing, proven technologies to increase efficiency to 70-85% – and the threshold for viability is around 60%; 5 more patents written, for even greater efficiency; 2 locations in the North West with salt caverns and local support; 1-3GWh storage per installation, generating min. 250-500MW; Outstanding expertise within our team; A market for generating min. 27GW of peak (i.e. premium rate) electricity and storing 2.5TWh in the UK alone; Ability to replicate throughout the country and world; A very strong business case based on conservative figures, with strong profitability from a single installation.

7. ©2014 Storelectric Ltd Cost and Valuation Each installation equivalent to ½ capacity of Dinorwig & Ffestiniog Pumped Hydro ~1/10 cost of Dinorwig alone First Hydro (Dinorwig and Ffestiniog) profits £170m p.a. First Hydro worth £3.5 – 5 bn (current)

8. ©2014 Storelectric Ltd Investment Required We are seeking UK and (future) EU public funding also StageInvest- ment Business Value Detailed design Full designs and approvals Assembled consortium £1.45m£51.5m Pilot plant 25-40 MW £28m£200m Upgrade to Full Installation 500 MW £200-290mUpwards of £1.66bn