Alternatives to Grid Connection: Energy Storage: David Surplus Chairman, B9 Energy Group The Institute of Healthcare Engineering and Estate Management

Lecale DSU Build-up DDFFRE

11kV Network (3-phase)

Lecale DSU 33kV sub-station (Community Sub-station) Farm scale AD ICAES (N I Energy Storage Demonstration Park) “Lecale” Aggregated DSU for 11kV circuits Aim to be self-sufficient in electricity Aim to have cheaper, greener and more secure power supplies More than 70 x rural 33kV sub-stations in NI 250kW wind turbines Solar PV Anaerobic Digestion 2 nd life traction battery charging Ammonia production 300 houses + EVs as a captive customer base “Seagen” Tidal test site NB: Ammonia can power... Tractors Fishing boats Ferries Standby gen-sets upsold as... Peak lopping gen-sets

Compression is hot business

“Isothermal Compressed Air Energy Storage” Stores heat as well as compressed air

Power Unit 500 kW modules 70% round-trip efficiency 20+ year lifetime Selling price ≈ $1000 per kW First-Generation Product Shipping in Q Breakthrough Price and Service Life Storage Unit 1 MWh modules Proprietary filament-wound tanks Shipping container form factor ASME certified Selling price ≈ $200 per kWh LightSail Energy Confidential

Small wind planning applications

Offshore windfarm

Microgrid revenue streams... Arbitrage – Buy at £20 to £30 / MWhr Sell at £80 to £250 / MWhr “Load on Demand” services to avoid external curtailment (30% of wind strike price?) Direct sales on long term fixed price (+RPI) basis Consideration for avoided cost of grid upgrade Ancillary services:Reactive power management Voltage regulation Possible provision of inertia Capacity market payments

Other microgrid benefits... Additional microgrid revenues allow voluntary reduction of ROC revenues on single generator projects – easing price rise pressure Security of supply to load customers is improved Autonomous operation possible - to ride through central system blackouts if necessary

Internet Wireless Connection AC DC Ethernet Home scale Microgrid

Industrial scale microgrid

Thank you