Transcript Lecale DSU
The Institute of Healthcare Engineering and Estate Management Alternatives to Grid Connection: Energy Storage: David Surplus Chairman, B9 Energy Group Lecale DSU Build-up DDFFRE 11kV Network (3-phase) Lecale DSU “Lecale” Aggregated DSU for 11kV circuits 33kV sub-station (Community Sub-station) Farm scale AD NB: Ammonia can power... • Tractors • Fishing boats • Ferries • Standby gen-sets upsold as... • Peak lopping gen-sets ICAES (N I Energy Storage Demonstration Park) 250kW wind turbines Solar PV Anaerobic Digestion 2nd life traction battery charging Ammonia production 300 houses + EVs as a captive customer base “Seagen” Tidal test site • 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 Compression is hot business “Isothermal Compressed Air Energy Storage” Stores heat as well as compressed air First-Generation Product Shipping in Q1-2015 Breakthrough Price and Service Life Power Unit • • • • 500 kW modules 70% round-trip efficiency 20+ year lifetime Selling price ≈ $1000 per kW 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 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