Managing Trees for Energy Andrew Clark (Fuel Quality & Compliance Manager) Energy Made Better

Overview of SSE  SSE owns 11.4GW of Electricity Generating Capacity in the UK and Ireland  SSE is the Largest Renewable Energy Generator in the UK  SSE’s Total Capacity (Including Joint Ventures and Associates) Comprises:  4.6GW of gas- and oil-fired capacity.  4,4GW of coal-fired capacity (with biomass co-firing capability).  2,4GW of renewable (hydro, wind, EfW and dedicated biomass) capacity  SSE is Investing Around £4 Billion in New Capacity Between

Slough Heat & Power  Established 1920s  A Subsidiary of SEGRO (Slough Estates plc) Until 2007  Acquired by SSE 2008  Electricity, Steam & Hot Water Networks  Renewable Combined Heat & Power

Renewable Fuels, Saving Carbon  Overall Generating Capacity of 100MWe  35MWe Capacity on Wood Fuel Chips  12MWe Capacity on Waste  Renewable Heat

Two Types of Wood Fuel  Recycled: Clean, Untreated Wood from Pallets, Packaging, Demolition  Biomass: Clean, Virgin Wood from Tree Surgeons, Woodland Harvesting, Sawmills  3,500 Tonnes Each Fuel per Week  300,000 Tonnes of Wood Fuel per Annum  24 / 7 Delivery  Quality is key

Slough Heat and Power – Energy and CHP Facility Diagram key 1. Coal fired plant converted to wood fuel 2. CHP energy recovery plant and fibre fuel 3. Slough Trading Estate secure network 4. Sawmill producing woodchips 5. Wood recycling facility 6. Tree surgery/woodland management 7. Energy crops

Conversion to Wood Fuel  Coal in-feed could not deal with nature or quantity of wood  Converted to wood fuel from 2001  New in-feed system installed 2003  Push floor  Belts with a screen & magnets  Screw dischargers in bunkers

Biomass Portfolio  Over 1,400 tree surgeons  Sawmills  Willow coppice grown by farmers  Local: large proportion within 50 miles  £m revenue for rural workers, hauliers  Helps support woodland management  Wildlife benefits

Local Biomass Strategy +Off Site Storage +Offers Buffer and Fall Back Options +50,000te pa Offsite Small Roundwood Chipping Facility +Standing and Road Side Timber Purchases

National Biomass Strategy +Purchase of Forests +Whole Tree and Small Roundwood Chipping Operations

Extracting Value from Trees +Brash Bale trials +Stump trials

SSE's future development plans Uskmouth (South Wales) Conversion +321MW (3 Units) +April No More Coal Burning +1 Unit to be Modified (Virgin Wood Pellets) +500,000 Tonnes per Annum +Pellets to be Pulverised

Forth Energy +Forth Energy is a Strategic Venture Company Formed by SSE and Forth Ports Limited.SSEForth Ports Limited +4 Biomass Plants (Dundee, Grangemouth, Rosyth and Leith) +£1.7bn Investment +Total 500MW +5,000,000 Te pa Wood Fuels

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