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TURNING UP THE HEAT Getting to grips with new renewable heat technologies

TURNING UP THE HEAT Getting to grips with new renewable heat technologies. HAMPSHIRE AND IoW PLANNING OFFICERS GROUP 28 JUNE 2013. Les Murrell Energy and Environment Manager Rushmoor Borough Council. SO WHY ARE WE HERE?. E nhanced understanding of emerging renewable heat technologies

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TURNING UP THE HEAT Getting to grips with new renewable heat technologies

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  1. TURNING UP THE HEATGetting to grips with new renewable heat technologies HAMPSHIRE AND IoW PLANNING OFFICERS GROUP 28 JUNE 2013 Les Murrell Energy and Environment Manager Rushmoor Borough Council

  2. SO WHY ARE WE HERE? • Enhanced understanding of emerging renewable heat technologies • Typical applications • Drivers for renewable heat and CHP: • RHI, Green Deal and ECO • CRC • CSR • Above inflation energy costs / business competitiveness • Fuel poverty • Future proofing • Shorter payback renewable technologies • Planning issues

  3. THE RENEWABLE HEAT INCENTIVE (RHI) • £860 million fund! • Non-domestic sector scheme launched Nov. 2011 • Supports: • biomass and municipal waste incineration (including CHP) • ground and water source heat pumps • geothermal (including CHP) • solar thermal less than 200 kWth) • biogas combustion (except from landfill gas but including CHP; at capacities of less than 200 kWth) and biomethaneinjection. NOTE: Fossil fuelled CHP is NOT supported! • Tariffs under review due to low uptake • Improved support for GSHP, solar thermal, large biomass • Scheme for households Spring 2014

  4. THE RENEWABLE HEAT INCENTIVE (RHI) • How the RHI works:

  5. THE RENEWABLE HEAT INCENTIVE (RHI) • The current tariffs:

  6. AIR SOURCE HEAT PUMPS • Refrigeration process transfers low grade energy from outside air into high grade energy for heating and HW • Domestic or commercial apps. – inefficient <-5 deg.C • Electricity used < heat produced. • Can be used for air-con. • Domestic cost £6K - £10K (£1.3K RHI grant) – payback for electric heating c.£380pa – no saving for gas.

  7. GROUND SOURCE HEAT PUMPS • Harness heat from ground by pumping water through it. • Heat pump increases temperature for heating or HW.  • The electricity used < the heat produced. • Planning permission for a borehole? • Domestic cost £9K - £17K (£1.3K RHI grant) – payback for electric heating c.£480pa • Not suitable to replace gas CH.

  8. CHP • CHP generates electricity whilst capturing generator heat. • A lorry engine with metal tubing wrapped around it! • Efficiency of CHP plants > 80% at the point of use • CHP fuel can be renewable or fossil • Proven and reliable technology • Needs large heat demand for maximum savings • Micro-CHP available for single dwellings • Minimum 10% saving on energy

  9. BIOMASS • Burning logs, wood chips or wood pellets in stove or biomass boiler. • Can be plumbed into existing central heating • Popular replacement for oil-fired boilers • Planning issues: • Large space requirement • Needs chimney to release gases / particulates > 150kW (Clean Air Act 1993) • Fuel deliveries • Mature technology: • very popular in Nordic countries and Germany • up to 97% efficiency • auto-fuel feed • computer controlled • pellets about 1% inert ash residue

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