Daniel Galloway

Energy Now Presentation
Developing small-scale AD

Transcript

1. Developing small-scale AD Daniel Galloway RADA Renewable Energy Officer Reaseheath College
2. Developing Small Scale AD Daniel Galloway Reaseheath College, Enterprise Delivery Hub
3. 1. Simplified design 2. CAD Plants 3. New build dairy units 4. Bio-methane upgrade – Grid injection – Transport fuel 5. Surplus heat 6. Development of industry management knowledge Development Potential Risks; • Shale gas • A large incident
4. Development Potential Size of plant (t/annum) Number of plants 0 100,000 0 1,000 20,000
5. What is AD equivalent to? AD Plant Size Electricity (kWh/y) Heat (kWh/y) Solar PV Eq (kW) AD 50 kW 260610 312732 275 AD 100 kW 595680 443037 550 AD 250 kW 1582275 893520 1500
6. Simplified Design • Low cost solutions – Storage requirements for NVZ’s – Best practice manure management – RASE competition + plug flow digesters • Main operational issues – Electrical or mechanical
7. New Build Dairy Units 1. You cannot make biogas out of water 2. Storing water costs money May not be financially feasible – however you can make your farm AD ready • Layout of farm and storage systems • Separation of wash down water and slurry system
8. Co-operative AD Plants • Economies of scale • Heat losses • Decreased financial risk • Increased solids input • Reaseheath Solids feed over 100 % CHP output • Homeleaze Farm 350 kWe AD plant • Poultry manure, pig slurry + energy crop
9. Bio-methane upgrade – Grid Injection & Transport Fuel 1. Legislation to become more favourable - gas quality 2. Cost of technology expected to rapidly fall 3. Potential for gas collection from areas of high livestock density • Swedish model • Increases accessibility of AD
10. Surplus Heat • Typically biogas burnt in a CHP will give twice as many units of heat as electricity – What can I do with that heat ? • Horticulture – Pearson’s and Guy and Wright tomato growers • Other uses? – Tri-generation technologies
11. Management of Your AD Plant • Growth in the number of plants will lead to expansion of industry knowledge – Demonstration plants – Reaseheath College, Cockle Park – Help to increase efficiency and profits – ADBA guides “You build an AD plant in one year, but you operate it for 25 years” Dr Les Gornall, Projen
12. Daniel Galloway Reaseheath College, Enterprise Delivery Hub Danielg@reaseheath.ac.uk AD Plant Tours: 6th March, 4th April, 9th May
13. Energy Now Expo Conference 2012