Connecting the Future - Greenpeace UK
Connecting the Future - Greenpeace UK
Connecting the Future - Greenpeace UK
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<strong>Connecting</strong> <strong>the</strong> future: <strong>the</strong> <strong>UK</strong>’s renewable energy strategy<br />
Sustainable energy systems<br />
52<br />
POTENTIAL CARBON SAVINGS (million tonnes C) ADDITIONAL CARBON<br />
Electricity only Heat only Heat and SAVINGS from avoided<br />
Biomass source electricity landfill (mtce)<br />
‘Dry’ materials<br />
Sawmill conversion products 0.23-0.27 0.38-0.44 0.46-0.54<br />
and arboricultural arisings<br />
Energy crops (short rotation 0.03-0.04 0.04-0.06 0.05-0.08<br />
coppice, e.g. willow / poplar<br />
and miscanthus)<br />
Cereal straw 0.40-0.48 0.65-0.80 0.79-0.97<br />
Paper and card [3] 0.13-0.34 0.21-0.55 0.27-0.71 0.59<br />
Garden / plant waste [3] 0.14 0.23 0.32 0.13<br />
Waste wood [3] 0.91 1.50 2.05 0.45<br />
Sewage sludge (dry solids) 0.05-0.07 0.08-0.11 0.10-0.13<br />
Poultry manure - meat / birds 0.15 0.25 0.30<br />
(60% DM)<br />
Sub total 2.04-2.40 3.34-3.94 4.34-5.10 1.17<br />
‘Wet’ materials<br />
Poultry manure - egg laying flock 0.03-0.06 0.04-0.08 0.05-0.10<br />
(30% DM)<br />
Dairy cattle slurry (10% SM) 0.15-0.16 0.19-0.20 0.24-0.26<br />
Pig manures (10% DM) 0.04 0.05 0.06<br />
Food waste [3] 0.09-0.16 0.14-0.26 0.19-0.33 0.71<br />
Sub total 0.31-0.42 0.42-0.59 0.54-0.75 0.71<br />
Total 2.35-2.82 3.76-4.53 4.88-5.85 1.88<br />
Table 4.5 Potential annual emission savings from replacing grid electricity<br />
and heating oil with biomass<br />
Data supplied by D.Turley, Central Science Laboratory<br />
except [3] provided by James Vause, Defra<br />
Biomass offers <strong>the</strong> possibility of compensating for <strong>the</strong> intermittency of o<strong>the</strong>r<br />
forms of renewable generation, while producing almost carbon-neutral energy<br />
(Biomass Task Force 2005). If <strong>the</strong> <strong>UK</strong> is to move towards more sustainable<br />
energy systems in <strong>the</strong> future, biomass will have an important role to play in<br />
ensuring <strong>the</strong>ir reliable delivery. Action to promote <strong>the</strong> expansion of a viable and<br />
sustainable biomass industry in <strong>the</strong> <strong>UK</strong> is <strong>the</strong>refore vital in <strong>the</strong> short-term if<br />
<strong>the</strong> necessary longer-term strategic shifts in energy systems are to take place.<br />
This will involve an urgent change of emphasis in government policy from <strong>the</strong><br />
use of biomass for co-firing in conventional coal fired power stations to more<br />
local, smaller-scale CHP plants. And <strong>the</strong> establishment of viable supply chains<br />
between biomass producers and users. Given <strong>the</strong> range of players that would<br />
be involved, this will not be a simple task, but increasing <strong>the</strong> level of certainty