A wider of range of plant material could be turned into biofuels thanks to a breakthrough that converts plant molecules called lignin into liquid hydrocarbons.
The reaction reliably and efficiently turns the lignin in waste products such as sawdust into the chemical precursors of ethanol and biodiesel.
In recent years, the twin threats of global warming and oil shortages have led to growth in the production of biofuels for the transportation sector.
But as the human digestive system will attest, breaking down complex plant molecules such as cellulose and lignin is a tricky business.
Food crisis
The biofuels industry has relied instead on starchy food crops such as corn and sugar cane to provide the feedstock for their reactions. But that puts the industry into direct competition with hungry humans, and food prices have risen as a result.
A second generation of biofuels could relieve the pressure on crop production by breaking down larger plant molecules – hundreds of millions of dollars are currently being poured into research to lower the cost of producing ethanol from cellulose.
But cellulose makes up only about a third of all plant matter. Lignin, an essential component of wood, is another important component and converting this to liquid transport fuel would increase yields.
However, lignin is a complex molecule and, with current methods, breaks down in an unpredictable way into a wide range of products, only some of which can be used in biofuels.
By Colin Barras
full article
Friday, 18 July 2008
Burning desire to heat homes with wood fuel
Going back to basics by heating your home or business with wood could be cheaper than using fossil fuels.
Improvements in the efficiency of wood-burning technology means that biomass units are now a viable alternative to using gas and oil.
Forestry Commission Scotland has recently appointed biomass development officers throughout the country to encourage individuals and businesses to take advantage of the improvements.
Ian Cowe, who is responsible for providing support to people in the north-east, said: “The UK is playing catch-up with mainland Europe, where high-efficiency wood-fuelled boilers meet a large proportion of the domestic and commercial heating demand and biomass energy presents a range of fantastic opportunities.”
“With the increases in oil and gas prices, biomass is now competitive with most other forms of domestic heating.
By Leanna MacLarty
full article
Improvements in the efficiency of wood-burning technology means that biomass units are now a viable alternative to using gas and oil.
Forestry Commission Scotland has recently appointed biomass development officers throughout the country to encourage individuals and businesses to take advantage of the improvements.
Ian Cowe, who is responsible for providing support to people in the north-east, said: “The UK is playing catch-up with mainland Europe, where high-efficiency wood-fuelled boilers meet a large proportion of the domestic and commercial heating demand and biomass energy presents a range of fantastic opportunities.”
“With the increases in oil and gas prices, biomass is now competitive with most other forms of domestic heating.
By Leanna MacLarty
full article
Gas bills 'to top £1,000 a year'
Energy bills could rise by more than 60% within the next few years, a report for the UK's biggest domestic energy supplier Centrica has said.
It said annual average gas bills could rise from £600 to more than £1,000 early in the next decade.
Continuing high oil prices could lead to rises in the cost of both gas and electricity, it added.
Centrica managing director Jake Ulrich warned that gas prices were likely to continue rising "for some time".
"I think it is going to hit people hard," he said.
"I do think we will see people change their behaviour, I think people will use less energy and I hate to go back to the Jimmy Carter days in the US but maybe it's two jumpers instead of one.
"I think people will change the temperature they keep the house, they'll be more cognisant of energy waste, they'll buy better appliances."
full article
It said annual average gas bills could rise from £600 to more than £1,000 early in the next decade.
Continuing high oil prices could lead to rises in the cost of both gas and electricity, it added.
Centrica managing director Jake Ulrich warned that gas prices were likely to continue rising "for some time".
"I think it is going to hit people hard," he said.
"I do think we will see people change their behaviour, I think people will use less energy and I hate to go back to the Jimmy Carter days in the US but maybe it's two jumpers instead of one.
"I think people will change the temperature they keep the house, they'll be more cognisant of energy waste, they'll buy better appliances."
full article
Thursday, 17 July 2008
The Landlord’s Energy Saving Allowance scheme (LESA)
The LESA is a tax allowance that lets landlords claim up to £1,500 on their tax return against the cost of buying and installing energy saving items, such as cavity insulatio
The Landlord’s Energy Saving Allowance scheme (LESA) allows landlords to claim the cost of buying and installing the following items:
• draught proofing
• loft insulation
• floor insulation
• cavity wall insulation
• solid wall insulation
• insulation for hot water systems
It’s simple to do. When filling in the Land and Property supplementary pages of your tax return, you should include the costs of these items in box 5.36C. Guidance on LESA can be found in the supplementary notes for the Land and Property pages of your main self-assessment return. Visit www.hmrc.gov.uk/worksheets/sa105notes.pdf for further details.
If you haven’t done the work yet, you will need to do so by the end of March 2008 in order to claim LESA next time round.
“Insulating your property can increase its long-term value, make it more attractive to potential tenants and put your property on a good footing for the launch of Energy Performance Certificates later this year. Not only will it reduce tenant’s energy bills, it can also help alleviate damp conditions making your property a healthier and warmer place for your tenants to live in. It can also reduce unnecessary maintenance costs associated with damp and condensation.” Said Mark Brown, Director of the Energy Efficiency Partnership for Homes.
For more information and free, impartial advice on energy efficiency improvements call 0800 512 012 or visit http://www.energysavingtrust.org.uk/
full article
The Landlord’s Energy Saving Allowance scheme (LESA) allows landlords to claim the cost of buying and installing the following items:
• draught proofing
• loft insulation
• floor insulation
• cavity wall insulation
• solid wall insulation
• insulation for hot water systems
It’s simple to do. When filling in the Land and Property supplementary pages of your tax return, you should include the costs of these items in box 5.36C. Guidance on LESA can be found in the supplementary notes for the Land and Property pages of your main self-assessment return. Visit www.hmrc.gov.uk/worksheets/sa105notes.pdf for further details.
If you haven’t done the work yet, you will need to do so by the end of March 2008 in order to claim LESA next time round.
“Insulating your property can increase its long-term value, make it more attractive to potential tenants and put your property on a good footing for the launch of Energy Performance Certificates later this year. Not only will it reduce tenant’s energy bills, it can also help alleviate damp conditions making your property a healthier and warmer place for your tenants to live in. It can also reduce unnecessary maintenance costs associated with damp and condensation.” Said Mark Brown, Director of the Energy Efficiency Partnership for Homes.
For more information and free, impartial advice on energy efficiency improvements call 0800 512 012 or visit http://www.energysavingtrust.org.uk/
full article
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