Here is a (long) excerpt: Here's how I made that estimate: The fuel duty reductions mean that instead of 68 pence per litre, the duty will be 55 pence per litre in 2014-15 (chart 2.1).
Instead of the 1.5-litre, 50mpg-plus diesel originally mooted, it's now packed a 1.6-litre petrol capable of 38mpg.
If they can get the mix right, their generators could in theory run on 40 cents a litre of bio-diesel instead of $1.20 for a litre imported fuel.
Charging at the peak rate is equivalent to buying petrol at $3.63 a gallon (80 cents a litre), instead of 77 cents a gallon off-peak, reckons Southern California Edison, a utility based in the Los Angeles area.
If you use 2-Litres, then instead of using balloons you can tighten the cap to just before it is fully sealed, which will let gas escape when it builds up but won't let any in when it stops fermenting.
The bar uses half-litre tin cans instead of glasses to serve customers.
Sachet packaging of small amounts of products such as shampoo, toothpaste and conditioner allows the global poor to afford these products instead of the more expensive, typically one-litre, packaged bottles and containers in western countries.
Instead of petrol taxes going up by 2p a litre, they will be frozen.
One reader commented that instead of using such gadgets, she fills up a 1.5 litre plastic water bottle and pops it in the cistern, noting that it does the same and job and that the plastic does not degrade.
Though it's also worth experimenting with lemon juice instead of rennet – allow the juice of a lemon to a litre of milk as a guideline.
After fermentation and recovery of culture supernatant, the heterologous protein was more efficiently purified from the 3 litres of culture supernatant by ion-exchange chromatography instead of metal chelate affinity chromatography.
