We
are often asked to advise on the cost of central heating using the
different types of wood fuels available (logs, pellet, chip) as
opposed to the cost of heating with a fossil fuel such as gas or
oil, or with electricity. Whilst many individuals and other organisations
are keen to heat in a more sustainable way (by using a renewable
source of energy such as wood) many are nervous about the costs
and involved in the purchase of the fuel and equipment. Another
issue of concern to many is the availability of wood fuel. Here
at the National Energy Foundation we have found that the market
for wood fuels is changing rapidly. We are frequently advised
of new suppliers of wood pellets and have found that as the price
of oil and other fossil fuels have increased that wood fuels, particularly
woodchip and pellets have become much more competitive, if not cheaper.
Fuel
Costs
It
is always difficult to make comparisons between the cost of heating
with different fuels, given that there are a number of different
suppliers in the market, different tariffs for day and night time
(electricity), different costs according to the quantity purchased
(particularly for solid fuels such as logs and coal) etc. In addition,
the efficiency of the heating system installed needs to be taken
into consideration when calculating a more appropriate cost per
useful kWh in pence, rather than per unit cost. Given the number
of variables the prices given should be treated with caution, perhaps
reflecting the relative costs of heating with each type of fuel
as opposed to absolutes.