Adequate warmth is generally defined to be 21°C in the main living room and 18°C in other occupied rooms during daytime hours, with lower temperatures at night, following the recommendations of the World Health Organization. However, there are a variety of different ways of considering household income when measuring fuel poverty.
Fuel poverty is not just about access to heating as the definition of fuel is taken to include all expenditure on domestic energy, including that used for hot water, cooling, lights and appliances.
In Eastern Europe (transition economies) the term Energy Poverty is sometimes used instead. However this use of the term (which is about a lack of access to energy services due to economic poverty) can be confused with indicating a lack of any access to energy infrastructure, as has been used by the World Economic Forum when establishing its Energy Poverty Action (EPA) initiative in 2005 to address energy poverty in the developing world by implementing electrification schemes (grid-extension and off-grid).
As Fuel Poverty is seen by some people as sounding unduly negative, some specialists in the field prefer to talk about its converse - Affordable Warmth instead.
The most effective way of combating fuel poverty, if one excludes forcible rehousing, is to target energy efficiency measures on homes typically occupied by those on low incomes. A home with a very low energy requirement to provide adequate warmth can generally be occupied by those on relatively low incomes without leading to fuel poverty. The sharp rise in fuel prices from 2006-8 has led to an estimated doubling of the numbers in fuel poverty in countries where it is a major problem.
Under the Climate Change and Sustainable Energy Act 2006 the Government is obliged to report annual progress in cutting the number of households in which one or more persons are living in fuel poverty.
The UK has two main programmes that are designed to address fuel poverty by improving energy efficiency. These are the WarmFront programme, offering a package of measures at no cost to private sector residents meeting certain, mainly income-related, requirements, and the Carbon Emissions Reduction Target (CERT, formerly the Energy Efficiency Commitment), which requires licensed energy supplier to meet certain targets in improving domestic energy efficiency, with at least 40% of such savings to come from defined target groups who are more likely to suffer from fuel poverty. The Government imposes certain standards on public sector landlords to help them lift their tenants out of fuel poverty. The Government also claims that the Winter Fuel Payment helps to mitigate fuel poverty, but as this is paid to all households with an occupant over 60, this measure is a generally available benefit and not targeted on the fuel poor.