
The first targets for renewable energy, 5% of by the end of 2003 and 10% by 2010 'subject to the cost to consumers being acceptable' were set by in 2000. The UK Government's goal for production is to produce 20% of electricity in the UK by 2020. The 2002 Energy Review set a target of 10% to be in place by 2010/2011. The target was increased to 15% by 2015 and most recently the 2006 Energy Review further set a target o.

Section 23.1 The Solar System This section gives an overview of the planets of the solar system and describes the nebular theory of the formation of the solar system.

These minor ‘planets’ are now divided into two classes: dwarf planets, and Small Solar System Bodies (SSSBs). Between the orbits of Mars and Jupiter lies what is termed the Main Belt of what are still universally called asteroids, the largest of which, Ceres, has been elevated to dwarf planet status.