This paper sets out the results of the York Energy Demonstration Project an
d discusses its implications for the modernisation of low rise housing in t
he UK. The project consisted of three schemes, which were carried out in th
e early to mid 1990s and monitored over a 2-year period. Results indicate t
hat modernisation schemes have a very important part to play in reducing CO
2 emissions and that improvements in the region of 50% can be achieved at m
odest cost using well proven (early 1980s) technology. The possibility of a
dditional improvements are also identified which could see emissions fall b
y a further 30-40%. In addition, the project identifies difficulties posed
by, often small, variations in dwelling construction, which can have a disp
roportionate impact on costs, and by the design and use of mixed heating sy
stems which can reduce overall heating efficiencies. The paper also discuss
es the impact of the demonstration project on the dissemination of good ene
rgy efficient practice within the Local Authority and highlights the lesson
s learned for implementation in future modernisation schemes. (C) 2000 Else
vier Science S.A. All rights reserved.