Targets what needs to be achieved? Restrictions what limits have been put in place? Data what information have we been given? build an eco-friendly housing estate carbon footprint of 1000 t/y make a profit dev. cost limit of £95M no more than 200 of each house type total area of 100,000m 2 house prices and previous sales figures costs of energy saving extras Variables what factors can be changed in this model? … and what is the effect of changing them?
number of each type of house
number of energy saving measures (in each house type)
profit margin (for each house type)
(all on first sheet!)
Questions what could we do with knowing before we tackle the problem?
which is the most cost effective energy saving measure?
are some house types more desirable than others?
are some house types cheaper to build (per m 2 ) than others? -Yes
is there anything else we should be trying to achieve? - a good mix of homes?
what effect does adding every energy saving measure have?
should we try to do better than the carbon footprint target of 1000 tonnes per year?