Common use of Perception Clause in Contracts

Perception. of benefits and costs associated to residential hydrogen fuel cells (mean value) BE (M) FR (M) DE (M) NO (M) SL (M) ES (M) UK (M) Total Difference (eta) Cost too much to install-- have acceptable costs 2.7 3.0 2.9 2.9 2.9 2.8 2.8 2.9 .073 Cost too much to run-- be affordable to run 3.0 3.3 3.2 3.2 3.4 3.0 3.3 3.2 .109 Be very inconvenient (in terms of noise, vibration, specific location)--very convenient 3.4 3.6 3.6 3.2 3.7 3.4 3.5 3.5 .138 Have a very negative--very positive effect on the environment 3.8 3.9 4.1 3.8 3.9 3.7 3.9 3.9 .096