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ry sky and with good luck square. Radiators or fans WORLDWIDE GLASS windows would allow sig-
in the glow of the Northern are not required, so the in- ENERGY TRENDS nificant savings, as win-
lights. terior space is free for other dows are estimated to be
There is no draft in the uses. Buildings account for 44 responsible for 24 per cent
proximity of an electri- This will bring significant per cent of total energy of heating needs in the EU
cally heated glass to spoil benefits to space use and consumption in the EU and for 9 per cent of cool-
the customers experience. increase the building area. countries (industrial build- ing needs.
Finnglass, one of the pio- Electrically heated glass can ings 7 per cent, domes- The impact of buildings
neers in the field, has been also be used in glass ceilings tic and tertiary buildings on energy consumption
developing the electrically to melt snow and ice and to 37 per cent). Switching is enormous: they use 60
heated glass for 20 years prevent condensation. to more energy efficient per cent of the electricity
now, and it would be suit-
able for many applications
in modern construction.
The heated glass wall is
more expensive than tradi-
tional glazing but it gener-
ates substantial savings in
energy consumption and
it increases available floor
space.
The inner surface of the
electrically heated glass is
warmed 1-2 degrees above
room temperature, hence
the cold wall effect and the
convection are prevented.
The energy consumption
is only 20-40 watts per

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