For a long time it has been known that the cleanest energy that exists is solar power – energy from the sun. It is abundant and replenishable – at least, it won’t run out for four or five billion years.
But solar power has a big – and obvious – drawback: It doesn’t work if there’s no sunlight. And in far northern or southern latitudes – especially in winter when days are short – lack of light has been a real stumbling block.
Which is what makes the light electric and thermal generator – or LETG – so exciting. The LETG is able to significantly increase efficiency while simultaneously reducing cost. That means the LETG has the potential to greatly extend what solar power can deliver.
The LETG captures and stores sunlight using a hybrid module design that differs from previous combination module devices, making possible the year-round production of thermal and electric energy. Its spectral-selective thermal liquid circulates on the reception surface of a photoelectric circuit, which makes it possible to increase the quantity and to change the quality of incident solar radiation spectral distribution as well as carry out the thermal energy recovery with minimum loss. To put its potential power in perspective, the LETG can increase electric power 250% and thermal output by 170%.
LETG modules are effective in any geographic or climatic zone and can be used in residential or industrial buildings.
Solar Energy Technologies Presentation 2008
