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.
LETG panels are effective in any geographic or climatic zone and can be used in residential or industrial buildings.
There are three ways we can use energy from the sunlight falling on the Earth:
Photovoltaic Electricity – uses photovoltaic cells that absorb the direct sunlight just like the solar cells you see on some calculators.
Solar Thermal Electricity/Heat – uses a solar collector - it has a mirrored surface that reflects the sunlight onto a receiver that heats up a liquid, or it has a plane absorbing surface. This heated liquid is used directly or to make steam that produces electricity.
Hybrid Photovoltaic/Thermal (PV-T) – uses a solar collector combined with photovoltaic cells. Such hybrid systems produce electric and thermal energy simultaneously.
The PV-T Solar systems are main product focus of our company
With conventional solar photovoltaic systems the solar photovoltaic cells are heated by the sun and all of the heat energy is allowed to escape. But the PV-T Solar system captures the heat from the PV cells and puts it to work. PV-T Solar systems typically generate over 100% more energy than conventional solar electric systems.
PV-T Solar system is best of solar appropriate technologies for households. Electricity, space heating, water heating - more of the energy you need, all from a single solar system.
Electricity can be directly used in household or returned to electric grid. Thermal energy also can be directly used or stored in a seasonal heat store. This is a store designed to retain heat deposited during the hot summer months for use during cold winter weather.
Monofacial LETG panels are designed mainly for installation on the roofs of houses. Bifacial LETG panels are designed for installation on the ground or on flat roofs to use also solar light reflected from its surface or special reflectors.
Our company aims at laying the foundations for a large scale introduction of PV-T into the market. The aspects that determine this introduction are the market, technology - R&D and industry - and standards and policy aspects.
