Solar Photovoltaic Power Generation Utility Patent

What are the patents on photovoltaic cells?

The patents on photovoltaic cells are concentrated in the area of semiconductors for the conversion of solar radiation into electric energy, in the area of generators for the direct conversion of light energy into electric energy and in the area of solar panels adapted for roof structures.

How has photovoltaic technology developed over the last 30 years?

Photovoltaic technology has developed rapidly over the last thirty years. The main activities of photovoltaic patents began in the late 1950s and the main photovoltaic patent assignees at that time were involved in the space business , . Patent data has been widely used in technology assessment and forecasting , , , .

What is the technological system of solar photovoltaics?

2. The technological system of solar photovoltaics The PV technological system is a power system comprises a sequence of interconnected components that work together to convert sunlight energy into electricity, utilize the generated energy, store it, or invert it ( Fig. 1 ).

What is a photovoltaic energy payment program in China?

In China, it was launched in 2009 for installations with capacity over 50 kW, the solar photovoltaic energy payment program, which provides subsidy of US $ 2.93/W of photovoltaic solar energy generated . There are also incentives to use renewable energy in residences, such as the net-metering system.

Why are photovoltaic cell patent registrations important?

Photovoltaic cell patent registrations are a valuable data set in the analysis and diffusion of PV technology and R&D activities. The dynamics of PV R&D activity is considered high, documented in a large increase in PV patent documents .

How many patents does first solar have?

In the ninth position, with 151 patents, is First Solar, a US company one of the largest manufacturers of photovoltaic solar modules with production units in the United States, Malaysia, Germany and Pakistan.