giovedì 25 settembre 2014

High Performance Pv Panels

There are two brands in the world that produce high-performance solar panels. The Californian Sunpower and the Japanese Sanyo (now owned by Panasonic). What do we mean by the word "high efficiency". It' photovoltaic modules with efficiency that approaches or exceeds 20%. Normally the low cost panels (eg Chinese ones) stop at a yield of 13-14%, a little higher for the expensive ones.
Take for example the Hit series of sanyo, look here for the datasheet. Hit stands for Heterojunction with intrinsic Thin-layer, a mix between crystalline silicon and thin film. In this case Sanyo utilizes both technologies to increase the energy yields.
Pic on the left shows the results of a test carried out by SANYO in Garching (Germany) during 365 days between the first 1 January 2009 and 31 December 2009. In this test were used HIT-240/235 HDE4 SANYO PV modules compared with other pv competitors in the same conditions: the roof facing south, 30 degree incline, SMA 1700 BC inverter. The diagram shows that the SANYO HIT modules have an energy efficiency significantly higher than the other (source Sanyo website).
Sunpower: the E20 series (modules with power ranging from 333 and 327 watts) comes to reach an efficiency of 20%, compared to an average of 14-15% of the other competitors.
Sunpower modules got a 25-year warranty also solar panels allows you to produce more energy on the same surfaces compared with conventional models. This results in a greater conversion of sunlight into electricity, and then a smaller space occupied by the modules.
Pro:
the High Performance Pv Panels offer maximum results with minimum effort, it is certainly the best solution, both for family pv implants and for company. By installing a system by Sunpower or Sanyo-Panasoni you will be certain to enjoy efficient solar plants, covered by a warranty of 25 years.
We also talk about a brand that offers solutions for all brands and needs and able to ensure maximum efficiency and reliability and a guaranteed return over time. Quality materials, tested repeatedly, a guarantee in the long run.
Prices: about 1,5 dollars per watt (2014 prices).
Ranking of the best solar modules in the world for performance:
1. Sunpower 20.40% E20 / 333 pv
2. AUO 19.50% PM318B00
3. Sanyo Electric 19.00% HIT-N240SE10
4. Jiawei 18.30% JW-S100
5. Crown Renewable Energy 18.30% Summit 100LM
6. Idea Solar 17.50%
7. Winaico 17.15% WSP-285M6
8. PVT Austria 16.88%
9. JA Solar 16.84%
10. Zytech 16.84% ZT 215S

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