AS Published on Saturday 17 September 2022 - n° 416 - Categories:fundamentals PV
How to choose a battery?
DNV recommends investigating a supplier's battery by comparing four criteria:
1) Start with the cell
AS Published on Monday 5 September 2022 - n° 414 - Categories:fundamentals PV, brochures
The trend in ingot cutting wire: the emergence of tungsten wire
Reducing the thickness of cutting wires.
The high cost of silicon has accelerated the search for thinner wafers. From 2018 to 2020, manufacturers spent three years reducing thickness by just 5 μm. However, since 2021,
AS Published on Sunday 4 September 2022 - n° 414 - Categories:fundamentals, fundamentals PV
Weight of silicon per watt; silicon price increase between mid-2020 and mid-2022
The China Non-Ferrous Metals Industry Association has just reported that the price of silicon has reached $45.47/kg,
L R AS Published on Monday 14 February 2022 - n° 393 - Categories:hydrogen, fundamentals PV
How to store hydrogen?
Finnish and Swedish researchers have reviewed the different ways of storing it. They tested storage tanks, geological storage and other underground options.
Their conclusion is clear:
L R AS Published on Monday 20 September 2021 - n° 374 - Categories:fundamentals PV
Lifetime of residential solar panels
The life of the panels depends on several factors: climate, type of panel and the racking system used, among others. Production loss over time, estimated at 0.5% per year,
L R AS Published on Monday 20 September 2021 - n° 374 - Categories:fundamentals, fundamentals PV
What is the lifetime of a residential solar inverter?
The inverter is a device that converts the direct current produced by the solar panels into usable alternating current. It can be a string or a microinverter. Micro-inverters
AS Published on Monday 28 June 2021 - n° 368 - Categories:fundamentals, fundamentals PV
Estimated silicon statistics in 2021
Silicon total silicon production capacity in the world
AS Published on Monday 19 April 2021 - n° 359 - Categories:fundamentals, fundamentals PV
Silver paste a factor in panel price increases
Various factors driving up panel prices
Between July 2020 and February 2021, the price of 3.2 mm and 2 mm glass has risen by more than 60% per square metre. The price of EVA and POE encapsulation films has risen by more than
L R AS Published on Monday 14 December 2020 - n° 344 - Categories:fundamentals, fundamentals PV, panels
Rise in the price of silver in 2021
The increase in demand for photovoltaic panels and the fall in the supply of ore will lead to a rise in the price of silver in 2021.
Precious metals specialists predict that
AS Published on Monday 9 November 2020 - n° 339 - Categories:cells, fundamentals PV
Description of a moulded cell
The German company NexWafe has taken up the idea of 1366 Technologies to create moulded silicon wafers without the need for ingots and sawing. Unlike the American, who can only produce multicrystalline, NexWafe can produce monocrystalline.
The traditional process produces a wafer 170 microns thick and 70 microns of dust. The NexWafe process
AS Published on Sunday 18 October 2020 - n° 336 - Categories:fundamentals PV, followers
The cost of trackers in a power plant
The demand for trackers responds to developers' demand to get the most energy out of their installations and to investors' interest in "green" energy.
In 2019, 70% of
L R AS Published on Sunday 13 September 2020 - n° 331 - Categories:fundamentals PV
The FBR process
The company's FBR method is a shorter production process,
L R AS Published on Saturday 12 September 2020 - n° 331 - Categories:fundamentals, fundamentals PV, cells, IBC. heterojunction
Heterojunction cells are sensitive to light-induced degradation (LID).
Heterojunction cells are sensitive to light-induced degradation (LID). It can lead to an absolute loss of efficiency of up to
L R AS Published on Sunday 30 August 2020 - n° 329 - Categories:fundamentals, fundamentals PV
An update on the silicon sector
Electricity accounts for more than 30% of silicon production costs.. This has pushed the producers
AS Published on Sunday 8 March 2020 - n° 312 - Categories:storage, fundamentals PV
What are the most interesting types of batteries?
Chinese people have classified the chemical compositions of the most commonly used batteries for storage in the network.
They found that each chemistry has advantages and disadvantages that make them more or less suitable for each application. The group looked at lead-ion and lithium-ion batteries,