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An oasis of PV
A new study shows that solar may help reduce water pumping costs in a desert oasis of Mauritania by more than 300%, while also considerably reducing water losses. The researchers claim that PV water pumping may also help prevent the desertification of these areas.
Water pumping systems powered by solar energy may help Mauritania reduce water losses across its numerous oases, while also significantly lowering water pumping costs, according to the study Rehabilitation of Mauritanian oasis using an optimal photovoltaic based irrigation system, published in ScienceDirect.

The authors of the research found that PV water pumping systems, which are said to have high performance and feasibility in remote desert areas, can help minimize over irrigation of fields when compared to conventional pumping tools based on manual withdrawal.

The study findings are based on a simulation case study irrigation water pumping project comprised of eight submersible pumps totaling 83.5 kW of power, supplied by a 142.8 kW thin-film PV installation at the Tawaz oasis, one of the largest date palm production oases. Located in Atar city in the Adrar Plateau of northern-central Mauritania, the site has an average solar radiation or peak sun hours of 5.67 kWh/m2/day.

The pumps deliver 80% of the available well capacity for eight zones of date palm trees planted at the oasis, while an additional 250 fiberglass storage tanks with capacity of 4 m3 each are also used to ensure the system’s production. The one-year simulation of the proposed system demonstrated it delivering a pumped water cost of 0.2071 USD/m3, which is said to be 300% lower than the current pumping costs.

Storage of water or electricity?

The research team also revealed that using an energy storage system at the facility may reduce system’s overall efficiency and increase costs. They also explained that plants are irrigated during low solar intensity periods, in early mornings or late afternoons, as the evapotranspiration is low. If the battery option is excluded, the appropriate selection of storage tanks becomes crucial to provide the used irrigation technique’s suitable pressure and volume. “Typically, the storage tank is designed to withstand 3 days without any solar radiation to meet the required water demand,” they also wrote.

In the case study, the tank’s size was designed to hold 25% of the year’s peak water requirement to irrigate 100 date palm trees. “Based on the proposed design, each tank can irrigate 100 date palm trees that distributed over approximately 1 ha.”

Improving date palm harvest

According to the research team, solar water pumping can be particularly useful for improving date palm production in the country’s regions of Adrar, Tagant, Assaba, and Hodh. It can also support preventing the ongoing desertification of oases in these areas.

The study also stresses that PV water pumping systems are better than diesel power generator based systems, due to their high maintenance and fuel transportation costs.

The International Renewable Energy Agency (IRENA) and the United Nations Convention to Combat Desertification (UNCCD) have recently signed an agreement to combat desertification with renewable energies. IRENA said renewables can stimulate land restoration and conservation, and can also be used in the agri-food sector to alleviate poverty through rural community development projects. Solar PV is also playing an active role in the roll-out of solar pumps across India.

#solar #solarcell #solartechnology #solarefficiency #nanotechnology
https://list.solar/news/20191007/an-oasis-of/
Ambibox reports efficiency world record for solar DC charging of electric off-road buggy

A German start-up achieved more than 99% efficiency when charging a vehicle developed by the Bochum University of Applied Sciences with electricity from solar cells. Ambibox’s DC charging technology was used in a research project in the Australian desert.

Students at Bochum University have developed an off-road electric vehicle that can be charged with PV modules. And because the vehicle doesn’t belong on the A40 in the Ruhr, but rather in the desert, the students took a joyride in Australia: trying to cross the central Simpson Desert where the temperature at the time of writing was 45 degrees Celsius.

The SolarBuggy vehicle carries folding solar modules. Filling the battery requires special charging technology with a very high level of efficiency, small volume and low dead weight. The technology must achieve optimum efficiency in the desert under the most extreme conditions, must be dust proof and be able to be cooled via the housing without a fan even in hot temperatures.

Technology partner Ambibox, a start-up from Mainz, near Frankfurt am Main, modified its charge controller and adapted the power electronics for the brief. “The technology in the SolarBuggy corresponds to the future charging infrastructure for electric vehicles: highly efficient with high performance in a small space and based on DC voltage,” said managing director Manfred Przybilla.
#solar #solarenergy #solarpower #solartechnology #solarefficiency #solartransport

https://list.solar/news/20191022/ambibox-reports/
Fate of green hydrogen depends on ever cheaper renewables – for now

Analyst WoodMac has spelled out the urgent need to decarbonize the global hydrogen production industry. While the fuel can offer a sustainable grid balancing act for intermittent renewables, in its current fossil-fuel driven form it is pumping out more than 800 tons of carbon into the atmosphere every year.

Green hydrogen production will be able to compete on cost with fossil-fuel hydrogen by 2030 in Australia, Germany and Japan – but only if renewable energy prices continue to tumble or more policy levers are pulled.

That is the chief finding of a report published today by Scottish analyst Wood Mackenzie, which predicted the 252 MW of green hydrogen production capacity expected worldwide this year will expand to 3,205 MW by 2025.

The urgent need for renewable-energy produced hydrogen was explained by WoodMac not only as an energy storage grid balancing alternative to fossil fuel power plants but also because of the hugely damaging CO2 emissions created during the production of hydrogen at present for use in other sectors.

With hydrogen required for oil refining, steelmaking and the production of ammonia and methanol, oil and gas are the dominant fuels used in its creation, especially in China and the U.S.

#solar #solartechnology #solarenergy #solargreenhydrogen

https://list.solar/news/20191022/fate-of-green/
Highview Power to build UK’s first large scale ‘cryogenic’ energy storage facility

The long-duration energy storage provider plans to eventually build a portfolio of 50 MW/250 MWh liquid air systems throughout the United Kingdom.
#solarstorage #solar #solarenergy #solargrid

https://list.solar/news/20191022/highview-power/
Tesla is launching version three of its solar roof tile this week

Tesla will debut a new, third iteration of its solar roof tile this week — with an official debut tomorrow afternoon. Tesla CEO Elon Musk said during the company’s earnings call on Wednesday that it’ll make an official announcement detailing the differences in generation three on Thursday afternoon.
#solarstorage #solar #solarenergy #solargrid

https://list.solar/news/20191024/tesla-is-launching/
Microquanta achieves 14.24% efficiency with large-area perovskite solar module

The four-year-old Hangzhou-based business says it already has a 20 MW perovskite module pilot line and is working on a mass production facility in the city of Quzhou.
#solar #perovskitecell #solartechnology #solarefficiency #solarcell

https://list.solar/news/20191025/microquanta-achieves/
Solar Cell Efficiency Increased With Innovative Two-Dimensional Materials

Perovskite thin film solar cell is a new promising technology of alternative energy sources that is being actively developed worldwide. One of advantages is a simple and low cost of production process: perovskites solar cells can be printed from solution on special inkjet or slot die printers without the use of high temperature/vacuum processes as for traditional silicon cells.
#solar #perovskitecell #solartechnology #solarefficiency #solarcell

https://list.solar/news/20190930/solar-cell-efficiency/
French start-up launches solar engine

The invention converts the energy produced by PV cells directly into mechanical motion without the need for batteries or power electronics. Its developers claim the robustness of the solar motor can drive water pumps and ventilation turbines for more than 20 years without the need for maintenance.
#solar #solarenergy #solartechnology #solarstartup #solarmotor

https://list.solar/news/20190910/french-start-up/
KORE Power will start a 10-GWh lithium-ion battery manufacturing plant in the United States

KORE Power today announced its intentions to build a lithium-ion battery manufacturing plant in the United States to support global growth efforts for its Mark 1 Energy Storage System.
#solar #solarenergy #lithiumionbattery #solarstorage

https://list.solar/news/20191022/kore-power-will/
Perovkiste solar cells need proteins

A U.S. research team has used protein bacteriorhodopsin to improve the efficiency of what it called ‘bioperovskite’ solar cells. The scientists used Förster Resonance Energy Transfer to predict the strength of long-range excitonic transport between the perovskite and protein layers.
#solar #solarcell #solartechnology #solarefficiency #perovskitecell

https://list.solar/news/20191028/perovkiste-solar/
PV against cancer

Research from the United States has demonstrated how PV technology can be used to kill cancer cells. Although still at an embryonic stage, the findings of the study and initial test results suggest solar power could be an effective tool in relation to light-activated fluorescent dyes for disease diagnosis, image-guided surgery and site-specific tumor treatment.
#solartechnology #solar

https://list.solar/news/20191028/pv-against-cancer/
Scientists double down on hydrogen production

A team of scientists led by the University of Glasgow has discovered a more efficient method of splitting water into hydrogen and oxygen using electricity which it says could almost double the amount of hydrogen produced per millivolt.
#solar #solartechnology #solarefficiency #solarhydrogen

https://list.solar/news/20191031/scientists-double/
Dutch startup Lightyear sets new benchmark in automobile aerodynamics with its solar-powered car

Many of the technologies we come across everyday seem to be either perfect or nearing perfection. However, there is always scope for improvement and this is what the Dutch startup Lightyear follows. The company manufactures a car that comes equipped with a solar panel that helps generate electricity and improve the vehicle’s range. While the solar panel itself is not a new innovation, the company has announced of notably improving the aerodynamics of its car.
#solar #solartechnology #solarstartup #solarpoweredcar #solartransport #solarefficiency

https://list.solar/news/20191101/dutch-startup/
Straining to fix perovskite cells

A technique based on optical imaging has been used by an international research team to illuminate strains in lead halide perovskite solar cells without harming them. The scientists claim the approach helped them discover misorientation between microscopic perovskite crystals was the main cause of the strains.
#solar #solarcell #solartechnology #solarefficiency #perovskitecell

https://list.solar/news/20191102/straining-to/
Swimming electrons in perovskite nanocrystals

Research from Canada has revealed liquid-like lineshape dynamics in cesium-lead iodide perovskite nanocrystals. The findings could be used to produce cheaper and more efficient perovskite cells, researchers claim.
#solar #solarcell #solartechnology #solarefficiency #perovskite #perovskitecell

https://list.solar/news/20191102/swimming-electrons/
Netherlands is likely to generate 27 GW of solar energy by 2030

The Environmental Assessment Agency of Netherlands (Planbureau voor de Leefomgeving – PBL) promises that the country’s photovoltaic generation will grow by 5 GW by the end of the following year compared to 4.4 GW in 2018. Toward the end of 2023, the PV capacity is forecasted to be near 15 GW.
#solar #solarenergy

https://list.solar/news/20191104/netherlands-is/
2025/07/05 19:58:31
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