By modifying the structures of molecules used in the positive and negative electrolyte solutions, and making them water soluble, the Harvard team was able to engineer a battery that loses only one percent of its capacity per 1000 cycles.
Harvard scientists have developed a new flow battery which stores energy in liquid, works 10 years without energy loss and is much safer than lithium-ion batteries.
After a few years of heavy use, most lithium-ion batteries suddenly loose a lot of storage capacity. You surely recognize this from your smartphone, but that’s also a problem for energy storage which should last a very long time to store solar energy. Scientists at Harvard University have found a possible solution.
The new technology promises a battery definitely lasting ten years without losing much capacity. The solution is applied to a so-called flow-battery. The flow battery stores energy in organic molecules dissolved in neutral pH water. This new chemistry allows for a non-toxic, non-corrosive battery with an exceptionally long lifetime and offers the potential to significantly decrease the costs of production.
Festivals encourage the donation of urine. It could be also used for batteries according to Standford University
Researchers at Stanford University have developed an inexpensive battery for renewable energy. This is done by making use of urea, a substance which is to be found in fertilizers and urine. Isn’t this great news?
Solar cells coated in clear plastic, are able to produce 11.2 million kilowatt hours
This SolarWind Bridge could power 15,000 homes. And even better, the bridge could be a vegetables garden.
Designed by Francesco Colarossi, Giovanna Saracino and Luisa Saracino as part of an Italian design contest to re-imagine a decommissioned bridge (for which it placed second), this so-called SolarWind concept would have solar cells embedded in the roadway and an array of 26 wind turbines underneath, which the designers say could produce enough energy combined to power 15,000 homes. Read More
Thanks to its lightweight, unbreakable and flexible properties the solar cell foil can be easily applied to or integrated into countless products. The foil will supply clean energy for dozen of years.
Flexible building integrated photovoltaics layers are ready to be scaled up.
With new materials like the flexible photovoltaics, developed by the Dutch company HyET Solar, solar may perhaps be much more widely applicable and gain a greater share of the energy mix.
CTO Edward Hammers: “Our solar cell film is quite unique, it is light and flexible and therefore easy to use. We are able to make all kinds of custom applications and for example cover all kind of roofs. Our solution is aesthetically and functionally better integrated for the built environment.”
Tesla/SolarCity launches multiple styled solar roof tiles replicating original tile aesthetics
Tesla founder and CEO Elon Musk wasn’t kidding when he said that the new Tesla solar roof product was better looking than an ordinary roof: the roofing replacement with solar energy gathering powers does indeed look great. Read More
Wattway, part of the France Colas constructions company, announced that four SolarRoad pilots will be built around the world in 2017.
Bloomberg December 4th:
(…) Colas SA, a French engineering firm, has designed rugged solar panels, capable of withstanding the weight of an 18-wheeler truck, that they’re now building into road surfaces. After nearly five years of research and laboratory tests, they’re constructing 100 outdoor test sites and plan to commercialize the technology in early 2018. (…/) Read More
The research team intends to lower the integral costs of PV-modules, by developing a worldwide unique AAA-class In-Line steady state solar simulator (ILSS) prototype for the PV-industry that is validated on criteria for test speed (5 modules/minute), test accuracy, heat development, maintenance and lamp replacement costs.
Why do we need an automated test-measurement system for Solar modules? PV-module manufacturers require automated inline testing equipment that provide accurate information about PV-module performance with industrial robustness and low testing cost per module.
Several factors affect a cell’s conversion efficiency value, including its reflectance efficiency:
We have to rush to limit climate change and to seize the economic opportunities that the transition entails. This WindWheel has released an architecture design for the wind turbine of the future
10 challenges we should overcome in order to transform successfully to a sustainable, strong and secure green energy economy.
Buildings, transport, industry, ICT, user behavior, energy storage, solar energy, wind energy, bio-energy, CO2 capture and more … Energy is one of the biggest changes in this century and has many aspects.
We present to you the ten important and urgent challenges, summarized by NERA. Read More
Aquion did come up with a breakthrough saltwater battery. It is environmentally friendly, cost effective and has a life cycle way beyond any other battery: up to 5,000 cycles.
The development of sustainable saltwater batteries enters the next level.
The American company Aquion Energy has received $ 33 million extra finance.
Previously, Bill Gates invested in Aquion Energy.
Aquion developed batteries that can store solar and wind energy to serve as backup for times when there is no wind nor sun. Saltwater batteries are not new, but the batteries from Aquion are special because they are using salt water as a conductor, instead of acids or bases.
Aquion has come up with a clever twist on a 200 year old salt water battery technology using:
Activated carbon (anode)
Manganese oxide (cathode)
And basically a salt water electrolyte
They have come up with a breakthrough solution. It is environmentally friendly, cost effective and has a life cycle way beyond any other battery: up to 5,000 cycles
So what’s Aquion’s energy storage innovation?
The startup — which was backed by Bill Gates and VCs like Kleiner Perkins and Foundation Capital — is making a low cost, modular grid battery made from basic materials like sodium and water.
The battery pairs a carbon anode with a sodium-based cathode, and a water-based electrolyte shuttles ions between the two electrodes during charging and discharging.
The technology was developed out of Carnegie Mellon University by founder and chief technology officer Jay Whitacre.
By using basic materials, Aquion is hoping its product is inexpensive enough to disrupt the current grid battery market.
Aquion’s CEO Scott Pearson:
“When the battery has been manufactured at a commercial scale for awhile, the price point of the battery could be $300 per kilowatt hour. That’s about a third of the cost of some of the more expensive lithium ion battery grid products.”
Saltwater batteries are tolerant to wide temperature ranges, partial state of charge cycling, and daily deep cycling with minimal degradation.
In addition to the safety and sustainability advantages of using water as electrolyte, another advantage is the thermal mass of the embodied water means that Aquion products neither heat nor cool rapidly. As such, the products can operate in a very wide operating temperature window because they simply take so long to heat and to cool.
The saltwater battery chemistry relies on charge/discharge mechanisms which are unaffected by partial state of charge – these batteries can sit indefinitely at partial, or even no state of charge, without irreversible capacity loss like lead acid batteries.
In June 2016, Aquion Energy has introduced the Aspen 24S, a 24-volt version of its award-winning Aqueous Hybrid Ion (AHI) battery.
The new product is designed for energy-intensive applications that use solar panels, such as off-grid solar-powered LED lighting, as well as small pumps and motors. It is also an ideal drop-in replacement for existing systems using 24-volt lead-acid batteries.
Dubai Electricity and Water Authority has announced a comprehensive plan to significantly increase investment in renewable energy projects.
Announcing its annual budget, the Dubai Electricity and Water Authority (DEWA) stated that it will float tenders worth Dh 27 billion (US$7.35 billion) to set up renewable energy projects. The projects are expected to be commissioned through the independent power producers model.
The Authority did not give any details for the likely renewable energy projects that will be pursued. However, among the largest tenders would be for the next phase of the Mohammed bin Rashid Al Maktoum solar power park.
The first large phase of the solar park, with 200 MW capacity, is being constructed by ACWA Power-led consortium. Another tender for 800 MW capacity has attracted interest from global project developers, and the winner of this phase is expected to be announced soon.
DEWA plans to increase the total capacity of the solar park to 3 GW by 2030, so a number of tenders are expected to be issued. The Authority is expected to develop other renewable energy and clean energy projects.
Dubai has set a target to increase the share of renewable energy in its total energy mix to 7% by 2020. The medium-term and long-term targets for renewable energy share are 25% by 2030 and 75% by 2050.