The hypnotic video footage of millions of black plastic “shade balls” rolling into Los Angeles’s reservoirs has mesmerized the world.
It has also sparked a tidal wave of interest in NeoTop Water Systems, an Israeli startup that has scientifically proven that its patented spheres – designed to be job-specific as opposed to the balls California has so far deployed — decrease evaporation of reservoirs, save precious water and reduce growth of algae to preserve a healthy ecosystem.
The Israeli company’s second-generation product is set to be unveiled at the upcoming WATEC Israel 2015 international exhibition of water technologies, October 13-15 at the Tel Aviv Fairgrounds.
“Our product is very different from other solutions,” Noam Levy, CEO NeoTop Water Systems (formerly Top-It-Up), tells ISRAEL21c. “Our spheres have a sophisticated design and they’re the only system now on the market that cools the water.”
Like the LA shade balls, the Israeli floating spheres block sunlight. But thanks to their ability to act as mini cooling towers, they also reduce surface temperatures, algae and evaporation by up to 94 percent.
And that figure is not just a random guess. NeoTop’s balls have undergone extensive testing by Mekorot, Israel’s national water company. The Israeli team has been researching and developing the innovative product since 2011.
Zeev Birger, founder and CTO of the company, won the Israeli Prime Minister’s Award for Entrepreneurship & Innovation in 2014 for his TopUp Ball System.
“We are just starting to market in Israel, the UK, Australia and the US,” says Levy. “In the US market, we’re aiming mainly for California.”
“In Los Angeles, they’re using 100 balls per square meter. NeoTop needs just 10 balls per square meter. This cuts costs in assembly,” says CEO Levy.
Up to 50 percent of water in reservoirs is lost to evaporation, according to NeoTop’s research. But the increase in water salinity that results from evaporation can be even more troublesome because the water can become unusable. Not to mention the growth of harmful algae, which clog pipes.
NeoTop balls are bigger than the shade balls now in the headlines and do not need to be filled with water ahead of time. In fact, the use of the reservoir’s water is a crucial part of the Israeli solution to better water quality.
The Top-Up ball has special rims and an inner float, as well as holes around its equator, at the top and bottom. The balls are tipped into a reservoir and fill up exactly half way – half the sphere is submerged and the other half is in the air.
The key here is a continual evaporation-condensation process: Water from the bottom half of the ball evaporates into the top half of the sphere and condenses, dripping water back to the bottom half.
There is no standing water in these spheres, as new water is constantly entering. This process creates thermal distillation, which kills parasites and enhances water quality.
Meanwhile, the spheres also lower water temperatures by up to six degrees Celsius. Here’s how it works: Air in the top half of the sphere is released from the upper holes and creates a difference in pressure between the two halves, allowing for a flow of cooler air from the side openings. The cooling effect reduces the temperature of the water in the ball and the water in the reservoir.
Levy says the water in the submerged part of the NeoTop sphere also acts as counterweight against wind.
The Ramat Hasharon company’s technology is also being used as a solution for the aquaculture industry for fish farming, aquariums and microalgae cultivation. The bobbing balls protect fish from birds.
In addition to drought problems, open-water reservoirs and ponds near airports are known as significant hazards to airplanes. Aviation authorities everywhere require these water sources to be covered to help eliminate bird strikes and ensure flight safety.
Bird strikes cause some $400 million in annual damages to aircraft in the US and nearly $1.2 billion to commercial aircraft globally.
The Israeli system has been approved as a bird deterrent by the Israel Air Force and by world-renowned ornithologists.
“We’re launching the second generation of the product and there’s no doubt that it will do the job even better,” says Levy.
For the full Israel21 article, Israel21C.
Check out this interview with the inventor of the NeoTop solution: