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Farming In The Desert: Are Vertical Farms The Solution To Saving Water?
When I told people I was going to grow tomatoes in the desert, they thought I was crazy," Sky Kurtz, founder of Pure Harvest Smart Farms, told DW
Jul. 23, 2020
By Isabelle Gerretsen"
When I told people I was going to grow tomatoes in the desert, they thought I was crazy," Sky Kurtz, founder of Pure Harvest Smart Farms, told DW.
With just an average 12 days of rain a year, less than 1% arable land, a desert location, and an 80% import rate for food, the United Arab Emirates (UAE) seems an unfavorable place to set up a farm.
Kurtz is one of several entrepreneurs using high-tech farming techniques to boost crop production in the Emirates. Pure Harvest built the first climate-controlled greenhouse in Abu Dhabi in 2017.
Prompted by arid conditions and a desire for greater food security, the country is investing millions in technologies — such as vertical farming — that could make it an unlikely agricultural pioneer.
Vertical farms can grow a rich variety of different crops by stacking them in layers under LED lighting in climate-controlled greenhouses and watering them with mist or drip systems. The process is tailored to each crop's specific needs, resulting in high-yield, year-round harvests."
It takes 30 to 40 days to grow leafy greens out in the field. We can grow that same crop in 10 to 12 days," says Marc Oshima, co-founder of Aerofarms. The company received funding from the Abu Dhabi Investment Office to build the capital's largest indoor vertical farm, with 800 different crops, by 2021.
Water Scarcity and Fossil-Fuel Reliance
The technology uses minimal land and up to 95% less water than conventional agriculture.
The hydroponics system places the plants' roots directly into a water-based and nutrient-rich solution instead of soil. This "closed-loop" system captures and recirculates all the water, rather than allowing it to drain away — useful for a country like the UAE suffering from extremely high water stress.
Globally, agriculture accounts for 70% of freshwater withdrawals, and UAE is extracting groundwater faster than it can be replenished, according to the International Center for Biosaline Agriculture (ICBA)."
Water is very expensive over in the UAE, but energy is cheap as it is subsidized," says Jan Westra, a strategic business developer at Priva, a company providing technology to vertical farms.
The artificially controlled environment is energy-intensive because the air conditioning and LED lights need a constant source of electricity.
This bringing forth of life in the desert could come at a high environmental cost. Most of that energy comes from carbon-emitting fossil fuels, even as the Middle Eastern country feel the effects of climate change.
By 2050 Abu Dhabi's average temperature is predicted to increase by around 2.5°C (36.5 F) in a business-as-usual scenario. Over the next 70 years, patterns of rainfall are also expected to change.
Integrating Renewable Energy
Although Pure Harvest is building a solar-powered farm in neighboring Saudi Arabia, its UAE operations get electricity from the carbon-intensive national grid.
Investing more in renewables "is a goal of ours," Kurtz told DW. He said the company has not set a clean energy target but is working on various green power projects, including a plan to integrate solar power generated in UAE into its operations.
However, Willem van der Schans, a researcher specializing in short supply chains at Wageningen University in the Netherlands, says sustainability and clean energy should be "inherent in the technology and included in plans when starting a vertical farm."
He argues that many vertical farming companies are not sustainable in terms of energy as they still view clean power as an optional "add-on."
Ismahane Elouafi, director-general of the government-funded ICBA in Abu Dhabi, acknowledges that vertical farming has some way to go before achieving "real sustainability," but she believes the innovations are "promising."
Improved battery storage, increasingly efficient LED lights, and cheaper solar panels will help, she adds.
Local Solutions
By 2050, the UAE government wants to generate almost half its energy from renewable sources.
Fred Ruijgt, a vertical farming specialist at Priva, argues that it's important to factor transport and refrigeration into the energy equation. Vertical farming uses more energy to grow crops than traditional agriculture, but because crops are grown locally, they do not have to be transported by air, sea, or truck over long distances."
The energy-saving is difficult to calculate exactly, but the advantages of locally grown crops are huge," he says, adding that those grown in vertical farms not only use less water and pesticides but that they also have a longer shelf life due to minimal transportation time.
Food Security and Coronavirus
In 2018, the UAE set out its vision to become a hub for high-tech local food production.
Companies and investors have flocked to the region, attracted by the 0% corporate tax rate, low labor costs, and cheap energy. With their help, the UAE aims to reduce its reliance on imports and make its food system more resilient to shocks like climate change and pandemics.
Oshima from Aerofarms says the coronavirus pandemic has brought "greater appreciation of how fragile the supply chain is and raised questions about food safety and security."
When the UAE went into lockdown in April, imported supplies of perishable goods like vegetables fell and business boomed for local suppliers.
ICBA's Elouafi said they have helped keep the UAE well-stocked during the pandemic."With the help of local food production and adequate imports, there has been absolutely no shortage of food in the UAE," Elouafi told DW.
Climate change, however, poses an altogether more complex threat to the country in the long-term. Given climate change's likely impact on food production, she says vertical farming has shown it is "an economically viable proposition even with harsh climatic conditions."
Reposted with permission from Deutsche Welle.
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Controlled Environment Agriculture Open Data (CEAOD) Project
The use of Machine Learning and Artificial Intelligence techniques could provide CEA researchers and commercial growers an opportunity to optimize crop production efficiency and unveil new methods to improve production yield
Date: August 4, 2020
Time: 2 p.m. - 3 p.m. EDT
Presented by: Erico Mattos, GLASE Director, and Kenneth Tran, Koidra
Click Here to Register
Controlled Environment Agriculture (CEA) is a data-driven scientific discipline. In CEA operations all the environmental parameters are monitored and controlled to provide optimal conditions for crop growth. Recent technological advancements made the use of sensors and controls more accessible to CEA growers allowing them to precisely adjust these parameters.
The use of Machine Learning and Artificial Intelligence techniques could provide CEA researchers and commercial growers an opportunity to optimize crop production efficiency and unveil new methods to improve production yield. However, there is a lack of a centralized repository and a standard methodology for data sharing.
Join GLASE Director Erico Mattos and Koidra CEO Kenneth Tran on this GLASE Webinar to learn about the Controlled Environment Agriculture Open Data (CEAOD) project. This initiative aims to promote data sharing to accelerate Controlled Environment Agriculture (CEA) research through the establishment of a free centralized platform for the CEA community. Researchers and commercial growers are welcome to join and learn more about it.
Kenneth Tran was part of the winning team at the first International Autonomous Greenhouse Challenge held at Wageningen University in 2018. The team defeated four other international teams, consisting of experts in the field of Artificial Intelligence (AI) and horticulture. Erico Mattos is working with Cornell University and Rensselaer Polytechnic Institute Researchers to develop a guideline for data collection and upload to the CEAOD project.
Exelon Invests In Reducing Indoor Ag Energy Needs And Costs With GrowFlux
“GrowFlux specifically can increase yields in indoor farming making it more economical for city centers and where it can serve often underserved communities fresh and healthier foods.”
June 11, 2020
A welcome impact from the Covid-19 pandemic has been clearer skies and returning wildlife to usually polluted areas after industry, transport systems, and more shut down across the world, reducing carbon emissions.
Today marks two months since the UK’s electricity industry last used coal; the longest period since the Industrial Revolution began more than 200 years ago and well beyond the 18 days, 6 hours and 10 minutes record which was set in June last year, according to the BBC. Renewable and nuclear energy have stepped in to make up the shortfall in a trend that’s been particularly pronounced in the US where renewables supplied more energy than coal for the first time ever this year.
Agriculture’s impact on the environment, particularly surrounding its carbon emissions, has been flung into the spotlight in recent years, particularly by alternative meat and animal products startups keen to promote the environmental credentials of their plant-based or cultivated alternatives. But of course, even a plant-based diet has carbon emissions associated with it, from the fertilizer and pesticides applied in the production process, to its transport to end markets. Plant-based products and diets are also not always affordable or accessible to certain demographics who may live in food deserts.
Indoor agriculture has long been a potential solution to food deserts and many of the carbon emissions related to crop production, making it an interesting prospect for city planners and city-based corporates. But the energy consumption associated with the production system, specifically related to lighting and climate control systems, has left much to be desired; not least because the costs involved have stunted the growth of viable business models.
Further, energy demand from these indoor farms is only set to increase as the need for more localized production in certain regions across the world has been highlighted during the Covid-19’s disruption of traditional supply chains; Singapore is a case in point.
“With over 8.6 terrawatt hours of energy consumed by horticultural lighting systems in emerging indoor farms and greenhouses in the US in 2019, utility companies are hard-pressed for rapidly scalable energy management tools that meet the needs of growers,” says Eric Eisele, CEO of GrowFlux. GrowFlux is an agtech startup focused on smart lighting controls for the horticulture industry working to significantly reduce the cost of lighting automation and its energy needs.
GrowFlux, a Philadelphia-based startup, was therefore immediately of interest to Exelon, the nuclear energy provider that claims to have the largest number of electricity and natural gas customers in the US after it launched a new startup incubator late last year aimed at reducing greenhouse gas emissions and bolstering urban centers. GrowFlux is part of the first cohort of Exelon’s $20 million Climate Change Investment Initiative (2c2i) and recently received $100,000 in cash as well as in-kind services such as legal and advisory as part of the program.
“When we think about food & ag, we think about there being a mitigation and adaptation benefit from helping to advance the indoor ag industry for food. [By growing food close to city centers] there’s a climate change mitigation benefit from the decreased emissions related to traditional, carbon-intensive farming methods of harvesting, planting and transporting food from rural areas to cities,” Exelon Corp SVP Chris Gould told AFN. Indoor ag, where farming environments can be completely controlled, is also a good mechanism to adapt to climate change, he added.
“GrowFlux specifically can increase yields in indoor farming making it more economical for city centers and where it can serve often underserved communities fresh and healthier foods.”
GrowFlux says its technology allows even the smallest farms and upstarts to build advanced controlled environment agriculture automation without millions in venture funding. Its approach is different from the traditional high-level objective of optimizing climate control towards a constant set point; instead it aims to respond more dynamically to crops’ needs via distributed sensor data and cultivar specific crop models. “Crop responsive environmental controls have the potential to result in tremendous resource efficiency, creating opportunities to grow new crops in greenhouses, reducing the operating cost of existing CEA, and reducing the capital costs associated with CEA,” reads the company website.
“We reduce cost with cloud-based control (as opposed to cloud-connected control), which is new to the industry. This strategy is unique from our competition, which are essentially boutique engineering firms that do a full range of automation services using on-site controls that are slow to scale and come at a significantly higher cost,” added Eisele.
2c2i is a partnership between Exelon and its foundation and involves $10 million in funding from the foundation and $10 million in-kind contribution of pro-bono services from the corporation, such as mentorship and access to the company’s venture capital and R&D departments.
“Our partnership with Exelon Foundation will help GrowFlux advance its energy savings and energy management solutions, and allow our customers to drive down their operating costs and carbon footprint associated with greenhouse and indoor agriculture,” said Eisele about the investment. “We believe their guidance on energy management strategy is just as valuable, if not more valuable than the cash.”
2c2i is focused on innovations that will positively impact the cities in which Exelon operates, including Atlantic City, Chicago, Baltimore, Philadelphia, Washington, D.C., and Wilmington. Innovations must also have the potential to mitigate greenhouse gas emissions; boost the resiliency of urban infrastructure (e.g., the power grid, transportation systems, buildings, vacant land) against flood, stormwater, and rising temperatures; help cities, businesses and communities adapt to climate change; or help achieve a state or city’s specific sustainability and climate goals. External consultant Freshwater Advisors selected a shortlist to pitch in front of the Exelon team.
“We also consider and have selected startups from outside of our cities, but in that regard we ask them to have a line of sight on one of our cities, with hope of attracting them to region to set up an office,” said Gould.
What's In Store For The Horticulture Industries After COVID-19?
Mariska Dreschler (GreenTech) and Annie van de Riet (AVAG, Association of the Dutch greenhouse construction and technology industry), discuss how the coronavirus pandemic is affecting the greenhouse sector, and what is the outlook for the industry.
The current status of the several horticulture industries and EU projects
How long will we feel the consequences in the greenhouse industries
What measures should be taken now and in the future
Where do the opportunities lie for the horticulture industries
How are the chains affected and how will they need to change
For more information:
GreenTech
www.greentech.nl
By Horti Daily | May 5, 2020