Farm Science

The Future of Farming Is Indoors (And That's Not a Bad Thing)

By Sara JohnsonTuesday, July 15, 2025

Five years ago, if you told a traditional farmer that the future of agriculture was happening inside warehouses under LED lights, you would have been laughed out of the room. Today, that conversation looks very different. Controlled environment agriculture has moved from a fringe concept to a serious part of our food system, and the technology driving it has improved faster than almost anyone predicted.

This is the eleventh post in our Farm Science Explained series, and I want to give you an honest assessment of where indoor farming stands right now. Not the venture capital hype. Not the doom-and-gloom criticism. The actual picture.

How Much More Efficient Are Modern LED Grow Lights Compared to a Decade Ago?

The efficiency gains in horticultural LED lighting over the past fifteen years have been staggering. In 2010, the best available LED grow lights produced roughly 1.0 micromoles of photosynthetically active radiation per joule of energy consumed. Today, top-tier fixtures using Samsung LM301H EVO diodes routinely achieve 2.7 to 3.0 micromoles per joule, with some cutting-edge models pushing past 3.2.

That is not an incremental improvement. That is a threefold increase in the amount of usable plant light generated per unit of electricity. The DLC horticultural qualification standard, updated in April 2025, now sets its floor at 2.5 micromoles per joule, a number that would have represented the absolute ceiling just a few years ago.

Why does this matter so much? Because lighting has always been the single biggest energy expense in indoor farming, often accounting for 40 to 60 percent of operating costs. Every improvement in LED efficiency delivers a double benefit: less electricity consumed for lighting and less cooling energy required to remove waste heat. At our farm, the LED upgrades we made in 2024 reduced our electricity consumption by roughly 25 percent while maintaining the same light output for our crops.

What Are the Biggest Challenges Facing Vertical Farms Today?

I am not going to sugarcoat this. The vertical farming industry has had a brutal few years. Plenty Unlimited, which raised nearly 940 million dollars in funding, filed for Chapter 11 bankruptcy in March 2025. Bowery Farming shut down after raising over 700 million. AeroFarms and AppHarvest went through bankruptcy proceedings in 2023. By mid-2025, more than a dozen CEA companies had filed for bankruptcy.

The number one challenge is not technology. It is economics. Labor costs remain the single largest operational expense for most indoor farms, often exceeding energy costs. Finding and retaining workers who can manage highly technical growing systems is difficult and expensive. Outdoor farming, for all its challenges, remains significantly cheaper on a per-unit basis for many crops.

The second major challenge is the gap between venture capital expectations and agricultural reality. Investors who funded these companies expected software-company growth rates from an industry that produces perishable goods with thin margins. When the growth did not materialize fast enough, the funding dried up.

But here is what the bankruptcy headlines miss: the technology works. The companies that failed mostly failed on business model and scaling decisions, not because indoor farming does not produce good food efficiently. Smaller, regional operations focused on local distribution and realistic growth are doing fine. That includes farms like ours.

How Are AI and Automation Changing Indoor Farming?

Automation and artificial intelligence represent the most promising path to solving the labor cost problem. Current AI systems can monitor plant health through camera-based analysis, adjust nutrient levels in real time, manage climate controls with far more precision than human operators, and predict harvest timing within hours.

The farms that are surviving and thriving right now are investing heavily in automation. Robotic seeding and harvesting systems are becoming more affordable and reliable. Environmental monitoring through IoT sensors has matured to the point where a single operator can manage growing conditions across tens of thousands of square feet.

We are not fully automated at Wholly Water Farms. We are a small operation, and I still like having my hands in the process. But we use sensor-based monitoring for our water quality, pH levels, and environmental conditions. The data these systems generate helps us make better decisions every single day.

Why Does Florida Specifically Need Indoor Farming?

Florida makes the case for controlled environment agriculture better than almost any other state. In 2024, three hurricanes made landfall in Florida, inflicting between 402 million and 975.8 million dollars in agricultural production losses, according to University of Florida researchers. Hurricane Milton alone caused an estimated 190 to 642 million dollars in damage to crops including peppers, tomatoes, nursery products, and strawberries.

That comes on top of Hurricane Idalia in 2023 and Hurricane Ian in 2022. Some Florida counties have now experienced hurricane conditions in four consecutive years. The 2025 growing season started with one of the worst droughts in 25 years, with 100 percent of the state experiencing some level of drought and more than 75 percent in extreme drought.

Indoor farms do not get hit by hurricanes. They do not get flooded. They do not lose crops to drought. Our growing systems at Wholly Water Farms operated continuously through every storm in 2024 without losing a single tray of microgreens. That kind of resilience has real value, even if it does not show up on a simple cost-per-pound comparison with field agriculture.

What About the Energy Use Criticism?

The most legitimate criticism of indoor farming is energy consumption. Growing food under artificial lights will always use more energy than growing it under the sun. That is simply physics, and anyone who tells you otherwise is selling something.

But the conversation is more nuanced than critics usually acknowledge. First, LED efficiency improvements have cut energy use per unit of production by more than half in the past decade, and gains are continuing. Second, indoor farms can be powered by renewable energy. Solar panels on a warehouse roof can offset a significant portion of growing energy, and several large-scale operations are now operating on 100 percent renewable power. Third, when you factor in the energy embedded in long-distance transportation of field-grown produce, the gap narrows considerably. That head of lettuce grown in Arizona and trucked to Florida has a significant carbon footprint that does not appear on the label.

The future of indoor farming is not about replacing all field agriculture. That would be neither practical nor desirable. It is about building a complementary system that provides climate-resilient, local food production for crops where the economics work. Leafy greens, herbs, microgreens, and specialty crops are where CEA makes sense today. As the technology continues to improve and energy costs continue to fall, that list will grow.

I am optimistic about where this industry is headed, but I am optimistic with my eyes open. The hype cycle was real, and a lot of money was wasted on oversized ambitions. The farms that will define the next decade of indoor agriculture are the ones building sustainable businesses at a human scale, not chasing unicorn valuations. That is the kind of farming I believe in.

Frequently Asked Questions

Is vertical farming profitable in 2025?

Some vertical farms are profitable, particularly smaller regional operations focused on high-value crops like microgreens, herbs, and specialty lettuce. Large-scale operations have struggled with profitability due to high capital expenditure and labor costs. The key factors are crop selection, local market access, and operational efficiency.

What crops grow best in controlled environment agriculture?

Leafy greens, herbs, microgreens, and strawberries are currently the most economically viable crops for indoor growing. These crops have short growth cycles, high per-pound value, and strong local demand. Commodity crops like corn and wheat are not practical for indoor production.

How much does it cost to start a small indoor farm?

A small commercial microgreen or lettuce operation can start for 10,000 to 50,000 dollars depending on scale and equipment choices. Container farm systems range from 80,000 to 150,000 dollars. Large vertical farm buildouts can cost millions. Starting small and scaling based on demand is the approach that most successful operators take.

Can indoor farms use renewable energy?

Yes. Many indoor farms are integrating solar panels, and some operate on 100 percent renewable power. LED efficiency improvements have reduced energy demand significantly, making renewable energy a more practical option than it was even five years ago.

Why have so many vertical farming companies gone bankrupt?

Most failures stem from business model issues rather than technology problems. Companies raised massive amounts of venture capital and attempted to scale too quickly before establishing profitable unit economics. High labor costs, expensive real estate, and thin margins on produce made it difficult to generate returns that matched investor expectations.

← Back to Blog