At Startup Bazaar: DC Climate Week, Sumit Bhatnagar traces the long arc of building a solar business in a market that took years to arrive
What does it take to build a clean energy business ahead of its time—and sustain it through shifting policy, market skepticism, and technological change? Few in the industry are more qualified to offer a clear-eyed answer than Sumit Bhatnagar, CEO of GreenBrilliance.
At a fireside chat during Startup Bazaar: DC Climate Week, held at the Hopkins Bloomberg Center in Washington, DC, on April 20, the Indian-born entrepreneur offered a candid and wide-ranging look at the industry through the lens of nearly two decades in solar.
Moderated by Rohit Tripathi, principal at VU Capital, the conversation moved from Bhatnagar’s unconventional entrepreneurial journey to the structural challenges facing the renewable energy sector today, including financing, utility relationships, and the rising pressure from data centers.
Tripathi set the tone early, describing Bhatnagar as “the kind of… green entrepreneur that was… ahead of his time in 2007, and sadly he still is ahead of his time in 2026.”
That framing became a thread running through the discussion: why clean energy adoption has lagged its potential—and what it will take to close that gap.
Bhatnagar did not come from the energy sector. His early career was in software and engineering, building products and running a technology business. But frequent travel to Europe in the mid-2000s exposed him to a region already moving ahead on solar adoption.
“Europe was way ahead in the game… and I realized that we in America did not even know how to spell solar,” he said.
That realization led to a dramatic pivot. Around 2007, Bhatnagar sold his software company and went “all in on solar,” building manufacturing capacity overseas while establishing a U.S. presence headquartered in Herndon, Virginia.
At the time, however, the U.S. solar market was virtually nonexistent—not just in adoption, but in infrastructure.
“The challenge was astronomical, because A, the environment did not exist. B, policies did not exist. C, financial models did not exist. Customers did not exist,” he said.
What existed, he noted, was only a “customer thought process”—latent demand that had not yet found a pathway to adoption.
Building conviction without spreadsheets
One of the most striking moments in the conversation came when Tripathi pressed Bhatnagar on how entrepreneurs develop conviction in uncertain markets.
Bhatnagar’s answer rejected the conventional reliance on financial modeling.
“Most important is your gut. If your gut says, got to do it, then just do it,” he said.
He warned against over-reliance on spreadsheets: “The worst thing that you would see is the excel file… excel files may give you a relief when you go to bed, but it will not give you a good night’s sleep.”
Instead, he emphasized clarity about customers—not just end users, but the entire ecosystem around a business.
“In our business… every partner is a customer, every bank we work with is our customer, every sales rep is our customer… even though transaction-wise we pay them,” he said.
This philosophy—closely aligned with what academics describe as stakeholder capitalism—was not learned from textbooks, Bhatnagar said, but from experience and upbringing.
“You cannot buy respect. You’ll have to earn it. It’s as simple as that,” he added.
In the early years, the challenge was not just selling solar—it was explaining it.
“For several years, our sales pitch was less sales pitch. It was more academic pitch,” Bhatnagar said.
His team would spend hours explaining basic concepts: how solar panels generate electricity, how DC converts to AC, and how installations would affect utility bills over time.
The company even funded its first installations to create proof points.
“We had to put in our seed money to actually buy your first customer,” he said, recalling how they installed systems at no cost in exchange for permission to document the work.
From that first foothold, growth came incrementally—“one home at a time”—eventually scaling to thousands of installations.
Despite growing awareness, widespread adoption remained constrained until one key factor changed: financing.
“The biggest turnaround started to come around 2012-2013… when different banks started to come in… with loan products or lease products,” Bhatnagar said.
He drew a distinction between cost and affordability—a theme that resonated throughout the session.
“It’s not about the cost… if it was not affordable there is no way none of those reasons could be satisfied,” he said, comparing solar adoption to car financing.
Once financing structures allowed homeowners to adopt solar with manageable monthly payments, the market began to unlock.
“I won’t say it’s a last mile but it is definitely a big catalyst,” he said.
As GreenBrilliance grew, Bhatnagar resisted the typical startup playbook of rapid expansion.
“My concept of scale up is… a little different. I call it scale in,” he said.
Rather than maximizing volume, he emphasized depth—stronger relationships, better service, and tighter operational alignment.
“If I sell 200 homes a day… I’ll get away from my customers,” he warned.
The company instead focused on building teams, reinforcing culture, and ensuring that growth did not come at the expense of service quality.
“Learning the culture takes time… sometimes you have to unlearn something to learn something,” he said.
The utility bottleneck
No discussion of renewable energy is complete without addressing utilities—and Bhatnagar did not shy away from the tension.
“Our relationship with the utilities is… very interesting,” he said.
Utilities, he noted, still hold structural power, particularly over grid interconnection.
“If they do not interconnect your systems… you would have to find other ways,” he said.
He described scenarios where infrastructure upgrades—such as transformer replacements—can dramatically increase project costs, effectively blocking adoption.
At the same time, he acknowledged that utilities are responding to a challenge they did not anticipate: the rapid growth of distributed renewable energy.
“The vast speed of renewable energy adoption is something that the utility never imagined,” he said.
On government incentives, Bhatnagar offered a counterintuitive view: while helpful, subsidies are not the primary driver of adoption.
“The monies… are good if people can get it but it is not the showstopper,” he said.
He pointed to repeated cycles where incentives were reduced—only to see adoption continue to rise.
“Solar went even higher pace,” he said after one such reduction.
Ultimately, he argued, the core value proposition—long-term savings and energy independence—outweighs short-term incentives.
The data center dilemma
The conversation turned sharply toward one of the most pressing issues in the energy landscape: data centers.
Northern Virginia, where GreenBrilliance is based, has become the epicenter of global data center growth. Bhatnagar expressed strong concerns about the environmental and infrastructural implications.
“Data centers… started to pop up like mushrooms,” he said.
He argued that local governments prioritized revenue over sustainability, creating long-term challenges.
“Residents… will face a lot of environment-related challenges,” including heat and infrastructure strain, he warned.
Data centers, he noted, consume enormous amounts of power and are difficult to integrate with renewable energy solutions due to structural constraints.
This has led to renewed interest in nuclear energy—a path Bhatnagar views skeptically.
“Nuclear energy is cheap… but… decommissioning… is an insane amount of money,” he said.
Understanding the customer
In closing, Bhatnagar returned to what he sees as the central challenge—not policy, not technology, but people.
“The biggest challenge is not the policy… it is your people,” he said.
He emphasized that success depends on aligning products with customer needs, preferences, and behaviors.
“Maybe I need to sell it the way you want to buy it,” he said.
From real-time monitoring apps to flexible financing, the evolution of solar adoption reflects this shift toward customer-centric design.
“You will only do business with people. Nothing else,” he concluded.
A sector still catching up
If there was one takeaway from the session, it was that the clean energy transition is not just a technological or financial challenge—it is a behavioral one.
Bhatnagar entered solar when the market barely existed. Nearly two decades later, the industry has made significant progress, but many of the underlying frictions remain: grid constraints, policy fragmentation, and the constant need to align innovation with human behavior.
As Tripathi noted at the outset, Bhatnagar may still be ahead of his time. The question, as the conversation made clear, is whether the rest of the ecosystem can finally catch up.
This marked the second consecutive year that The American Bazaar hosted Startup Bazaar at DC Climate Week, underscoring its growing role as a platform for conversations at the intersection of innovation and climate. DC Climate Week, which kicked off on Monday, runs through Sunday, bringing together founders, investors, policymakers, and industry leaders for a series of events across the capital.
Samarpita Bhawal is a Social Media and Video Editor at The American Bazaar.
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