The Solar Energy Industries Association (SEIA) has released a new report outlining the industry’s priorities for strengthening cybersecurity while expanding domestic manufacturing of solar and energy storage technology, a dual-track strategy that arrives just as the United States has tied as the world’s second-largest manufacturer of inverters. This convergence matters now because the U.S. grid is simultaneously becoming more dependent on distributed solar and storage assets – each one a potential entry point for cyber intrusion – while the federal government pushes to reshore the supply chain for those very components. The report signals that the industry is moving beyond treating cybersecurity as a compliance checkbox and toward a posture where secure-by-design hardware and software are prerequisites for the continued, rapid deployment of clean energy.
The Strategic Convergence of Supply Chain Security and Cyber Resilience
The SEIA report’s core premise is that cybersecurity and domestic manufacturing are no longer separate policy tracks but two sides of the same coin. For years, the U.S. solar industry has relied heavily on imported inverters, primarily from China, which dominates global production with an estimated 70-80% market share. The fact that the U.S. has now tied as the world’s second-largest inverter manufacturer is a significant shift from just a few years ago, when domestic production was minimal. This rise is largely attributable to the manufacturing incentives in the Inflation Reduction Act, which have spurred new factory announcements across the country, particularly in the Southeast and Midwest.
The cybersecurity dimension adds a layer of urgency to this reshoring effort. Inverters are the “brains” of a solar and storage system, managing power conversion, grid synchronization, and communications with the broader network. A compromised inverter can not only disable a single installation but potentially be used to destabilize grid operations at scale if exploited through coordinated attacks. The report’s priorities are expected to address several key areas: secure supply chain practices, zero-trust architecture principles, standardized cybersecurity testing and certification, and improved incident response coordination between manufacturers, system operators, and federal agencies.
This is not an abstract concern. The U.S. Department of Energy and the Cybersecurity and Infrastructure Security Agency (CISA) have repeatedly flagged the energy sector as a prime target for state-sponsored cyber actors. Distributed energy resources (DERs) – of which solar and storage are the fastest-growing categories – present a particularly challenging attack surface because they are numerous, geographically dispersed, and operated by a wide range of entities with varying security postures. Unlike a centralized power plant that can be hardened with a single security perimeter, a utility territory might have thousands of rooftop solar systems and dozens of utility-scale plants, each with its own communications links to grid operators.
What the Inverter Manufacturing Milestone Actually Means for Grid Security
The inverter manufacturing milestone is more than a supply chain victory lap; it has direct implications for how cybersecurity can be implemented. When inverters are designed and built domestically, there is greater visibility into the firmware, supply chain provenance, and testing procedures. Imported inverters, by contrast, can present a “black box” problem where the security posture of the device is difficult to verify, and where supply chain interdependencies may introduce vulnerabilities that are hard to trace. Domestic manufacturing also facilitates faster patching and updates, as security researchers and manufacturers can collaborate more closely without the friction of international logistics and regulatory hurdles.
That said, domestic manufacturing alone does not guarantee cybersecurity. The report is expected to emphasize that the industry needs to adopt security-by-design principles from the outset, rather than retrofitting security onto products after deployment. This includes secure boot processes, encrypted communications, regular security updates, and the ability to segment devices on networks so that a compromised inverter cannot be used as a foothold to access broader utility systems. The cost implications are notable: implementing robust cybersecurity measures across a manufacturing line can add roughly 5-10% to the bill of materials for an inverter, but the cost of a successful cyberattack on grid infrastructure could run into the hundreds of millions of dollars in disruption, to say nothing of the safety and national security consequences.
The report also arrives amid a broader federal push to secure the energy supply chain. The Department of Energy has established several programs aimed at hardening grid infrastructure against cyber threats, and the Federal Energy Regulatory Commission (FERC) has been updating reliability standards to incorporate inverter-based resource requirements. SEIA’s report is positioned to influence these regulatory processes by providing a unified industry voice on what is practical and achievable from a manufacturer’s perspective, as opposed to what regulators might mandate without full industry input.
Cross-Sector Implications: The Grid of the Future Depends on Trusted Devices at Scale
The cybersecurity of solar and storage components intersects with another major trend: the rapid digitalization of the grid itself. As utilities deploy advanced distribution management systems (ADMS) and distributed energy resource management systems (DERMS), they are creating a two-way communications pathway between grid operators and millions of individual DERs. This connectivity is essential for managing a grid with high renewable penetration, enabling services like voltage support, frequency regulation, and demand response. But it also expands the attack surface dramatically, turning what were once isolated, passive devices into active, networked endpoints.
By comparison, the telecommunications industry has already grappled with this challenge: when base stations and customer premises equipment became software-defined and network-connected, the industry had to develop rigorous security standards, supply chain vetting, and over-the-air update mechanisms. The solar and storage industry is now at a similar inflection point, and the SEIA report appears to be an attempt to get ahead of the curve rather than react to a major incident. If the industry can establish robust cybersecurity baselines now, it can avoid the costly and disruptive retrofits that other industries have had to undertake after breaches.
There is also a geopolitical dimension to consider. As the U.S. competes with China for leadership in clean energy technology, the ability to offer “trusted” solar and storage products – manufactured domestically with verifiable security – could become a competitive differentiator in export markets. Allies in Europe, the Indo-Pacific, and elsewhere are increasingly wary of relying on Chinese-made grid components, and a U.S. industry that can certify its products as secure and transparent could capture significant market share in these regions. The SEIA report, by aligning cybersecurity with domestic manufacturing, effectively positions U.S. products as the “secure choice” in a global market where trust is becoming a premium attribute.
Who This Affects
- Utility planners and grid operators: Expect to see new procurement requirements and vendor questionnaires that demand verifiable cybersecurity certifications for inverters and storage systems. Begin reviewing existing DER interconnection agreements to assess whether they contain adequate security provisions, and consider piloting zero-trust network segmentation for DER communications.
- Solar and storage developers: The report’s priorities will likely translate into more stringent equipment selection criteria. Developers who proactively specify secure-by-design inverters and storage systems from domestic manufacturers will be better positioned to win projects, particularly those serving utilities or federal facilities with strict security requirements.
- Policy analysts and regulators: The SEIA report provides a baseline for what the industry considers achievable in cybersecurity standards. Use it as a reference point when evaluating proposed FERC reliability standards or state-level interconnection rules, and watch for gaps between what the industry proposes and what regulators ultimately mandate.
- Investors and financial analysts: Cybersecurity posture is becoming a material factor in project risk assessment. Companies with demonstrated cybersecurity practices – and domestic supply chains that enable those practices – may command a valuation premium, while those reliant on opaque imported components could face increasing due diligence scrutiny from lenders and insurers.
What to Watch Next
- The full report contents: SEIA has released a summary, but the full report is expected to contain specific recommendations and timelines. Look for concrete milestones, such as proposed certification standards or pilot programs, that can be tracked over the next 12-24 months.
- Manufacturer adoption: Watch whether major U.S. inverter manufacturers publicly commit to the report’s cybersecurity recommendations. Adoption by the top three domestic producers would signal that the standards are commercially viable, while resistance would indicate friction between security goals and cost pressures.
- Regulatory response: Monitor whether FERC or NERC incorporates any of the report’s recommendations into updated reliability standards for inverter-based resources. The speed and stringency of regulatory adoption will determine whether cybersecurity becomes a minimum bar or a competitive differentiator.
- Supply chain data points: Track quarterly manufacturing capacity announcements and inverter shipment data from the U.S. Energy Information Administration to see whether the “tied for second” milestone translates into sustained growth, or whether it was a temporary peak driven by IRA incentives that may taper off.
Bottom Line
The SEIA report marks a maturation point for the U.S. solar and storage industry: it is no longer enough to build more domestic capacity; that capacity must be demonstrably trustworthy in a digital age where grid-connected devices are both critical infrastructure and potential attack vectors. The industry’s willingness to self-regulate through a proactive cybersecurity framework could forestall more prescriptive government mandates, while also giving U.S. manufacturers a distinct market advantage in a world increasingly concerned about the security of imported energy technology.
Read the full report at CleanTechnica.
Note: facts and figures attributed above to reflect that outlet's original reporting. Broader context, cross-sector connections, and forward-looking scenarios reflect independent analysis by our editorial team.
About this article: Drafted by Energy Ai with AI-assisted research and writing based on public reporting, then reviewed under our editorial process before publication.
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