When everyone is involved, but nobody truly owns the outcome

We recently became involved with a commercial solar and battery installation on a public building. What we found is a case study in why the renewable energy industry needs to have a serious conversation about accountability.

This was not simply a failed component. It was not one broken inverter. It was not a straightforward installation defect that somebody could identify, replace and close out. It was a chain of problems involving system design, battery control, monitoring, metering, installer responsibility, manufacturer involvement, export arrangements, administration and long-term support.

And sitting in the middle of all of it was a building manager — someone expected to manage a building, not become an expert in solar engineering, battery control systems, metering regulations, DNO applications, export tariffs, legacy Feed-in Tariff arrangements and contractual disputes. Yet that is effectively what happened. Years later, elements of the situation are still being resolved.

That should concern everyone in the renewable energy industry. Because if we are serious about putting solar and battery storage on schools, community buildings, businesses, public estates and commercial properties across the country, we need to answer one deceptively simple question: who is ultimately accountable for making sure these systems actually deliver the outcome the client paid for?

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When Three Battery Systems Start Fighting Each Other

The technical problem at this site was extraordinary. Multiple battery systems had been installed, but rather than operating together as one coordinated energy system, the control and data architecture appeared to result in the systems effectively working against one another. One system would respond, another would react. Power would be pulled, then pushed. Charging and discharging behaviour could occur rapidly as the systems responded to what they believed was happening electrically.

The result was not intelligent energy management. It was conflict.

Batteries repeatedly charging and discharging generate losses — energy conversion is never 100% efficient, and some of that energy becomes heat. In this case, the batteries were becoming extremely hot. Expensive energy-storage assets were, in effect, behaving partly like very expensive radiators.

That heat represents something important: wasted energy. But it can also represent unnecessary cycling, additional stress on equipment and potentially accelerated degradation. A battery should be an energy asset. If incorrectly designed, configured or controlled, it can become an energy liability.

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The Financial Damage Goes Far Beyond the Electricity Bill

When a commercial battery system behaves incorrectly, the financial consequences can accumulate in several directions simultaneously. There can be unnecessary grid import, conversion losses, lost self-consumption savings, lost export revenue, excessive battery cycling, accelerated degradation, reduced battery life, replacement costs, engineer call-outs, monitoring costs, administrative costs, management time, legal costs and opportunity costs.

In this case, the client lost thousands of pounds in potential savings. There were also significant costs associated with the battery systems themselves and the process of trying to understand, rectify and ultimately replace problematic equipment.

But perhaps the most damaging cost is harder to put on a spreadsheet. Time. Years of it — years of emails, years of chasing, years of different organisations being contacted, years of trying to establish who is responsible for what. That is not how renewable energy infrastructure should work.

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The Building Manager Became the Accidental Energy Manager

One of the most important lessons from this case has almost nothing to do with batteries. It is about people.

The responsibility for navigating much of this situation effectively landed with the building manager. But the building manager was not a solar specialist, a battery controls engineer, a metering specialist, or an export tariff expert. Yet he was left trying to coordinate solar monitoring, battery monitoring, metering, paperwork, DNO requirements, export arrangements, Feed-in Tariff issues, installers, manufacturers, suppliers and contractors.

Think about that. We install increasingly sophisticated energy infrastructure into buildings and then, too often, assume somebody on site will somehow know how to manage the entire ecosystem. That assumption is dangerous. A building manager may be responsible for heating, maintenance, fire safety, contractors, compliance, occupants, budgets and a hundred other things. They should not suddenly become the default systems integrator because everyone else has finished their individual piece of work.

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The Feed-in Tariff Opportunity Was Missed

Administrative failures can be just as expensive as technical failures. In this case, issues around the project contributed to the client missing an opportunity connected with the historic Feed-in Tariff framework — potentially a long-term financial consequence. The Feed-in Tariff scheme is now closed to new applicants, so once certain historic opportunities and deadlines passed, they could not simply be recreated later.

That raises another accountability question. When a renewable energy system is installed, who owns the responsibility for ensuring all the financial and regulatory pieces are completed? Is it the installer, the client, the consultant, the building manager, the energy supplier, or the metering company? If nobody explicitly owns it, the answer in practice becomes: whoever eventually notices. And by then, it may be too late.

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Six Years Later — And Export Is Still an Issue

Export is another area where the gap between installing solar and actually operating solar becomes painfully obvious. Generating electricity is only one part of the equation. What happens to surplus generation? Is it measured correctly? Is export properly registered? Is the customer on an appropriate export arrangement? Are the meters correct? Is the paperwork complete?

At this site, years after the original project, export arrangements have still been part of an ongoing problem. That means a renewable asset can physically generate electricity while failing to achieve the financial model that helped justify its installation. That distinction matters enormously: technical completion is not the same as commercial completion.

A solar installation should not be considered genuinely complete merely because panels are producing electricity. The project should also have the necessary metering, monitoring, permissions, registrations, customer access and commercial arrangements in place. Otherwise, we have installed equipment. We have not necessarily delivered the project.

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Metering Cannot Be an Afterthought

Metering sounds boring. Until it goes wrong. Then it becomes one of the most important components in the entire energy system.

Solar generation, import, export, battery charging, battery discharging, building consumption, financial settlement and performance verification all depend, directly or indirectly, on accurate measurement and correct configuration. In this case, metering issues have remained unresolved for an extraordinary period. That should not be possible in a mature energy market.

A project can contain some of the most advanced renewable technology available and still fail commercially because a meter, registration or data pathway has not been correctly completed. The glamorous part of renewable energy is the solar panel. The part that often determines whether somebody actually gets paid correctly is the meter. We need to respect both.

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Manufacturer Responsibility: Specification Matters

Manufacturers have an important role in complex commercial installations. If multiple battery systems are being deployed together, questions must be answered before installation. Can these systems operate correctly in parallel? How will they communicate? What measures grid import and export? Which device is the master controller? How are conflicting control signals prevented? What happens if communications fail? How is the system commissioned, and what monitoring confirms correct operation?

If a system architecture is specified incorrectly at the beginning, an installer may inherit a design that is extremely difficult — or potentially impossible — to make operate as intended without redesign. That does not remove installer responsibility. But it demonstrates why accountability must exist across the entire chain: specification, design, installation, commissioning, monitoring, operation. Every link matters.

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Installer Responsibility: "It Turns On" Is Not Commissioning

A commercial battery system should not be considered successfully commissioned simply because the equipment powers up. Commissioning should prove behaviour. What happens when solar generation exceeds building demand? What happens when demand exceeds generation? What happens when all batteries are available, and what happens at maximum and minimum state of charge? What happens when communication is interrupted? Do multiple systems respond correctly together, and does monitoring data match physical measurements? Is the control logic stable?

A commercial system needs to be tested as a system — not simply as a collection of products. This is particularly important when multiple manufacturers, controllers, meters and battery systems are involved. Integration is where some of the most expensive failures hide.

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What Happens When Fixing the Problem Could Destroy the Installer?

This case exposed another deeply uncomfortable problem. At one stage, the potential scale of a claim against the original solar company was considered so significant that pursuing the company aggressively could potentially have threatened the survival of the business. Advice received during the process raised the practical question of whether pursuing that route would actually produce the best outcome.

Think about the position that leaves a client in. If you pursue the installer fully, the installer may fail — and if the installer fails, what happens to the claim, the warranties, other customers, ongoing support? But if you do not pursue the installer, who absorbs the loss? The client? That is not a healthy mechanism for consumer or commercial protection.

It suggests a structural question for the industry: are the insurance, warranty and financial-protection mechanisms surrounding renewable installations strong enough for the scale and complexity of systems now being installed? As installations become larger and more sophisticated, the potential liability grows. A small installer can potentially install systems whose lifetime value and consequential financial exposure far exceed the installer's own balance sheet. That mismatch deserves serious attention.

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Councillors, Councils and Legal Support Should Not Be Needed to Make Solar Work

The situation became complicated enough that support and advice were sought through local council and councillor channels, alongside legal guidance. There is something deeply wrong when resolving the performance of a renewable energy installation requires this level of escalation.

Disputes happen in every industry. Complex projects sometimes go wrong. That is reality. The measure of a mature industry is not whether problems ever occur — it is whether there is a clear, efficient and fair mechanism for resolving them. Who investigates? Who has authority? Who determines technical responsibility? Who pays for independent assessment? What happens when multiple parties blame each other, or when the installer no longer exists? What happens when the manufacturer says the installation is wrong and the installer says the specification was wrong? The client should not spend six years refereeing that argument.

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Credit Where It Is Due: The DNO Process Already Recognises Named Responsibility

There is an interesting point here. The principle of named responsibility is not entirely new. DNO processes already require defined information and responsible parties within grid-connection paperwork. National Grid and the wider DNO framework have, in that respect, already recognised something important: somebody needs to be named. There needs to be traceability, documentation and a clear record of who is involved. That deserves recognition.

But it also raises another uncomfortable question. How consistently is the paperwork actually completed? How many systems are installed but not correctly registered? How many changes are made later without records being updated? How many building owners could immediately produce their complete DNO documentation if asked? Having a box on a form is a good start. Accountability requires ensuring the process behind that box is actually followed.

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Every Commercial Renewable Project Needs an Accountable Outcome Owner

Perhaps this is the missing role — not another contractor, not another person who supplies one component, but an accountable outcome owner. Someone whose job is to confirm that the complete energy system has achieved operational and commercial completion.

That person should be able to verify that the system matches the intended design, DNO requirements are complete, metering is correct, monitoring is active, the client has access to data, battery controls operate correctly, export arrangements are complete, tariffs are appropriate, documentation has been handed over, warranties are registered, responsible contacts are recorded, and actual performance is reviewed after commissioning.

Crucially, this should not automatically become the building manager's job. Unless they have specifically been trained and appointed to perform that role, it is unreasonable to expect them to coordinate an entire specialist energy ecosystem.

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We Need Independent Verification

There is an inherent weakness in allowing the organisation that designed, sold and installed a complex energy system to be the only organisation verifying that it works correctly. That is not an accusation against installers. It is basic governance.

On significant projects, independent commissioning or post-installation verification can provide enormous value. Did we get what we paid for? Does it work? Is it configured correctly? Is the data believable? Are savings being achieved? Is somebody actually looking? These are simple questions. But they can expose complicated problems early — before six years pass.

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AI and Better Monitoring Could Change Everything

There is also a huge opportunity here. Energy systems generate data continuously. We should be using it.

A monitoring platform should potentially be able to recognise excessive battery cycling, batteries repeatedly fighting one another, abnormal overnight imports, persistent export anomalies, unexpectedly high temperatures, systems producing materially below expectation, communication failures and meters producing contradictory readings.

AI does not need to replace engineers. It can help engineers know where to look. If a battery starts charging and discharging hundreds or thousands of times in an abnormal pattern, somebody should know. If three systems repeatedly appear to counteract each other, somebody should know. If a £100,000-plus energy asset is behaving abnormally for months, we should not rely on a busy building manager eventually noticing something strange on an electricity bill. That is not smart energy. That is smart equipment operating inside a dumb accountability structure.

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Solar Needs Transparency as Much as It Needs Technology

The renewable energy transition is accelerating. That is a good thing. But installing more equipment is not enough. We need transparency.

Who designed it? Who specified it? Who installed it? Who commissioned it? Who registered it? Who monitors it? Who manages the tariff and the export? Who receives alarms, and who reviews performance? Who is responsible when something goes wrong? And, most importantly: who is responsible for the outcome?

Because when ten organisations each own 10% of the process, there is a real danger that nobody owns 100% of the result.

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The Renewable Energy Industry Has to Grow Up With the Technology

Solar panels are becoming more efficient. Batteries are becoming more powerful. Energy management systems are becoming more intelligent. Tariffs are becoming more dynamic. Buildings are becoming increasingly electrified. The technology is moving quickly. Our accountability structures need to move with it.

A public building should not spend years trying to establish why its batteries are fighting each other. A building manager should not have to become an amateur energy-market specialist. A client should not lose years of potential export revenue because nobody owned the paperwork. And resolving a failed installation should not depend on whether holding the responsible company accountable might financially destroy it. These are not simply technical problems. They are governance problems.

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A Call for Solar and Battery Accountability

The renewable energy industry has achieved extraordinary things: millions of panels installed, huge growth in battery storage, more distributed generation, smarter buildings, lower-carbon electricity. But the next stage of the industry cannot simply be about installing more. It must be about accountability for performance.

Every significant renewable installation should have a clear chain of responsibility from design through to long-term operation. Customers should know who owns each responsibility. Data should be accessible. Abnormal performance should trigger action. Commissioning should prove outcomes. And where appropriate, independent verification should protect the client.

Because a solar installation is not successful when the scaffolding comes down. A battery installation is not successful when the green light comes on. It is successful when the system delivers the energy, financial and operational outcome the client was promised. And somebody needs to be accountable for making sure that happens.

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Facing a Complex Commercial Solar or Battery Problem?

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Independent Solar Consultants

Independent advice. Independent investigation. Evidence before assumptions.

Justin Dring is a commissioning design engineer and founder of Independent Solar Consultants, advising investors, asset managers and energy leaders on commercial solar, battery storage and data centre energy strategy. His work spans grid connection feasibility, BESS revenue modelling and independent technical due diligence — engineer-led and vendor-neutral, built for organisations committing serious capital who want the evidence in place before the decision, not after.