Bank of America Global Research came away from a visit to SSE's electricity transmission business in Scotland with a clearer picture: the grid operator's investment runway extends well beyond the current regulatory period, and it can still earn attractive returns for shareholders.
In a note following the investor event, the bank said SSE's transmission arm, SSEN Transmission, can keep expanding its buildout past RIIO-T3—the UK's next price-control framework for electricity networks—while maintaining a target return on equity of more than 9%. That's a key signal for investors who worry that the company's growth story might hit a wall once the current spending cycle ends.
How grid companies make money
Unlike most utilities, electricity grid operators don't grow profits by selling more power. Instead, they earn a regulated return on the assets they build and operate—transmission lines, substations, and other infrastructure. The UK's energy regulator, Ofgem, sets the rules for how much these companies can earn, typically through multi-year price controls that determine allowed revenues and returns.
Under this model, the more a company invests in its network, the larger its asset base becomes, and the more it can earn in absolute terms—provided it hits efficiency and delivery targets. That's why the size and duration of the investment pipeline matter so much for a company like SSE.
BofA said SSEN Transmission used the event to underline two things: it can deliver complex projects on time and on budget, and it has a longer pipeline of work than many investors assume. The bank pointed to site visits and management presentations that highlighted the company's ability to handle the engineering challenges of upgrading Scotland's grid, which is critical for connecting renewable energy projects to demand centers.
Why the pipeline matters
The UK is in the middle of a massive electricity grid upgrade, driven by the push to decarbonize power generation and connect offshore wind farms. Scotland, with its abundant wind resources, is at the heart of this buildout. SSEN Transmission is responsible for the transmission network in the north of Scotland, making it a key player in the country's energy transition.
RIIO-T3 is the next price-control period, expected to run from 2026 to 2031. Many investors had assumed that SSE's capital spending would peak during that window and then taper off. But BofA's takeaway suggests the opposite: the company sees opportunities to keep investing beyond that period, potentially stretching into the 2030s.
That's significant because it implies a longer growth runway than the market may have priced in. For a regulated utility, a longer investment horizon can support higher earnings growth and a more durable dividend, which are key attractions for income-focused investors.
What it means for investors
For everyday investors, the key takeaway is that SSE's growth story may not be as short-lived as some feared. The ability to keep investing beyond RIIO-T3 while still targeting a return on equity above 9% suggests management sees a robust pipeline of projects that can generate steady, regulated returns for years to come.
That said, regulated returns are not guaranteed. They depend on Ofgem's decisions, project execution, and cost control. If SSE can deliver on its promises, the long-term outlook looks solid. But investors should also be aware that the company's returns are capped by regulation, so the upside is more about steady growth than explosive gains.
BofA's positive read on SSE comes amid a broader theme of infrastructure spending and energy transition plays. Other companies in the sector, such as those involved in AI-driven data center growth, are also benefiting from long-term investment cycles, though the drivers differ. For grid operators, the catalyst is the shift to cleaner energy, which requires massive network upgrades.
Investors should watch for updates on RIIO-T3 final determinations and SSE's capital expenditure plans. Any changes to the regulatory framework could affect the company's ability to hit its return targets. But for now, BofA's assessment adds to the case that SSE's grid business has a longer growth runway than many expected.
As with any regulated utility, the investment case hinges on the balance between growth and regulatory risk. SSE's transmission business appears well-positioned to benefit from the UK's energy transition, but investors should keep an eye on how the regulatory environment evolves.
