Powering the move to 24/7 carbon-free energy (CFE) with better data
As major users and CPPA customers target 24/7 carbon-free energy (CFE), many are looking for more granular matching data to understand how renewable generation aligns with electricity use hour by hour rather than year by year.
For the past decade, corporate renewable electricity procurement has been built on annual numbers. Certificates, portfolio supply and corporate power purchase agreements have helped scale investment and bring consistency to Scope 2 reporting.
That approach has worked.
But annual numbers flatten reality. Electricity is consumed and generated continuously, not year by year. And for large energy users, it’s that mismatch across time, rather than the year-end balance, that increasingly shapes both carbon outcomes and strategic decisions.
Annual success, hidden variation
Annual matching remains valid and important. It has given organisations a practical, scalable way to demonstrate progress and continues to underpin renewable investment.
What it doesn’t show is when renewable generation supports demand.
Two organisations with identical annual market-based Scope 2 outcomes can experience very different realities across the day. One may align well with renewable generation during most working hours. Another may rely heavily on grid electricity during mornings, evenings or winter periods when renewable output is lower.
On paper, they look the same, but operationally, they’re not. As the Greenhouse Gas Protocol reviews Scope 2 guidance, this temporal dimension is attracting more attention.
From reporting to decision intelligence
Most large organisations already collect half-hourly or hourly electricity data for cost and operational management. What is changing is how that data is being used.
Granular carbon and energy reporting makes it possible to see when renewable generation aligns with consumption – and when it doesn’t. That visibility often reveals patterns that annual reporting smooths over: consistent gaps at particular times of day, seasonal exposure or sites whose load profiles drive disproportionate reliance on the grid.
Once these patterns are visible, the conversation can shift. The key question becomes less “how much renewable electricity do we buy?” and more “where would additional effort have the greatest impact?”
Why CPPAs and asset linkage matter
CPPAs linked to named renewable assets in Britain already provide a strong foundation for this level of insight. By connecting consumption to specific wind or solar assets in the same market, they offer a degree of traceability that portfolio approaches alone cannot.
Add granular reporting on top of that, and organisations can assess not just annual alignment, but consistency across time. For some sites and operations, it may confirm that existing strategies are robust. But for others, it may highlight exposure that had previously gone unnoticed. In both cases, the value lies in the clarity.
A more practical path to 24/7 carbon-free energy
Ambitions around 24/7 carbon-free energy (CFE) are growing, particularly among organisations with long-term climate commitments. But for most businesses, this is not an immediate destination; it is a direction of travel.
Granular insight makes that journey credible. Organisations can identify where they are already close to continuous alignment and where the largest gaps remain. That enables prioritisation, targeting new generation, demand flexibility or storage where it will deliver the greatest benefit.
It might not be about chasing perfection everywhere, but rather using data to make deliberate, defensible choices and develop resilient strategies that combine multiple levers: contracted renewable generation, physical on-site assets, storage and demand management, guided by a clear understanding of how electricity is actually consumed.
A shift in emphasis
Annual matching, certificates and CPPAs remain essential tools, and they continue to support renewable deployment at scale.
What is changing is the level of understanding that leading organisations now expect. As carbon accounting matures, the advantage will lie with those who understand their electricity use in detail and can translate that insight into credible, long-term action.
At SSE Energy Solutions, we can provide you with CPPAs linked to named UK renewable assets, coupled with a granular reporting platform, showing how generation aligns, on a monthly, daily and hourly basis, with your electricity use across the day. The aim is not to promise perfect alignment, but to provide the insight to help plan your ongoing energy strategy. For more information, get in touch with our CPPA team.