A new definition of speed to power

Why data centre power timelines now depend on internal teams, not grid delays

Data centre developers have traditionally measured success by how quickly they can connect to the electricity grid. However, a significant shift is underway. The industry is redefining what speed to power actually means.

Speed to power used to describe the time required to secure electric power for a data centre. This included permitting, utility interconnection, construction, and final energisation. Grid queues now stretch five to seven years in major markets. Consequently, this has become the industry’s primary bottleneck.

The new definition changes the focus entirely. Instead of simply overcoming external delays, developers are optimising internal processes. Early alignment among developers, operators, utilities, and contractors can now reduce embodied carbon by up to 23% at individual sites. This represents a fundamental rethinking of how the sector approaches both speed and sustainability.

For UK businesses considering data centre services or building digital infrastructure, this matters. The companies that supply your cloud computing, hosting, and data storage are making decisions now that will affect their carbon footprint for decades. Furthermore, these decisions influence pricing, reliability, and your own supply chain emissions.

What embodied carbon means for data centre construction

Embodied carbon refers to greenhouse gas emissions from building materials and construction activities. This includes everything from concrete production to steel manufacturing and transport of materials to site.

The building sector accounts for 39% of global energy-related emissions. Embodied carbon represents at least 25% of that total. For data centres, which require substantial structural materials to support heavy equipment and provide resilience, these figures matter considerably.

At Bauxite 1, a data centre project, early coordination among project stakeholders achieved a 23% reduction in embodied carbon. Additionally, the project delivered a 17% reduction in another carbon metric, likely operational or total lifecycle emissions. These reductions came from aligning design decisions before construction began, rather than optimising after the fact.

Research confirms that embodied carbon savings of 19% to 46% are achievable with less than 1% cost premium. Strategies include material substitution, concrete mix optimisation, and whole-building design approaches. Notably, these interventions work best when implemented during initial planning phases.

Several proven methods exist for reducing embodied carbon in data centre construction. Replacing up to 50% of cement with supplementary cementitious materials like fly ash or slag cuts emissions significantly. Using recycled steel reduces carbon footprint to one-fifth that of virgin steel. Repurposing existing structures eliminates the need for new materials entirely.

How early coordination delivers carbon and cost benefits

The traditional approach to data centre development follows a sequential model. Developers secure land, then design the facility, then engage utilities, then start construction. Each stage waits for the previous one to complete. This creates delays and limits opportunities for integrated carbon reduction.

The emerging model prioritises parallel workflows and early stakeholder alignment. Developers, operators, utilities, and contractors begin coordinating during initial design phases. This allows material choices, structural systems, and energy infrastructure to be optimised together rather than separately.

Several major operators now follow this approach. Equinix has adopted a three-pillar strategy: avoid new materials where possible, reduce carbon in unavoidable materials, and innovate with emerging low-carbon technologies. This framework requires decisions about material reuse, concrete specifications, and steel sourcing before detailed design begins.

Energy campuses represent another application of this principle. These developments integrate power infrastructure from day one, using parallel workflows for land acquisition, grid planning, and renewable energy deployment. Consequently, they compress overall timelines while reducing embodied carbon through coordinated design decisions.

Behind-the-meter generation, including solar arrays, fuel cells, and battery storage, enables power readiness while grid interconnection proceeds. This approach provides schedule predictability, which has become more valuable than sheer speed. As one industry observer noted, time to power is increasingly about predictability rather than raw acceleration.

For businesses procuring data centre services, these changes have practical implications. Providers that prioritise early coordination typically deliver more reliable timelines and lower carbon intensity. Therefore, asking potential suppliers about their approach to embodied carbon and stakeholder alignment provides useful information about project risk and sustainability performance.

Material specifications that reduce emissions without premium costs

Concrete represents the largest source of embodied carbon in most data centre projects. Traditional concrete mixes rely heavily on Portland cement, which produces approximately one tonne of CO2 for every tonne manufactured. However, proven alternatives exist.

Supplementary cementitious materials can replace up to 50% of cement in many applications. Fly ash, a byproduct of coal combustion, and ground granulated blast-furnace slag both provide comparable strength while significantly reducing emissions. Specifying these materials during design adds minimal cost but delivers substantial carbon savings.

Steel framing and reinforcement account for another major portion of embodied carbon. Recycled steel carries approximately 20% of the carbon footprint of virgin steel. Most structural applications can accommodate recycled content without performance compromises. Specifying minimum recycled content requirements during procurement ensures these benefits materialise.

Structural design optimisation offers additional opportunities. Right-sizing structural elements, reducing over-specification, and designing for material efficiency can cut embodied carbon by 10% to 15%. These savings require coordination between architects, structural engineers, and mechanical engineers during early design phases.

Some data centre developers are exploring timber and other bio-based materials for non-structural applications. While these materials remain uncommon in primary data centre structures, they show promise for office areas, administrative buildings, and certain interior applications. Timber stores carbon during its lifespan, potentially creating negative embodied carbon for specific building elements.

The key insight is timing. Material specifications locked in after detailed design completion offer limited flexibility. Specifications developed collaboratively during concept and schematic design phases allow genuine optimisation. This explains why early stakeholder coordination produces measurably lower embodied carbon figures.

Grid constraints and alternative power strategies

Grid interconnection queues in major markets now extend five to seven years. This timeline exceeds the total construction period for most data centres. Consequently, grid connection has become the critical path item for most projects, regardless of how efficiently construction proceeds.

Traditional data centre development assumed grid power would be available when needed. Developers focused on securing suitable land, obtaining planning permission, and managing construction timelines. Grid connection was a necessary step but rarely the longest one. That assumption no longer holds in most markets.

Several factors contribute to extended grid queues. Renewable energy projects occupy many interconnection positions. Transmission infrastructure has not kept pace with demand growth. Utility planning and approval processes remain sequential and time-consuming. In combination, these factors create bottlenecks that no individual developer can resolve through optimisation alone.

Energy campuses offer one response to this constraint. These developments integrate on-site generation, energy storage, and grid connection into a unified plan. By developing power infrastructure in parallel with building construction, they reduce dependency on grid connection timing. Moreover, they create opportunities for renewable energy integration that standalone facilities cannot easily achieve.

Behind-the-meter generation provides another option. Solar arrays, fuel cells, and battery storage can provide interim or supplementary power while grid interconnection proceeds. This approach does not eliminate the need for grid connection but reduces schedule risk and improves predictability. For operators, predictability often matters more than absolute speed.

However, these alternative approaches require early planning and coordination. Behind-the-meter generation must be sized and specified during initial design. Energy campus concepts require land acquisition strategies that differ from traditional data centre site selection. Consequently, the shift toward alternative power strategies reinforces the importance of early stakeholder alignment.

Essential facts about embodied carbon in data centres

• Embodied carbon accounts for at least 25% of the building sector’s 39% share of global energy-related emissions, making it a material factor in data centre sustainability.
• Early coordination among developers, operators, utilities, and contractors achieved a 23% reduction in embodied carbon at the Bauxite 1 data centre project.
• Material substitution and design optimisation can deliver 19% to 46% embodied carbon savings with less than 1% cost premium in most applications.
• Replacing up to 50% of cement with supplementary cementitious materials like fly ash or slag significantly reduces concrete emissions without compromising structural performance.
• Recycled steel carries approximately one-fifth the carbon footprint of virgin steel and meets structural requirements for most data centre applications.
• Grid interconnection queues now stretch five to seven years in major markets, making internal coordination more valuable than external acceleration.
• Behind-the-meter generation including solar, fuel cells, and batteries enables power readiness while grid connection proceeds, improving schedule predictability.

What this means for businesses using data centre services

Most UK businesses do not build their own data centres. However, you almost certainly use services hosted in them. Cloud computing, software as a service, website hosting, and data storage all depend on data centre infrastructure. The carbon intensity of that infrastructure increasingly matters for your own reporting and supply chain emissions.

Scope 3 emissions include the carbon footprint of purchased services. For many businesses, data centre services represent a measurable portion of Scope 3 totals. As reporting requirements expand and supply chain scrutiny increases, understanding the embodied and operational carbon of your data centre providers becomes necessary, not optional.

The shift toward early coordination and embodied carbon reduction affects service pricing and availability. Providers that invest in low-carbon materials and optimised design typically achieve better cost control than those addressing carbon as an afterthought. Moreover, facilities with lower embodied carbon often demonstrate better operational efficiency, as the same coordination that reduces construction emissions tends to optimise ongoing performance.

When evaluating data centre providers or cloud services, asking about embodied carbon reduction strategies provides useful information. Providers that can articulate specific approaches to material selection, early stakeholder coordination, and carbon measurement typically demonstrate more mature sustainability practices overall. Conversely, providers that focus exclusively on renewable energy procurement may be missing significant carbon reduction opportunities in their construction practices.

For businesses in sectors with carbon reduction targets or public procurement requirements, these questions become particularly important. An increasing number of tenders now include supply chain emissions criteria. Your data centre provider’s embodied carbon performance directly affects your ability to meet these requirements. Therefore, incorporating embodied carbon questions into procurement processes makes commercial sense beyond sustainability considerations alone.

The timeline implications also matter. Providers using early coordination approaches typically deliver more predictable project schedules. This affects service availability, expansion timelines, and your own capacity planning. A provider struggling with grid delays or construction inefficiencies may not be able to scale services when you need them. Consequently, understanding a provider’s approach to speed to power offers insight into their operational reliability.

UK businesses should also consider geographical factors. Grid constraints vary significantly by region. Some areas face minimal interconnection delays while others experience queues exceeding five years. Providers with geographically diverse facilities and alternative power strategies offer better resilience against regional grid constraints. This diversification protects your service continuity and provides options as your own requirements evolve.

Where UK building standards address embodied carbon

UK building regulations increasingly address embodied carbon, though requirements vary by sector and jurisdiction. Understanding these standards helps businesses evaluate whether data centre providers meet current and anticipated requirements.

The UK Green Building Council has established embodied carbon targets for new buildings. These targets call for 40% reductions by 2030 compared to 2020 baselines. While not legally binding for all projects, these targets influence design practices and increasingly appear in planning requirements and corporate commitments.

The Greater London Authority has implemented embodied carbon reporting requirements for certain major developments. These require whole life-cycle carbon assessments following standardised methodologies. Several other local authorities are developing similar requirements. Consequently, data centre developers in these jurisdictions must measure and report embodied carbon regardless of voluntary commitments.

Part Z of the Building Regulations, expected to come into force in the coming years, will introduce mandatory whole life-cycle carbon assessments for new buildings. This will create consistent embodied carbon reporting requirements across England. The framework will require assessments at planning stage and post-construction verification, ensuring embodied carbon receives the same regulatory attention as operational energy performance.

For businesses procuring data centre services, these regulatory developments create both risks and opportunities. Providers that have already implemented embodied carbon measurement and reduction practices will adapt easily to new requirements. Those treating embodied carbon as optional may face compliance costs and potential delays as regulations tighten. Therefore, provider maturity on embodied carbon offers a useful indicator of regulatory resilience.

Several industry standards and certification schemes now address embodied carbon. BREEAM includes embodied carbon credits in its assessment methodology. The NABERS framework, increasingly used for data centres, incorporates embodied carbon in its ratings. These schemes provide standardised ways to compare provider performance and verify carbon reduction claims.

Finding authoritative guidance on data centre carbon performance

The Department for Energy Security and Net Zero provides policy guidance on carbon reduction in the built environment. Their publications include standards for whole life-cycle carbon assessment and sector-specific decarbonisation pathways. These resources establish the regulatory context for embodied carbon requirements.

The UK Green Building Council publishes practical guidance on embodied carbon reduction strategies. Their framework for net zero carbon buildings includes detailed methodologies for measuring and reducing embodied carbon across building types. This guidance informed the industry targets mentioned earlier and provides useful benchmarks for evaluating provider performance.

The Institution of Structural Engineers offers technical guidance on low-carbon structural design. Their publications address material selection, structural optimisation, and design strategies that reduce embodied carbon without compromising performance. These resources help businesses understand the technical feasibility of carbon reduction claims from data centre providers.

For businesses needing support with supply chain carbon assessment or data centre procurement, our compliance services help UK businesses measure and reduce Scope 3 emissions from purchased services. We can help you develop procurement criteria that address embodied carbon, evaluate provider sustainability claims, and integrate data centre emissions into your carbon reporting.

Understanding how your data centre providers approach embodied carbon helps you manage supply chain risk, meet reporting requirements, and support your own carbon reduction targets. The shift toward early coordination and material optimisation represents a genuine change in how the industry operates, creating opportunities for businesses that engage with these issues proactively rather than reactively.