By Chris Miller, Power Harvest Infrastructure (Phi)
This chapter is an excerpt from Greener Data: Volume Three, launched on Earth Day 2026. Featuring perspectives from 75+ sustainability leaders across the digital infrastructure ecosystem, the full book is available now on Amazon.
The digital systems that support modern life are expanding at an extraordinary rate. From healthcare to transport, financial services to entertainment, our reliance on data continues to deepen. Yet behind every digital interaction lies a physical reality: data must be processed and stored, and the infrastructure that supports this requires constant cooling and power. The power to maintain this growing digital boom has environmental, economic, and social implications that can no longer be overlooked.
Power Harvest Infrastructure (Phi) approaches this challenge with a particular philosophy. Phi, the 21st letter of the Greek alphabet, represents the Golden Ratio, a symbol of harmony and proportion. It is a reminder that infrastructure, however technical, must ultimately sit in balance with the world around it. Our concept of Ethically Powered Data™ expresses this ambition: that the growth of digital infrastructure should coincide with benefits for its communities, its energy systems, and the environment.
This is not simply a question of building “green” data centers. It is about rethinking the relationship between data and energy in a way that is fair, resilient, and sustainable.
The Energy Demands of a Digitalising World
There is little dispute that digital demand will continue to rise. Artificial intelligence, automation, life sciences, and connected services all contribute to a significant increase in data processing. In many parts of the UK and Europe, the growth of this digital infrastructure is now brushing up against grid capacity limitations. Delays to grid connections for data centers, concerns about local power availability, and competition between industrial and residential electricity demand are becoming more common.
These pressures are often framed as a clash between digital progress and energy constraints. But it need not be so stark. The real opportunity lies in viewing data infrastructure not only as a consumer of energy but also as a participant in a wider local energy ecosystem.
Sustainable Technology Campuses: A Practical Approach
Phi’s work focuses on developing Sustainable Technology Campuses™ (STCs) across the UK and EMEA. These are data centers designed not as isolated facilities but rather as integrated components of local energy landscapes.
From day one, each campus is connected to the national grid to ensure immediate energy security and operational reliability. At the same time, we begin integrating on-site power generation, allowing for a gradual transition toward locally produced, carbon-neutral energy. This could include a combination of wind and solar power, supported by battery and other energy storage systems (electrochemical, mechanical, or thermal). Over time, additional technologies such as on-site biogas, hydrogen-based combined heat and power, and potentially small modular reactors (SMRs) can be incorporated. The precise combination varies by location, but the principle remains consistent: build today for a cleaner energy future.
A key part of this approach is the microgrid. By integrating on-site renewable generation with the national grid through private-wire/behind-the-meter infrastructure, an STC can operate with a level of flexibility rarely seen in conventional data centers. This approach allows the data center to respond dynamically to changes in energy demand while always delivering the highest levels of resilience.
By collaborating with local power grids, handling increases in energy demand, and adopting advanced energy management technologies, STC data centres will strengthen overall grid reliability and efficiency. The result is a hybrid energy system with real-time energy management that improves cost efficiency, enhances grid resilience, and optimises energy use, supporting sustainable growth over the long term. This is not an all-or-nothing transformation. It is incremental, practical, and grounded in local energy realities.
Ultimately, for a business to flourish, Phi believes it must be sustainable and this is particularly precedent for Data Center development. Phi suggests that sustainability needs to be E³ Sustainable™, encompassing three pillars:
1. Economically Sustainable
Data centres are both capital-intensive and energy-intensive. Long-term success depends on structuring investment and operations in a way that reflects this reality.
One practical approach is to separate the capital-intensive components — IT infrastructure, data centre facilities, and energy infrastructure — into distinct investment pools. Each has a different risk and return profile, and separating them allows investors to align capital appropriately while improving financial resilience.
Facilities must also be designed for efficiency, flexibility, and durability. That means building assets that can adapt to evolving technologies, fluctuating demand, and regulatory change. Resilient design, operational efficiency, and competitive pricing are not competing objectives; they are mutually reinforcing. A well-designed data centre should be able to respond to future market and policy shifts without major structural redesign.
2. Environmentally Sustainable
Environmental sustainability extends far beyond operational energy use. It spans the full lifecycle of the asset.
Embedded Carbon
Reducing embodied carbon begins with the supply chain. Partnering with responsible suppliers ensures that construction materials are renewable, reusable, or contain recycled content. Facilities should be built to leading local and international standards, such as achieving BREEAM “Outstanding” certification, demonstrating measurable environmental performance.
Operational Carbon
During operation, decarbonisation must be deliberate and continuous. This includes:
•Using on-site energy from decarbonised sources wherever possible
•Sourcing renewable or carbon-neutral electricity
•Minimising overall energy demand through best-in-class facility and equipment design
•Deploying intelligent energy management and storage systems to optimise load
Biodiversity
Biodiversity must be considered at the earliest design stage. Development should minimise disruption to local ecology, manage construction waste responsibly, and aim for zero waste to landfill during both construction and operation. Sites can be designed to integrate habitats and enhance environmental services rather than displace them.
Circularity
True sustainability requires circular thinking. Data centre components should be reusable or recyclable at end of life. Construction and operational waste should avoid landfill entirely. Consumables should be sourced from recycled or renewable materials, with certified supply chains ensuring full chain of custody and accountability.
Energy Use and Export
Energy strategy should prioritise renewable sources, with decarbonised fuels used where renewables are not yet viable. Surplus electricity can be stored on-site or exported for wider commercial use. Heat, often viewed as waste, should instead be treated as an asset. Innovative cooling technologies can reduce excess heat. Where heat is still produced, it can be captured and reused through co-located commercial activity or by supplying nearby communities.
Water Efficiency
Water use must also be minimised. Closed-loop cooling systems, rainwater harvesting, and efficient operational processes can significantly reduce demand. The long-term ambition should be to achieve a net-positive water position wherever feasible.
3. Ethically Sustainable
Sustainability is not solely environmental or financial. It is also social.
Data centre developments should share their benefits with the communities that host them. This may include subsidised access to IT services or energy for local residents and businesses. A local society benefit fund, sharing a percentage of project success with community initiatives, ensures that economic growth translates into tangible local value.
Digital infrastructure should not be imposed on a region; it should strengthen it.
Data Centres as Energy Partners, Not Competitors
One of the most underappreciated characteristics of data centers is their built-in backup capacity. These systems, designed to ensure uptime in the event of an outage, comprise generators, batteries, and other forms of stored energy that spend much of their life unused.
This raises an important question: could this existing infrastructure support the grid, rather than simply waiting for emergencies?
In many cases, the answer is yes. With the right coordination and safeguards, data centers can help ease local constraints by offering services such as load balancing or short-term power injection during peak demand, as not all computing tasks require continuous power. Some workloads can be shifted to off-peak periods, reducing strain on the grid system.
Taken together, these capabilities suggest a more constructive role for data centers, one in which they contribute to energy resilience and help integrate more renewable power into the grid. It is a gentle but important shift in perspective: from data centres as passive consumers to data centres as active participants.
Local Benefits Beyond the Data Hall
A well-planned technology campus can deliver far more than digital infrastructure. When designed carefully, it can strengthen the local economy, support communities, and improve regional energy systems.
Skills and Workforce Development
The digital and energy transitions are creating demand for new expertise. Data centers need specialists in AI and cloud technologies. They also require mechanical and electrical engineers, network engineers, renewable energy specialists, project managers, and skilled trades such as welders and pipefitters.
Partnerships with higher education are able to support apprenticeships, technical training programmes, and research collaboration. This ensures that local people can gain the skills needed for long-term careers in the data centre and energy industries.
Indeed, my experience of working closely with local schools, colleges, and universities in projects in Europe and China confirms this approach works.
During construction, large data center projects create hundreds, and sometimes thousands, of jobs.
Once constructed direct employment in the data center is usually quite modest albeit with high pay grades. However, there is also the DC job multiplier effect. A 2025 PWC report “Economic Contributions of Data Centers in the United States” states a 7.5 job multiplier effect – meaning that each job in the U.S. data center industry supported an average of 6 .5 additional jobs elsewhere in the U.S. economy through indirect and induced operational and capital spending effects
Local suppliers, contractors, and service providers benefit from ongoing demand of expansion and upgrading of the data centers. In some cases, campuses can encourage local manufacturing and specialist support for mechanical, electrical, and IT equipment.
Furthermore, with the STC model, the re-use of heat creates investment in adjacent industry opportunities such as AgTech and more jobs are created.
Heat Reuse and Resource Efficiency
Data centers generate significant amounts of heat. Much of this heat is often wasted. With the right systems in place, it can be captured and reused.
Recovered heat can supply district heating networks for homes and commercial buildings. It can support nearby industries that require a steady heat source. It can also enable controlled-environment agriculture. In colder climates, this can help farmers grow crops year-round. This reduces reliance on imported produce and lowers transport-related emissions. The data centre becomes part of a more resource-efficient local system.
Inward Investment
Data centers often act as anchor investments. They attract technology companies, service providers, and supply chain partners to the region. Their presence signals long-term confidence in local infrastructure and connectivity. This can encourage further private investment.
Large campuses, such as STCs, can also support the development of carbon-neutral energy generation and storage. The data center can act as a long-term energy offtaker. This provides financial certainty for renewable energy projects. Energy infrastructure can then be financed and operated by specialist power providers. The data center focuses on its core operations. This structure reduces capital pressure and supports the growth of clean energy assets that benefit the wider community.
Energy Stability
Where campuses integrate on-site renewable generation and storage, they can improve local energy resilience. By operating as part of a flexible microgrid, a data center can help manage demand and support grid stability. It can also reduce overall carbon emissions. This benefits both the facility and the surrounding region.
Together, these elements reflect a clear principle. Digital growth should strengthen the places in which it occurs. A well-designed technology campus can drive skills, investment, energy innovation, and long-term regional resilience.
A Conversation About Sovereignty
Public discussion around AI and digital sovereignty has grown rapidly in recent years. Less attention, however, has been paid to the energy systems required to support that sovereignty.
A country cannot meaningfully control its digital future without confidence in the energy that powers it. The two are interdependent. If data is to be stored and processed domestically, the energy enabling that activity must also be secure, dependable, and as far as possible located within the same ecosystem.
This is not about isolationism; it is about resilience. Sovereign data requires sovereign energy pathways, whether through on-site renewable generation, local microgrids, or intelligent interaction with the wider power system.
At Phi, this principle underpins much of our development strategy. We are working with specialist partners in Europe who are developing advanced microgrid optimisation technologies. Their tools help coordinate multiple energy sources, renewables, storage, and grid supply in real time, allowing data centers to operate more flexibly and with lower emissions. The aim is to demonstrate, in a practical and measurable way, how digital infrastructure can ease pressure on local grids rather than exacerbate it.
This approach of real time energy management that can align with and support the power grid, not only increases resilience and assurance of power, it also opens up other revenue streams.
Towards an Ethically Powered Digital Economy
Ethically Powered Data™ is a recognition that the data economy has responsibilities as well as opportunities. The challenge is not simply to reduce environmental impact but to ensure that the benefits of digital development are shared fairly, locally, and sustainably.
If the UK and Europe are to continue expanding their digital capabilities, then the infrastructure supporting that growth must evolve. It must be more flexible, more efficient, and more connected to local energy goals. And it must demonstrate that digital progress can align with net-zero ambitions rather than sit in tension with them.
The digital future is already taking shape. Our task now is to ensure that it is powered in a way that reflects our broader values, balancing innovation with stewardship, ambition with responsibility, and growth with community benefit.
Author: Courtney Burrows
Courtney Burrows is the Executive Editor of Greener Data and Executive Vice President of Marketing and Sustainability at JSA, where she leads content strategy across PR, marketing, and media initiatives for the global digital infrastructure industry. With more than 20 years of experience — and over a decade dedicated to data centers — she curates expert insights focused on data center sustainability, innovation, and the evolving demands of an AI-driven world.



