Data centres: who pays for the party?

The bill is shared; the benefits have to be negotiated. Markets and grids can spread costs far beyond the data centre. What local residents receive depends on taxes, contracts and written commitments.

During construction, around 1,500 workers. Once the centre is running, around 50 full-time staff, roughly half of them contractors. Virginia's legislative auditor, JLARC, reported this contrast for a typical facility using information from companies. Construction concentrates people and activity. Afterwards, the centre still needs electricity, with a much smaller workforce. [1]

That is where the discussion should begin, before the opening ceremony. The investment is impressive; what matters is how much remains for those providing land, water and electricity capacity. As the Yandex case showed, the cloud has a physical body. It also has a bill.

Three answers before we go further

Can electricity prices rise without benefits for the community? Yes, they can rise. Tax benefits reach the place that collects the revenue: Loudoun does. Exemptions, such as those granted by Virginia, reduce public revenue. Assessing the balance means examining both accounts.

Does GDP only grow during construction, leaving few jobs afterwards? Permanent employment is small compared with construction employment. Operation sustains activity, purchases and taxes. Those benefits may reach places other than the municipality bearing the costs.

Can the bill reach an entire country? Yes, markets and grids can spread costs across the electricity system. PJM illustrates the regional mechanism; Menon models it for Norway. Widely shared costs can coexist with concentrated benefits.

Electricity becomes more expensive through several channels

A centre buys energy, uses grids and needs available capacity. Each has a price. Paying for the connection settles one item. If demand grows faster than supply, the price paid by other consumers can also rise.

In PJM, the capacity price for much of that US region rose from around 29 to 270 dollars per megawatt per day in the auction for 2025–2026. This is a wholesale component that pays for available capacity; household bills contain other items. The independent market monitor attributed almost three quarters of the increase in auction revenues to data centre demand, comparing it with a scenario without that load. It also identified other causes. [2][3]

Ireland shows the scale: centres consumed 23 % of metered electricity in 2025. At that level, decisions about adding generation and grids alongside new connections affect the whole system. Its regulator has imposed additional renewable energy conditions on connections covered by its policy. It also recognises that expanding demand can spread fixed costs over more units. The outcome depends on how growth is organised. [4][5]

Virginia responded to the risk of stranded investments with a separate tariff for large Dominion customers. New contracts from 2027 will require long commitments and minimum payments even if consumption falls below expectations. The regulator's response assigns responsibility: whoever requests infrastructure must make commitments that survive a change of plans. [6]

Benefits need to reach the public purse

Loudoun collected 684.8 million dollars through its tax on data centre equipment in fiscal year 2024. That money reached the county's accounts. It is a substantial reason to welcome the activity. [7]

Alongside that revenue, Virginia granted the sector sales and use tax exemptions valued at 928 million dollars in fiscal year 2023. These are different years, authorities and categories: a balance requires comparable figures. The contrast creates a clear political obligation: publish what was collected alongside what was waived. [1]

An investment can generate activity and receive public advantages at the same time. Celebrating the former without showing the latter presents an incomplete account. Local benefits are secured through revenue and enforceable obligations. The developer's investment figure announces the project; the public budget allows it to be judged.

Spain: turn announcements into conditions

In March 2026, Amazon announced planned investment of 33,700 million euros in Spain. Its calculation combines direct, indirect and induced jobs: suppliers and activity arising from spending. Direct investment includes construction. To know what will remain in Aragón, construction, operation and estimated economic effects must be broken down. Every announcement should specify how many jobs will remain, which purchases will continue and what revenue the authorities will receive. Those figures provide a basis for negotiating conditions. A national total leaves those questions open. [8]

Algete reports concrete benefits: training and local initiatives funded by Microsoft. Their scope, duration and relationship to committed public resources need to be known. Specifying the programme makes it possible to demand results. [9]

The grid adds another decision about allocation. In February, REE — Red Eléctrica, Spain's grid operator — reported 11.8 GW of new demand granted access since 2022 but not yet in service. This capacity covers different activities and represents permits awaiting connection. Reserving capacity commits a scarce resource: it matters who uses it, when and under what conditions. [10]

Spain already has tools to act. Article 25 of Real Decreto 1048/2013 (Royal Decree) assigns responsibility for certain distribution network extensions to the applicant. [11] Articles 20 bis onwards of Real Decreto 1183/2020 (Royal Decree) allow competitive allocation of access at certain transmission nodes using socioeconomic and environmental criteria. [12] Article 11 of Real Decreto-ley 7/2026 (Royal Decree-law) establishes advance grid toll payments for certain reservations before operations begin. [13] These tools allocate costs, organise access and commit the applicant. They must be used with identifiable responsible parties and verifiable conditions.

Norway: share costs and make returns concrete

Menon estimates that data centre growth will raise prices in 2035 by between 5 and 11 øre (hundredths of a Norwegian krone) per kilowatt-hour above the reference scenario, with the same generation trajectory. The same study identifies operational activity and around 600 directly employed workers in 2025. Norway's debate thus brings together both sides: pressure on a shared resource and economic benefits whose location and recipients must be identified. [14][15]

The anleggsbidrag (grid investment contribution) requires whoever triggers grid investment to pay the attributable share. Statnett, Norway's transmission system operator, has approved changes to grid tariffs (nettleie) from 2027 to shift more capacity costs onto large consumers. These decisions concern who pays and are distinct from the energy price. [16][17]

Heat can become a local return. Norway requires an assessment of heat recovery at certain new centres. Getting it to residents requires a buyer, pipes, a price and someone responsible if the centre closes. The benefit becomes defensible when those arrangements are settled in writing. [18]

Conditions come before the welcome

The evidence has a common limit: it cannot establish a universal surcharge. US studies reach opposing conclusions. For Spain, this research has not verified a causal estimate of additional household costs. The Norwegian scenarios calculate future differences, rather than increases already charged; new generation can moderate them. Nor does the evidence support a total absence of benefits. [19][20]

Municipalities should demand separate figures for operational employment, revenue after exemptions, measured water use and enforceable commitments. Regulators should identify costs and payers and secure guarantees against cancellations. Citizens should demand public documents and results that can be compared with promises.

The bill is spread through the system. The benefits have to be negotiated, put in writing and collected.