Spain would trade grid access for the right to switch loads off

Between 29 October and 4 November two rulebooks moved at the same time. Spain sent its data centre royal decree to the last legal step before cabinet, tying grid access to hour-by-hour renewable cover, surcharges of up to 500% and, for some sites, an automatic power reduction signal. The European Commission adopted a 2027 work programme carrying 23 initiatives, withdrew 18 pending proposals including its overhaul of energy taxation, and left the energy file to a post-2030 framework and simplification package.

Spain conditioned grid access on what a large load can prove, hour by hour

The draft royal decree on energy, environmental, resilience and digital sovereignty requirements for data centres reached the Council of State in late October, and Demócrata published the revised text on 29 October. It applies to new data centres, and to those still awaiting a network access decision, with access capacity of 10 MW or more, counted individually and together where several facilities sit in the same location. That threshold replaces the 1 MW figure announced in August. The explanatory text behind the draft notes that more than 12 GW of transmission and distribution access has been granted in recent years, against national 2030 targets of 2.5 GW of computing capacity, equal to between 3.5 and 4 GW of electricity demand.

The supply test is the part that reaches beyond the sector. Outside an alternative route that opens only if national renewable generation passes 90%, a site must cover at least 80% of total consumption through self-consumption or long-term power purchase agreements tied to renewable or storage facilities in Spain, and at least 80% of the electricity it takes in each hour must be matched by renewable generation produced in that same hour. Those PPAs must run for a minimum of six years and be executed in a public deed, purely financial hedges and bare guarantees of origin do not count, and the guarantees have to be redeemed before the CNMC against the specific CUPS code of the site. Associated plants must have entered service within 36 months of the data centre being commissioned, widened from 18 months in the August draft.

Failure carries a tariff. A shortfall in additional renewable cover draws a surcharge on tolls and charges of 500% below 20% cover, 400% between 20% and 40%, 300% between 40% and 60% and 100% between 60% and 80%, while exceeding an annual limit on grid consumption hours attracts 65% in the first year, rising 10 points each consecutive year. Hourly correlation failures are penalised at between 10% and 100% of monthly billing. Access and connection permits can be lost outright where a site keeps additional renewable cover below 60% for five consecutive years, or misses hourly correlation by 20% or more over the same stretch. Sites operational before 31 December 2030 may instead opt into the Automatic Power Reduction System for five years, and in exchange get hourly correlation applied progressively at 60% to 70% across peak and off-peak periods. Every data centre with ICT power of 500 kW or more, whatever its access capacity, must report its energy and water consumption and its renewable use to the ministry before 15 May each year, and the figures are published openly.

Then Brussels stepped in. Demócrata reported on 4 November that the European Commission has written to the Spanish authorities about Article 5.1 of Directive (EU) 2015/1535, asking them to assess whether the draft must be notified through the TRIS procedure for technical regulations, and warning, with reference to Court of Justice case law, that omitting a mandatory notification is a procedural defect that can leave the affected provisions unenforceable against individuals. The Commission has not ruled that notification is owed; it says the first assessment belongs to Spain. The Council of State was asked on 27 October to give its opinion no later than 5 November, and the government has said it wants the decree through the Council of Ministers before the 29 November general election.

If you own or finance C&I load, PV or storage in Spain, the commercial content of this decree sits in the contracting and the metering rather than in the efficiency table. A six-year PPA in a public deed, matched hour by hour and reconciled against redeemed guarantees of origin, is a different instrument from an annual green supply contract, and storage sits inside the eligible set rather than outside it. Holders of access rights that are granted but not yet connected have a six month window to hand them back and recover their guarantees in full, so the value of a permit now depends on whether the site behind it can pass the test. Nothing is in force yet, and the text can still change before it reaches the gazette, which is an argument for modelling both versions rather than waiting for one.

Fusebox also builds software outside its standard modules, on the same platform that runs its VPP, and the Custom projects page sets out how: discovery that maps a client's assets, markets, data and existing tools, a working demo, then phased delivery, run on your infrastructure or ours with the code and the data staying yours. One of the builds listed there is port energy orchestration, where ships on shore power, terminal tractors, forklifts and pool EVs all compete for one limited grid connection, and charging staggers automatically so the site stays under its connection point. A Spanish site that has to hold an hourly limit and answer a reduction signal needs the same thing built around its own processes.

Talk to Fusebox about software that holds a connection point →

The Commission cut its 2027 list and dropped the energy taxation overhaul

On 4 November the Commission published its communication on the 2027 work programme. Norton Rose Fulbright counted 23 initiatives, against 38 in the 2026 programme and 45 in 2025, and described a clear shift towards implementation of existing legislation rather than new proposals, with the Commission urging the "rapid delivery of the key proposals already on the table". An energy post-2030 framework and simplification package sits on the list of new initiatives. Demócrata's run through the full annex describes it as a legislative proposal to update the Union energy framework once the 2030 horizon has passed, and places a separate proposal to speed up the granting of permits for strategic projects in the third quarter of 2027. The Commission warns that the dates in the annex are indicative.

The withdrawals carry more immediate information than the additions. Eunews reported 18 proposals pulled from the agenda, among them the directive restructuring the Union framework for the taxation of energy products and electricity, shelved on the grounds that it has sat before the Council for more than five years and is unlikely to win support within a reasonable timeframe, particularly because tax matters require unanimity. The European Deposit Insurance Scheme and the Environmental Claims Directive went the same way. Alongside the cuts, the Commission said it intends to set up a pact against gold-plating, with a review and removal mechanism inside the European Semester to help member states find and unpick overlapping national requirements.

For portfolio managers budgeting 2027 and 2028, the practical reading is that the electricity rules which will decide revenue in that period are already adopted or already in negotiation, and the EU pipeline is not going to add to them soon. Electricity taxation stays a national question, so the treatment of charging and discharging, and of double charging on storage, remains something to check market by market rather than something a Brussels directive will harmonise. The permitting proposal and the post-2030 package are the two files to keep a line in the plan for, and both are far enough out that an asset reaching commercial operation in 2027 will live under today's rules. If you want to compare how a given market treats a flexible asset today, you can also ask Fusie.

Talk to Fusebox about getting more out of the rules you already have →

Watch list

• The Council of State opinion on the Spanish decree, requested for no later than 5 November, and whether the government notifies the text through TRIS before taking it to the Council of Ministers (Demócrata).
• The six month window for holders of granted but unconnected access permits in Spain to renounce them and recover their guarantees in full, and the parallel six months to certify compliance before permits expire (Demócrata).
• The CNMC's semiannual monitoring reports on the Spanish regime, and the two-yearly evaluation with Red Eléctrica and the ministries, once the decree is in force (Demócrata).
• The energy post-2030 framework and simplification package, and what a simplification mandate does to the market design rules adopted in 2024 (Norton Rose Fulbright).
• The Commission's gold-plating pact and its review and removal mechanism in the European Semester, which is aimed squarely at national rules layered on top of EU ones (Eunews).