Can Spain achieve energy self-sufficiency?

The answer is neither yes nor no. It depends on the type of energy.

Spain produces ever more renewable energy, but still depends on imports for a large share of its energy consumption.

In 2024, external energy dependency stood at 68.9%.

Electricity: where progress is real

Electricity is the sector where Spain has advanced the most. In 2024, 56.82% of the mix was renewable — wind, solar and hydro leading the way. In absolute terms, Spain generates enough electricity to cover domestic demand for most hours of the year.

Renewable mix 2024

56.82%

Net imports

10.227 TWh

Share of demand

4.13%

But the net balance of international exchanges was 10.227 TWh imported (4.13% of peninsular demand). Expanding storage and interconnections is the condition for progressing towards electrical self-sufficiency.

Oil: the major structural weakness

Oil dependency

100.4%

Transport / final consumption

42.7%

Spain produces no meaningful volumes of oil. Import dependency reaches 100.4% of available crude. And transport — which accounts for 42.7% of total final energy consumption — runs almost entirely on oil derivatives. This is the hardest external exposure to reduce in the short term.

Gas: high dependency, but geopolitical flexibility

Gas dependency

97.4%

Entry via LNG

60.4%

External gas dependency stands at 97.4%. But Spain has a structural advantage: 60.4% of gas arrives as LNG (liquefied natural gas), allowing far greater supplier diversification than a country tied to fixed pipelines. Biomethane can complement in the long run: Spain's technical potential is 163 TWh/year — 45% of gas demand — though current production is almost negligible (0.41 TWh).

Storage and interconnections: the bottleneck

Electricity storage (pumping + batteries) delivered 5.458 TWh in 2024 against peninsular demand of 247.42 TWh. Interconnections with Europe remain low: the net import balance represented 4.13% of demand. Without expanding both capacities, electrical self-sufficiency — even with a majority-renewable mix — remains constrained by the variability of wind and sun.

Summary by sector

Sector	Current situation	Main challenge
Electricity	56.82% renewable	Storage and interconnections
Oil	100.4% dependent	Electrification of transport
Gas	97.4% dependent	Biomethane and industrial efficiency
Transport	42.7% of final consumption	High fossil dependency

The conclusion that is neither yes nor no

Spain has the potential to significantly reduce its energy dependency, especially in renewable electricity. But achieving full self-sufficiency remains very difficult given the weight of oil, gas and the stability requirements of the system.

What the data tells us

1 Electricity is the sector where Spain advances most: 56.82% is already renewable.

2 Oil is the hardest exposure to reduce: 100.4% dependency and transport as the main consumer.

3 Gas has high dependency but greater flexibility thanks to LNG and biomethane potential.

Where Spain's electricity comes from

The 2024 electricity mix: 56.82% renewable.

Spain's energy dependencies

External dependency of 68.9% and European comparison.

Where Spain imports energy from

Oil, gas, LNG and electricity exchanges.

The role of natural gas

Use by sector and entry via LNG or pipeline.

What is biomethane and Spain's potential

Technical potential of 163 TWh/year.

How electricity storage evolves

Pumping and batteries: charge and delivery series.