The impact of reaching 40% electric vehicle market share

The 40% electric threshold and its economic fallout

A fleet where four out of ten cars are plugged in is more than just a green statistic. It means the closure of gas stations, the shuttering of specialized workshops, and spare part shortages for those still driving diesel vehicles. This is the starting point of the debate: exceeding 40% electric vehicle adoption would trigger a chain reaction of consequences, many of which remain unseen. First, the collapse of fossil fuel service stations as they begin to close. Second, traditional mechanical workshops, as electric vehicles require up to 60% less maintenance—there is no oil to change or timing belts to replace. Beyond this threshold, spare parts for combustion engines could become scarce, alongside a projected rise in insurance premiums. This phenomenon is expected to be most visible in advanced transition economies, with Norway serving as a primary example.

Impact on agriculture, trucking, and construction

The first blow to the narrative comes from the countryside. Agricultural machinery relies on combustion engines, and there is no plug-in substitute in sight for a tractor working fourteen consecutive hours. The same applies to trucks, coaches, construction machinery, and quarry vehicles. Given this reality, the prevailing conclusion in much of the discussion is that the electric fleet will never reach 40%. This is a significant detail: if the transition fails to cover heavy transport and the primary sector, the percentage will remain limited to urban areas and tourism.

The list of requirements to sustain that 40% share is also far from optimistic. Electricity prices would rise, not only due to increased consumption but also because of the need to oversize medium and low-voltage networks, especially in cities, with new connections to buildings. Specific zones for charging stations would need to be created on highways, complete with adjacent recreational areas. Street-side poles would be required to charge cars for those without private garages. Furthermore, plants for recycling batteries—which are not widely recycled today—would be essential, along with new workshops, of course.

The electrical grid: the unaddressed bottleneck

Here, the consensus is uncomfortable. According to current data, more than 80% of electrical substations in Spain lack available capacity. The current grid is already at its limit due to a lack of investment, to the point where productive investments are being denied because capacity is unavailable; 60 billion euros from the industrial sector are currently blocked for this reason. Adding a massive influx of electric vehicles, combined with the voracious demand from artificial intelligence and data centers, has a clear victim: the electricity bill.

Field experience reinforces this argument. In one specific area, four power outages were recorded in a single week—two of them lasting two hours or more—plus an additional outage to service a neighborhood transformer. This occurred despite having only an electric scooter and a low contracted power limit. The looming question is what will happen when these transformers are subjected to the full load of a plugged-in vehicle fleet.

Community garages: the challenge of charging without a private space

The debate moves to the local level. In single-family homes or private garages, it works fine. However, in residential neighborhoods built in the 70s and 80s—not central, but close—where there are no garages within a kilometer and cars are parked tightly together, no solution is apparent. Relying on daily charging with the current infrastructure is described, bluntly, as a serious problem.

Some suggest the most obvious way out: slow-charging points in street parking spaces, operated by city councils and concession companies. While this would make the investment profitable, it creates a perfect vicious cycle: without enough electric vehicles, the infrastructure cannot pay for itself, and without infrastructure, those living in apartments without garages cannot buy one.

The business of cables and increasingly scarce spare parts

The transition also creates side economies. The sale of charging cables is emerging as a profitable business, to the point where copper theft by metal enthusiasts is already being recorded. For those still using internal combustion engines, the problem is not in the future: cars over ten years old already struggle to find spare parts. The guarantee of parts supply usually covers ten years from the manufacture of the last model, leaving older vehicles at the mercy of the international market.

Taxation is the other side of the coin. Combustion vehicles pay a significant amount in taxes that electric vehicles avoid. When the tide turns, the adjustment will not be pleasant: there is already a vision of the relevant Ministry (the government department in charge) turning emergency beacons into permanent trackers to charge per kilometer driven.

The Norwegian precedent and the unanswered question

The Nordic model is mentioned repeatedly. Norway is the country leading the way, and there, the consequences of the shift in the automotive fleet are already visible. The lingering doubt is how much of that model is exportable to a country with different density, a different grid, and different taxation. The most optimistic calculations assume the infrastructure will pay for itself; the pessimistic scenario assumes the grid cannot even handle the current situation.

Given these factors, the question is not whether 40% is desirable, but whether it is physically possible with the existing grid and with agriculture, trucking, and construction left out of the equation.