The idea of fully electric mobility is increasingly promoted as the main solution to reduce environmental impact. However, while I understand the importance of a green transition, I remain doubtful that electric is 100% the right path. In this article, we critically explore the main challenges related to the mass adoption of electric cars and assess whether they really represent a sustainable alternative for everyone.
1. Charging Stations for Everyone: Dream or Reality?
The expansion of the charging station network is one of the most discussed aspects of the transition to electric. Currently, there are just over 20,000 public charging points in Italy, an insufficient number to support a future in which millions of electric vehicles will need to charge daily.
- Exorbitant costs and long times : Installing columns in every parking lot requires huge investments and long construction times. The risk is that the infrastructure cannot keep up with demand.
- Problematic maintenance and poor service : Many users already complain about non-functioning stations, a problem that risks getting worse with an all-electric fleet. Without adequate maintenance, the promised benefits of electric remain inaccessible.
- Potential queues and overcrowding : With insufficient charging stations, motorists may face long waiting times, especially during rush hour, drastically reducing the practicality of electric cars.
2. The Electric Grid: Ready to Support Millions of Electric Cars?
Large-scale electric mobility would require a substantial increase in the capacity and resilience of the electricity grid. Today, the energy grid is often under pressure from peak consumption, and adding millions of electric cars risks overloading it even further.
- Network fragility and risk of blackouts : Blackouts and overloads are already common problems, especially in the summer. The prospect of millions of cars charging could worsen the situation, raising serious doubts about the reliability of the network.
- High costs and energy dependence : Italy and many other countries are still heavily dependent on energy imports. If electricity demand grows, prices could rise, making charging much more expensive and undermining the convenience of electric.
- Smart Grids and Storage: Experimental and Expensive Projects : Smart grids and energy storage can help better manage demand, but they are still experimental solutions, which will require years of investment to be operational on a large scale.
3. The Charging Challenge for Apartment Dwellers
Charging accessibility is one of the main obstacles for those who live in apartments, without a private parking space. This gap can make charging a frustrating experience, especially for those who live in urban areas.
- Differences in access to charging : While homeowners with garages can conveniently charge at home, those who live in apartment buildings rely on public charging stations. This creates a significant disparity, making electric less viable for many.
- Logistical inconveniences : Looking for a free charging station and having to go back to unplug the car becomes a burden for those who cannot charge at home. Charging takes longer than refueling, a difficult inconvenience to manage in the daily routine.
- Technological solutions still a long way off : Wireless and dynamic charging, while promising, are still in development and won’t be available for years. In the meantime, city dwellers may find themselves at a disadvantage compared to those with access to private charging points.
4. Charging Costs: An Uncertain Convenience
The cost of charging is often presented as an advantage of electric cars, but the future of electricity prices raises questions about their long-term economic sustainability.
- Electricity Rates Rise : Growing demand for electricity could lead to higher rates, especially in the context of a global energy crisis. If prices rise, charging could become much less convenient than expected.
- High cost of public charging : Public charging stations, especially rapid ones, are already more expensive than home charging. If these rates increase, those who cannot charge at home could be at a disadvantage.
- Limited advantages for those without home charging : Those who can charge at home enjoy significant advantages over those who must rely on public stations, creating inequality between users.
5. Emergency Vehicles and Heavy Haulage: Is Electric Really Suitable?
The transition to electric also extends to heavy-duty and emergency vehicles, but in these sectors current battery technologies raise further questions.
- Reliability for Emergency Vehicles : Ambulances and other emergency vehicles must deliver consistent performance. Battery charging and range can be a critical constraint for emergency situations.
- Electric trucks for long distances: A complex challenge : Electric trucks are already in use for short distances, but for longer routes and heavy loads the current technology is not yet adequate. Solutions such as hydrogen or alternative fuels could be more effective and sustainable.
- Dedicated infrastructure for heavy vehicles : For trucks, high-power charging stations would be needed, which require significant resources and space, creating further infrastructure challenges.
Conclusions: The Road Towards a Truly Sustainable Future
I am in favor of a green transition and understand its importance. However, the complete electrification of the vehicle fleet raises questions of practical, economic and infrastructural sustainability that deserve in-depth reflection. While having clear environmental benefits, purely electric mobility may not be the optimal solution for everyone.
- A flexible and mixed strategy : The mobility of the future should combine different solutions – electric, hydrogen, biofuels – to meet the needs of each sector and housing context.
- Real sustainability, not just a facade : For the transition to be truly sustainable, it is essential to address the issues related to production, battery disposal and energy distribution. Without concrete answers to these issues, the risk is to achieve only partial sustainability.
Electric mobility is a step in the right direction, but it remains a complex path, in which the balance between benefits and compromises will be crucial for a truly sustainable future.
2 comments
Max
Dimenticavo le simpatiche batterie al Litio.
Servono milioni di litri di acqua dolce (solo il 2% dell’acqua del pianeta) per estrarre i pochi Kg di litio per fare 10 pacchi di batterie per 10 auto e tutto questo mentre i dati satellitari missione GRACE indicano costante calo della piovosità da cui si deriva la curva siccitosa da crisi idrica in cui il pianeta sta andando.
L’auto elettrica è una genialata che dice chi dobbiamo mandare a scuola levandogli contestualmente ogni potere decisionale.
Max
L’auto elettrica è una scemenza termodinamica.
Un futuro realmente sostenibile è impossibile se non cambiamo la programmazione genetica di specie dato che vogliamo sempre di più e siamo pure capaci di aprire le estrazioni di energia avendo compreso alcune leggi della fisica.
Peccato che non essendo noi matrigna natura (soggetto inesistente come cervello pensante, ma intesa solo come insieme completo delle leggi fisiche che procedono in una specifica freccia termodinamica dell’energia dall’ordine al caos) la quale è fatta solo di leggi fisiche in diseguaglianza (termodinamica Von Clausius), andiamo ad affrontare in modo regolare alte barriere di energia e così facendo produciamo bassa efficienza di resa in energia per lavoro utilie con alto livello di produzione di entropia.
La corrente elettrica è fatta di elettroni e conseguente campo EM ed è una delle 4 forze della natura a noi note separatesi poco dopo il Big Bang (vedasi Gamow) ed è anche in meccanica quantistica la migliore Teoria fisica che abbiamo, la Elettrodinamica Quantistica.
Senza andare in cose troppo complicate.
Ha un inguarbile difetto, è la più ordinata.
Trovandosi in un universo che corre verso il caos ed essendo la più ordinata ne cosnegue che risulta essere la più costosa energeticamente da estrarre e stoccare e questo status non farà che aumentare visto che stiamo andando verso il caos, dove per farlo usiamo macchine costruite senza sapere tutte le leggi della fisica e che pertanto sono fatte con barriere d’energia molto alte da superare.
Tutto questo rende molto comiche le dichiarazioni di rendimento a valle, ovvero le dichiarazioni di effiicienza di motore elettrico alternatore con inverter e batteria al 90%.
Per produrre quella corrente abbiamo consumato una quantità di fossili enormi producendo calore con una efficienza di trasformazione del 30% in elettrica, la quale va poi trasportata su reti a media e poi alta tensione (doppia trasformazione e doppio sfasamento Cos fi) per essere poi riportata a bassa tensione (si perde energia per campo EM ed effetto Joule durante la corsa degli elettroni nei cavi conduttori e si perde pure induttanza nelle trasformazioni di tensione su corrente alteranata il Cos fi), da cui produciamo poi energia meccanica usando l’alternatore come motore e non vedo mai i costi energetici di trasporto sulle linee di rete elettrica quanto l’assorbimento dell’inverter e del regolatore di tensione e corrente dell’auto.
Per cui di quel 30% ne perdiamo un ulteriore quota come minimo del 25%, per cui 30/4=7,5 da cui 30-7,5=22,5.
Questa è la reale energia che partendo dalle fossili portiamo nella batteria perchè non ho voglia di andare a levare anche il costo di raddrizzamento e ricarica della batteria, tanto si capisce già che è una scemenza termodinamica.
La macchina elettrica ha una reale resa termodinamica massima di 22,5% sulla fossile iniziale da cui proviene la sorgente energetica primaria e che comunque viene usata essendo impossibile uscire dalle fossili per via della impossibilità dell’esistenza di macchine reversibili si veda R. Feynman in Lecture on Physics.
Avevamo ottimi diesel a efficienza termodinamica >35%.