The IEA Says Half of All Cars Sold Worldwide Could Be Electric by 2035 — Here's What That Means for Your Home

The IEA Says Half of All Cars Sold Worldwide Could Be Electric by 2035 — Here's What That Means for Your Home

The International Energy Agency projects that by 2035, electric vehicles could account for roughly half of all new car sales worldwide — even without any new government policy support driving that adoption. Under that projection, the global EV fleet (excluding two- and three-wheelers) could grow to as many as 510 million vehicles on the road, up from nearly 80 million today. That's more than a six-fold increase in less than a decade, and it carries real implications for home electricity demand.

Why This Projection Matters

IEA projections carry weight because the agency's baseline scenarios are typically built on current market trends and existing policy commitments, rather than aspirational targets. A projection that EVs could reach half of global car sales "even without new policy announcements" suggests this isn't primarily a story about government mandates — it's a story about EVs increasingly making economic and practical sense on their own merits as battery costs fall and charging infrastructure expands. For context, the current global EV fleet of roughly 80 million vehicles already represents enormous growth from a decade ago, when EVs were a niche product. A further six-fold increase by 2035 would represent one of the fastest vehicle technology transitions in automotive history.

What This Means for Electricity Demand

Every one of those hundreds of millions of additional EVs needs to charge somewhere, and for most owners, that means charging at home. This is a meaningful driver of the broader electricity demand growth story that utilities are already planning for — alongside AI data centers, building electrification, and population growth. Edison International, for example, has cited electricity demand projections rising as much as 80% by 2045 in its own service territory, with EV adoption cited as one of the primary drivers alongside electrification and new commercial loads. For California specifically, where EV adoption has historically outpaced the national average, this trend is likely to play out even more intensely than the global average suggests.

What This Means for Homeowners

For homeowners, the practical implication is twofold. First, EV charging at home is likely to become an even larger share of household electricity use over the coming decade — making charging strategy (timing charging for off-peak hours, or pairing it with solar and battery storage) increasingly important for managing costs. Second, this demand growth adds to the broader pressure on grid infrastructure that's already driving utility rate increases across California, reinforcing the value of generating and storing your own electricity rather than relying entirely on grid power that's becoming more expensive and more in-demand.

Bottom Line

The IEA's projection that EVs could reach half of global car sales by 2035 isn't a distant hypothetical — it's a continuation of a trend already well underway, and it points to a substantial increase in home electricity demand over the next decade. Homeowners who plan now around smart charging strategies and on-site generation will be better positioned to manage that demand growth without it showing up entirely as higher monthly bills.