Overhead line trucks: a cost‑effective way to cut CO₂

Commissioned by the Ministry of Infrastructure and Water Management (IenW), Decisio examined the cost‑effectiveness of Electric Road Systems (ERS) in the Netherlands, in collaboration with Sweco and EVConsult.

An overhead line above the right lane of our motorways, enabling trucks to drive electrically? Yes, it’s possible and it can also be cost‑effective. Our study into the potential of an ERS network in the Netherlands shows that trucks using ERS can operate with a significantly smaller battery. This can make ERS more attractive than a fully battery‑electric solution. ERS proves to be a cost‑effective way to reduce CO₂ emissions because it enables faster electrification of freight transport. However, several conditions and uncertainties remain.

Photo credit: Siemens

Electric Road Systems: cost‑effectiveness examined in detail

If cost‑covering tariffs are charged for using the ERS network, a sufficiently large group of transport operators would find it attractive to invest in ERS‑equipped trucks, not only compared to battery‑electric trucks (BEVs), but also to diesel or hydrogen trucks.

The per‑kWh tariff for using the ERS network is competitive with that of BEVs, diesel trucks and hydrogen trucks. As a result, investing in ERS trucks can be appealing for a large share of the market. This is particularly true for medium‑distance daily operations (180–300 kilometres), and even more so for long‑distance transport (over 300 kilometres per day). For international ERS freight transport, the availability of an international ERS network is, of course, a key requirement. The study also shows that ERS is not financially viable on a single corridor alone.

A large‑scale Electric Road Systems network is needed

The major drawback of ERS is that a substantial network must be built from the outset, and it only becomes economically viable if it is used sufficiently. The biggest threat to the success of an ERS network is the rapid improvement of battery technology, increasing range, reducing weight, and lowering purchase and charging costs. If battery‑electric trucks become significantly more attractive, ERS usage may fall short of expectations, making the system no longer viable. These uncertainties make decision‑making challenging.

Read the report

The full report on the cost‑effectiveness of ERS can be found here.