Electric heavy equipment, electric heavy machinery, electric construction vehicles, or electric construction equipment, refers to a subcategory of heavy equipment propelled by electric motors. The majority of electric heavy equipment uses electrical energy stored in an onboard battery which makes them battery electric vehicles. For construction machines that are rarely moved, such as stationary excavators, a cable connection can also supply power. Electrified heavy machinery is considered a key development in the decarbonisation of the construction sector.
The introduction of electric heavy equipment follows the introduction of other heavy electric vehicles such as electric trucks. The requirements for construction machinery are highly diverse and pose a number of challenges for electrification. For example, mobile charging infrastructure is often required because most construction machinery cannot be relocated for charging. The required power and battery sizes can far exceed those of electric trucks and extreme temperatures, for example in road construction, challenge the temperature management of the batteries.
Development In 2012, Caterpillar presented the Cat 336E H, a hybrid crawler excavator weighing 37 tonnes. It saves up to 25% fuel through recuperation when braking the bucket. This was an important early milestone in the electrification of heavy equipment.
A 2017 study by IDTechEx Research analysed the potential of electric vehicles in construction, agriculture, and mining over the next 10 years up to 2027. The study found that the major manufacturers were still focusing on machines with hybrid drives, while other companies already offer small, fully-electric construction equipment. The sector was forecast to grow to 165,000 vehicles or USD 81 billion by 2027.
In 2017, Volvo and Skanska conducted a 10-week test of an electric quarry. Autonomous HX2 transporters and an EX1 wired excavator based on the EC750 model were used.
Also in 2017, the eDumper, an electric dump truck from Komatsu in cooperation with Kuhn Switzerland and Lithium Storage was presented. It has a 600 kWh battery and can transport loads of 55 tonnes. At the mining site where it operates, it even has a positive energy balance, as it travels uphill empty and can recuperate more energy on the way back than it needs due to the weight of the transported material.
In 2018, Cummins and Hyundai joined forces to enter the development of electric construction machinery. The first target was a 3.5-tonne compact excavator with a 35.2 kWh battery that could be used for a full eight-hour shift. A prototype of the R35E was unveiled in 2019.
In 2019, a report by McKinsey & Company found that in certain areas, the total cost of operating electric construction machinery was already 30% lower than comparable diesel models. The acquisition costs were calculated to be 30 to 90% higher, but the operating costs over 60% lower.
Since 2019, the company Pon Equipment has been offering converted 323F crawler excavators from Caterpillar as the so-called Z-Line. These machines have been converted with 300-kWh, 3.4-tonne batteries and are designed to work for up to seven hours.
In 2022, the Bauma trade fair chose "The Road to Zero Emissions" as one of its leitmotifs. Several electric construction machines were announced and presented, including tandem rollers, concrete mixing trucks, and the world's first all-electric T7X skid steer loader from Bobcat.
The "Electric Worksite" study conducted 2024 in Gothenburg with the participation of Volvo, investigated the feasibility of fully-electric construction sites using real examples in the city. Electrically-powered mobile and crawler excavators, wheel loaders and load carriers weighing between 3.5 and 30 tonnes were used, which were supplied with power either by battery or via cable connections.
A study by IDTechEx Research from 2024 states that the market for electric vehicles in construction was previously held back by high investment costs and customer reluctance due to limited battery capacities and small model selection. However, it was also observed that the entry phase of many manufacturers with small construction machinery and battery sizes comparable to electric cars is coming to an end and the trend is moving towards larger machines that can cover the full range of the construction machinery market.
In 2025, climate neutrality and alternative drives were the central themes of the Bauma trade fair.
Advantages and disadvantages
Advantages Electric heavy equipment can be operated in a climate-neutral way. They produce no local emissions, such as CO2 or nitrogen oxides, and are significantly quieter in operation than comparable heavy equipment with internal combustion engines. Electric motors require little maintenance and have high energy efficiency, which leads to lower operating and energy costs.
The low-noise operation makes them particularly suitable for use in noise-sensitive locations such as residential areas or allows for use during sensitive times, for example at night. The absence of exhaust fumes makes electric construction machinery ideal for poorly-ventilated environments such as tunnels and indoor areas. Both also reduce the strain on operators and other workers on construction sites and comply with increasing environmental regulations.
Electrification of the drive system is accelerating the introduction of electronic systems in construction machinery and is also making automation easier.
Using the example of a 10-tonne standard excavator, a study by IDTechEx calculated annual costs for diesel of USD 6,500 in 2024, while the electricity for the electric model would cost USD 3,350.
Disadvantages At present, electric heavy equipment is still significantly more expensive to purchase and may also require additional investment in charging infrastructure. The price premium compared to comparable models with combustion engines is between 50% and 100%.
The possible working time without charging breaks is limited by the battery capacity. While larger batteries increase the purchase price, smaller batteries require good integration of the charging process into the operation. The high weight of the batteries is often not a disadvantage, which enables the use of cheaper variants such as LFP batteries and, if necessary, replaces some of the counterweights required for excavators and cranes.
Charging infrastructure Various concepts are being developed for the charging infrastructure of heavy machinery, which are optimised for different types of construction sites. For stationary excavators or machines that are only slightly mobile, a local power supply via cable is a good option, if possible. Construction machinery that is only used for short periods on small construction sites and is easy to move can be charged at the construction company's depot or at public charging stations. For other construction sites, it may be necessary to set up mobile fast charging stations that either use an existing power grid or are supplied via mobile power storage units that have to be brought to depots for charging.
Distribution According to an estimate by Custom Market Insights, the global market for electric construction equipment was valued at USD 14.5 billion in 2024 and is expected to grow to USD 37.4 billion by 2033.
So far, the main drivers of the spread are initiatives and guidelines from governments and municipalities, but also the low long-term maintenance costs.
Public funding Municipal initiatives are incentivising companies to use electric machines. Berlin has pilot projects with fully electric construction machinery. Initiatives in Oslo, Copenhagen, and London are aiming for climate-neutral operations by 2030. Helsinki is part of a Finnish Green Deal initiative for emission-free construction sites and is already demanding electric excavators for selected construction sites.
Categories
Excavators Large excavators ModelBrandWeightPowerBattery capacityOperation timeCharacteristicsPC4000-11EKomatsu409 t1400 kWN/AunlimitedUsed in mines with power connectionZE135Hitachi14.6 t300 kWh6 hDX300LC ElectricDoosan32.3 t145 kW390 kWh8 hexchangeable batteries145 X-TierJohn DeereunknownunknownunknownunknownPC210E-11Komatsu24 t123 kW451 kWh8 hEC230 ElectricVolvo21 t160 kW450 kWh4–5 h
Mini and compact excavators Mini and compact excavators are hydraulic excavators that are used in light earthworks, gardening and landscaping and generally weigh a maximum of 8.5 tonnes. ModelBrandWeightPowerBattery capacityOperation timeZE19-THitachi2 tunknown26,4 kWh4 hZX55U-6EBHitachi5.3 t33 kW40 kWh2 hZEX85-6EBHitachi8.8 t40 kW133 kWh5.5 hDX19 ElectricDoosan2.1 t15 kW32 kWh8 hPC138E-11Komatsu15.3 t72,5 kW225.6 kWh8 hPC33E-6Komatsu3.6 t17,4 kW35 kWh3 h9C-1EJCB1.9 t20 kW19.8 kWh4 hKX38-4eKubota4 t17.8 kW49.2 kWh5 hECR25 ElectricVolvo2.6 t18 kW40 kWh4 hECR18 ElectricVolvo1.8 t18 kW16 kWh5 h
Loaders ModelBrandWeightPowerBattery capacityOperation timeL25 ElectricVolvo4.9 t22 kW40 kWh8 hL90 ElectricVolvo15 t140 kW180 kWh4–6 hL120 ElectricVolvo20 t228 kW282 kWh5–9 h5065eKramer3.9 t23.2 kW37.5 kWh4 hT7XBobcat5.7 t75 kW72.6 kWh6 h580EVCASE9 t80 kW72.7 kWhunknownRT220-2eKubota2.2 t6.5 kW25 kWhunknown
Bulldozers ModelBrandWeightPowerBattery capacityOperation timeCharacteristics"All-electric underwater bulldozer"Komatsuunknownunknown500 kWh6 hBulldozer for underwaterML 6 MoonlanderLumina32 t552 kW414 kWhunknowncan be used autonomously
Graders modelbrandweightpowerbattery capacityoperation timeBG 120 TA-EHBM-NOBAS15.5 t110 kW325 kWh8 h
Transporters Trucks with road licences are often used to transport construction materials. Specialised vehicle types for construction sites such as dump trucks are listed here.
Dump trucks ModelBrandWeightPowerBattery capacityOperation timeCharacteristicsA30 ElectricVolvo29 t265 kW245 kWhunknownA40 ElectricVolvo39 t350 kW350 kWhunknowneDumperKomatsu45 t588 kW600 kWhunknownrecuperates more energy than it consumes
Material handlers
Mobile cranes ModelBrandWeightPowerBattery capacityOperation timeCharacteristicsMK5150XLe Plug-in-HybridManitowoc60 tunknown180 kWh5 hFully-electric use in crane operationLR 1250.1 unpluggedLiebherr212 t255 kWunknown8 hLR 1300.2 SX unpluggedLiebherr293 t438 kW392 kWh13 h653 ESennebogenunknown130 kW210 kWh14 h
Telehandlers ModelBrandWeightPowerBattery capacityOperation timeCharacteristics525-60EJCB5.1 t39 kW24 kWhunknown17.45Faresin12.1 t51 kW45 kWhunknown
Highway engineering Some heavy equipment is specialised for highway engineering.
Pavers ModelBrandWeightPowerBattery capacityOperation timeMINI 500eVögele1.5 tunknown21.5 kWhunknownSUPER 1300-5eVögele11 tunknown126 kWhunknownSD1800W eDynapac10.3 t55 kW98 kWhunknown
Road rollers ModelBrandWeightPowerBattery capacityOperation timeDD25 ElectricVolvo2.7 t96 kW20 kWh4 h
Concrete handling
Concrete pumps ModelBrandWeightPowerBattery capacityOperation timeCP 2800 BESchwing Stetter13.5 t112 kW112 kWh8 hprototypeVolvo32 t330 kW360 kWhunknown
Concrete mixing trucks ModelBrandWeightPowerBattery capacityOperation timeETM 1005/1205Liebherrunknown500 kW340 kWhunknownFMX electric concrete mixerVolvounknown330 kW360 kWhunknown
Compactors
Rollers ModelBrandWeightPowerBattery capacityOperation timeBW 177 DH eBOMAG7 tunknown78 kWhunknown
Drilling rigs ModelBrandWeightPowerBattery capacityOperation timeLB 16 unpluggedLiebherr59.4 t265 kWnone10 h
See also Electric vehicle
References