Greenworks Optimus Z Review: Commercial Electric Zero-Turn Mowers That Challenge Gas

Introduction

When Greenworks Commercial showed off its 82 Volt Optimus Z line of zero-turn and stand-on mowers, the goal was straightforward: build the best ride-on lawn mowers possible and address every pain point along the way. The result is a battery-powered commercial mower line that delivers serious cutting performance, all-day runtime, and handling that should make even committed gas crews take a second look.

This review covers what makes the Optimus Z line different, how it performs, and which configuration might suit your operation.

Design Built Around the Battery

Rather than using the individual 82 Volt batteries found in Greenworks’ handheld tools, the Optimus Z line moves to much larger battery banks packing 8, 18, or 24 kilowatt hours. These are lithium iron phosphate (LFP) high-density packs, and they have been through some serious abuse testing, including drop tests from heights of up to 30 feet.

During the design phase, the product team placed the battery directly under the driver’s seat and built the rest of the mower around it. That decision shapes the whole machine: a lower center of gravity than other battery or gas options, a shorter and more compact footprint, and no dead space behind the seat where a gas engine would normally sit.

Power and Cutting Performance

All-day runtime is the usual stumbling block for commercial battery mowers, but the Optimus Z zero-turns can cut up to 21 acres on a single charge. On the performance side, while some electric mowers claim around 25 horsepower of gas equivalence, the Optimus Z pushes further, boasting the equivalent of a 65 horsepower, 1040cc gas engine thanks to direct-drive, electronically controlled brushless motors.

Blade tip speed is dialed in at 19,000 feet per minute, and Greenworks’ powertrac smart drive system lets the mower hold that blade speed even in thick grass, where gas mowers typically slow down. The result is a high-quality cut in just about any condition. These mowers also travel at up to 16 mph with the blades engaged, which is fast enough to serve as a transport speed between jobs.

Slope Handling and Center of Gravity

The low-mounted battery does more than improve the footprint. It gives the Optimus Z a lower center of gravity than comparable battery or gas machines, which helps it safely mow slopes up to 25 degrees. For commercial crews that regularly work on uneven or sloped properties, that stability margin matters as much as raw power.

Configurations and Options

The Optimus Z line spans several zero-turn and stand-on models with different battery capacities and deck sizes:

• Small stand-on models: 8 kWh battery, available in 32 and 36 inch deck sizes
• Larger stand-on models: 18 or 24 kWh battery, in 48, 52, and 60 inch decks
• Zero-turn models: 18 or 24 kWh battery, in the same 48, 52, and 60 inch deck options

Greenworks has also previewed an automated line of zero-turn mowers using RTK GPS (real-time kinematics), accurate down to one inch. Planned as two-in-one machines, they can run autonomously in more dangerous conditions or be operated traditionally by a human driver, with launch expected in late 2023.

Things to Consider Before Buying

Pricing for the full line has not been officially confirmed, but early numbers suggest the 60 inch zero-turn will run close to $26,000. That is a serious investment, so it is worth arranging a demo before committing. It is also worth noting that the automated RTK models are still upcoming rather than available today.

Buying Advice for Commercial Crews

The battery-powered zero-turn market is more crowded than ever, and the industry is clearly shifting away from gas. The Optimus Z line is developed enough that it presents one of the more effective ways for professional crews to transition off gas entirely, or to add a fully electric crew and trailer alongside an existing fleet.

Even die-hard gas-powered crews owe it to themselves to try one. The controls feel familiar, and the power these battery mowers deliver has to be experienced to be believed. If you are considering an Optimus Z mower, request a demo and match the battery capacity and deck size to your typical property mix.

Conclusion

The Greenworks Optimus Z line takes a genuinely thoughtful approach to commercial electric mowing: a battery-first design with a low center of gravity, up to 21 acres per charge, gas-equivalent power that holds blade speed in thick grass, and configurations ranging from compact stand-ons to 60 inch zero-turns. For crews ready to move beyond gas, it is one of the most compelling options on the market.