Microtunneling

Reliable, Low-Emission Power for Microtunneling

High-Torque Performance. Zero-Interruption Progress. Microtunneling demands extreme precision and massive bursts of power that can strain even the most robust site setups. An Ampd ESS provides the power buffer needed to handle the high-torque demands of a Tunnel Boring Machine (TBM) and slurry pumps.

The challenge vs the solution

Why an Ampd is so powerful?

The Challenge

High-Torque Starts vs. Traditional Power

Microtunneling demands absolute precision, but traditional diesel generators are often the weak link. Their mechanical systems aren't designed to react instantly to the sudden, high-torque surges required when a Tunnel Boring Machine (TBM) encounters changing soil densities.

The erratic load patterns of hydraulic pumps, slurry systems, and jacking stations cause traditional engines to ramp up and down constantly, leading to fuel waste and excessive wear. In tight urban environments, the resulting noise and exhaust can also lead to permit restrictions and community complaints.

The Solution

Intelligent Energy Storage

Pairing your generator with an Ampd Battery Energy Storage System (ESS) creates a localized "microgrid" for your site. The ESS handles the massive current spikes required for TBM startup, allowing your generator to run only during its peak efficiency window or for just a few hours a day.

By utilizing an ESS to manage peak loads, operators can maintain continuous forward motion, slash fuel overheads, and significantly reduce the noise and emissions footprint of the project.

Downsized Power Costs

Power high-torque TBMs and slurry pumps with smaller, more efficient generators, reducing both rental and fuel expenses.

Urban-Friendly Operations

Achieve a near-silent site and zero local emissions, making it easier to secure permits for tunneling in densely populated areas.

Uninterrupted Progress

An Ampd acts as a vital power buffer, ensuring consistent torque and preventing machine stalls during critical drives.

Microtunneling

Engineered for the Boring Cycle

Microtunneling operations face more power surges and volatility than many realize. An Ampd provides the "muscle" for every stage of the drive:

TBM Cutter Heads

Provides instant high-amp startup support to prevent voltage dips during initial torque-up.

Jacking & Slurry Pumps

Maintains smooth, reliable operation of high-pressure pumps without destabilizing the site power system.

Separation Plants

Operates centrifuges and shakers efficiently, buffering the load to prevent generator "tripping"

Electric Gantry Cranes

Delivers high powerbursts for pipe lowering and soil removal without disrupting wider site power.

Safety & Ventilation

Keeps life-critical air filtration and communications online even during primary power outages.

Ampd Product Range

Discover the range of products we have that can answer your on site power needsProducts

our products
why ampd?

Ampd ESS benefits

Reduce OPEX
Whisper Quiet
Reduce On-site Emissions
Redundant Power
Reduce Personnel
Greater Resilience & Availability
Built-In Deployments Availability
Improved Health & Safety
Rugged & Mobile
3rd Party Controller Integration
examples

Example Use Cases with Similar Power Profiles¹

Boring & Drilling

• 1.5 year Purchase pay back period²
• 66% Reduction in CO2 emissions
² 0.9yrs with Investment Tax Credit (USA)

High Volume Pumping

• 7 month Purchase payback period
• 94% Reduction in CO2 emissions Site

Concrete Batching

• 2.2 year Purchase payback period
• 50% Reduction in CO2 emissions

General Construction

• 1 year Purchase paybackperiod
• 72% Reduction in CO2 emissions

¹Examples are provided for illustration purposes only. Outcomes will depend on the specifics of each case

Visit our Case Studies page to read real world examples of customers that have already benefited from having an Ampd. Alternatively get in touch and we can give you a full cost breakdown, fuel savings, and CO₂ avoided for your site.

Ready to power your next project with an Ampd?

Your local specialist can give you a full cost breakdown, fuel savings, and CO avoided for your site.

get it touch