Powering Tower Cranes with the Enertainer

  • Project: South Clyde Energy Centre
  • Location: Glasgow
  • Customer: Careys

7 DAY SAVINGS

Fuel Savings

Diesel consumption
reduced by

0 L
Cost Savings

Total cost savings
on diesel

£ 0
CO2 Savings

Total CO2e
emissions cut by

0 T

Project Overview

The South Clyde Energy Centre in Glasgow is an Energy-from-Waste (EfW) facility under construction, designed to process 350,000 tonnes of non-recyclable waste annually and generate up to 45 MWe of lower carbon electricity, enough to power around 70,000 homes. This project, set to be operational by the end of 2026, supports Scotland’s 2025 landfill ban and aims to provide a sustainable energy solution for the region.

Project:

Energy-from-Waste (EfW) facility processing 350,000 tonnes/year

Output:

Generating up to 45 MWe annually, powering around 70,000 homes

Goal:

Support Scotland's 2025 landfill ban and provide sustainable energy

“At Careys we are committed to moving towards net zero carbon and have set commitments and had them validated by the SBTi.”

Daniel Evans - Head of Sustainability - Careys

The Challenge

Careys approached us to provide a power solution for a WOLFF 355 B crane at their site, located on a busy flight path, requiring aircraft warning lights to operate 24/7. The traditional approach would have involved a 550kVA generator to power the crane and a Hushpod (battery pack that provides power to the aircraft warning lights during down time). However, this solution would result in excessive fuel consumption, with the generator consuming approximately 3025L of diesel per week when operating at 50% capacity, totalling £4,235 in diesel costs per week. This high cost and significant fuel usage presents a major concern for companies like Careys, who are committed to achieving net-zero carbon emissions and improving localised air quality.

Power Requirement:

WOLFF 355 B crane and 24/7 aircraft warning lights on a busy flight path

Alternative Solution:

550kVA generator with a battery pack to power aircraft warning lights during downtime

Issues:

Excessive fuel consumption of 3025L diesel/week, representing a cost of £4,235/week

Wolff On Site Enertainer 2 scaled e1729003631303

The Solution

WOLFF Onsite provided the Enertainer unit along with a Stage 3 100kVA generator. The Enertainer, a compact Battery Energy Storage System (BESS), significantly reduces or even eliminates the reliance on diesel generators, paving the way for an emission-free future in the construction industry. With a continuous output of 475A, this innovative solution offers workers a stable power source that saves money, conserves space, and operates with ultra-low noise levels. Careys were planning to erect a second WOLFF 355 B crane, and had it not been for the grid connection they’d already purchased, we can confidently affirm that if required the Enertainer would have efficiently powered both cranes.

Provided by WOLFF Onsite:

Enertainer and 100kVA generator

Features:

Compact BESS, reduces diesel reliance, 475A output, cost-saving, low noise

Capability:

Efficiently power two WOLFF 355 B cranes if needed

Wolff On Site Enertainer scaled e1729003660893

“Diesel use forms 95% of our Scope 1 & 2 emissions and as such we have set a business target to reduce it year on year. Solutions such as the Enertainer for site power, cranes, and hoists, offer an economically viable way to be more efficient with diesel use when we do not have a grid connection. Saving us money, reducing carbon, creating less noise and reduced impact on local air quality.”

Daniel Evans - Head of Sustainability - Careys

The Outcome

The Enertainer unit provided a significant reduction in costs, diesel use, and CO₂e emissions for the South Clyde Energy Centre project. By eliminating the need for a traditional 500kVA generator and Hushpod, the solution saved 2654L/week in diesel and approximately £3715.64/week in diesel costs, while also avoiding £275/week in Hushpod hire costs for powering aircraft warning lights during downtime. This eco-friendly approach is not only a cost effective solution for Careys, but it aligns with their commitment to moving towards net zero carbon.

Enertainer and 100kVA Generator

Average Run Time of 100kVA Generator:
4 hours / day

Cost of Diesel:
£519.36 / week

Fuel Consumptions:
370.97L / week

CO2e Emissions:
0.93T / week

Disclaimer: This case study is based on 2.5 months of energy input data from a 110 kVa generator at a Careys site in Glasgow was conducted using the Enernet platform. Key calculations involved daily diesel consumption and generator running hours, assuming the generator operates at 50% capacity, 14.1 L/hr (confirmed by the site and AMPD team) with an efficiency of 2.9 kWh/L of diesel, a figure provided by the AMPD team based on the data obtained and the technical specifications of the generator.

Averages were derived for daily, weekly (Monday to Sunday), and monthly (March and April) periods based on the available data, using complete datasets for each period. For comparison, a Stage 3 550 kVa generator’s diesel consumption was analysed based on 50% utilization and 55 operational hours per week, based on industry expertise and customer experiences. Comparisons included average diesel consumption, costs (estimated using £1.40/L) and associated CO2e emissions (using the DEFRA GHG conversion tables, 2023).

All technical data and consumption figures are based on specific site conditions and are for informational purposes only and do not constitute professional advice, results may vary based on different operating environments.