BESS 300 Battery Energy Storage System

Greenwatt offers a pre-integrated containerized BESS 300 Battery energy storage system for off-grid sites. You can deploy this mobile power solution within hours – no civil works or grid connection needed. With solid-state batteries and modular capacities from 300 kWh to 500 kWh, it supplies clean power to mining camps, construction sites, and remote villages. Order Greenwatt battery energy storage system today to replace diesel generators and cut fuel costs.

Send Inquiry

Product Description

BESS 300 Battery energy storage system

How much cost can be saved by replacing traditional diesel-powered tower crane systems with the Greenwatt BESS 300 Battery energy storage system solution?

1. The actual energy consumption of tower cranes: Why is traditional power generation so wasteful?

First, we need to understand the power consumption characteristics of tower cranes. A large 50-ton tower crane that appears to operate continuously day and night actually has a much lower average power demand than one might intuitively assume.

"Roller-coaster" power consumption pattern: While tower cranes indeed require substantial instantaneous power (peak values) when lifting heavy loads, their energy consumption remains extremely low during most of the day—such as during empty-crank lowering operations or standby periods.

Key data: Industry research shows that a large tower crane with a rated power of up to 300 kW operates at an average power of only around 11 kW throughout the day, consuming approximately 110 kWh of energy per day.

Massive waste: To meet those few seconds of peak power demand, traditional solutions are forced to use high-power generators (e.g., 500 kVA). This "big horse pulling a small cart" generator operates at an extremely low load of below 2.5% most of the time, resulting in a dramatic drop in fuel efficiency to merely 5%-10%, with over 90% of the fuel wasted.

2. Cost Savings Estimation: Traditional Solution vs. Hybrid Solution

we estimate the cost savings based on the aforementioned data.

Basic assumptions: Tower crane: 50-ton class, average power consumption ~11 kW, daily energy consumption ~110 kWh.

Traditional solution: Power supply relies solely on a single high-power generator (e.g., 500 kVA).

Hybrid solution: 500 kW BESS + 300 kVA diesel generator. The BESS handles instantaneous peak loads and smooths out load variations, while the 300 kVA generator operates consistently at optimal efficiency, providing only BESS charging and basic power supplementation.

Diesel price: Currently estimated at 7.5 yuan per liter.

Working hours: Assuming 26 working days per month, 10 hours per day, totaling 3,120 hours annually.

Cost Comparison Estimation Table:

Item	Traditional solution (only large generator)	Hybrid solution (BESS + 300 kVA generator)	cost saving
configuration	500kVA generator	500kW BESS + 300kVA generator	-
Estimation Basis	Industry Report: The 500 kVA generator powers the large tower crane, with an average fuel consumption of 15 liters per hour.	Industry Case: After implementing energy storage system optimization, fuel consumption can be reduced to 3–7 liters per hour.	-
Annual fuel consumption	15 liters/hour × 3120 hours = 46,800 liters	Take the midpoint value: 5 liters/hour × 3120 hours = 15,600 liters	Fuel savings: 31,200 liters
Annual fuel cost	46,800 liters × 7.5 yuan/liter=351,000 yuan	15,600liters×7.5 yuan/liter=117,000 yuan	Annual savings: 234,000 yuan

Key conclusion: As shown in the table, the hybrid solution alone saves approximately ¥234,000 annually in fuel costs alone. Considering variations in equipment operating conditions, the total savings range reasonably between ¥200,000 and ¥300,000 per year.