Sterling PBES Energy Solution provides energy storage solutions to optimize or replace diesel in marine, grid and heavy industrial applications. SPBES batteries have been specifically designed for marine and industrial applications: applications where safety, reliability and cost are the most important aspects of a battery system. SPBES battery systems are used to power hybrid and fully electric ferries, offshore supply vessels, large hybrid yachts, industrial machinery and in land-based grid energy projects.
Electric ferries use batteries as the primary power for the ship, eliminating diesel fuel and emissions. Suitable for short haul ferries of any size, the batteries are charged at each end of their trip from shore power and can be used as a UPS for the port in case of shore side grid outages.
Batteries power the ship entirely on electric power for specific operations, such as in harbour cruising, reducing emissions, fuel and enginge run time. Often used for long haul ferries and some workboats. Batteries are charged with shore power and excess energy generated from engine.
Hybrid ships can vary greatly in type and energy storage size. Suited for peak shaving during dynamic positioning operations, the batteries absorb load variations so that engines only see the average system load. This improves fuel efficiency, reduces engine hours and low load operations. Batteries are recharged using excess engine energy.
Batteries provide full propulsion and house power for short run, fixed route ferries. Suitable operational profile for electrical operation are shorter ferry routes with high number of trips. While the passengers embark and disembark from the ferry, the batteries are quickly charged in port. The result is zero emissions operation, reduced noise pollution, elimination of fuel consumption and reduced maintenance costs. Crew and passengers will experience an increased level of comfort with far less noise and vibration on board.
Traditional diesel power and electric battery power combined. The energy storage system allows the engines to operate at optimal load and absorbs many of the load fluctuations. Batteries provide a ‘power bridge’, optimizing generators and reducing low load operation. This offers instant spinning reserve and clean, quiet low speed propulsion and horsepower. The result is decreased fuel consumption, air pollution, noise and maintenance costs.
A workboat, such as an offshore supply vessel or cable layer, uses a dynamic positioning system to hold position relative to the rig despite wind, waves and currents. The vessel will typically ramp up onboard generators to provide the instant power that is needed to offset these forces, using it as needed and dumping the excess energy. A hybrid handles these spikes in load with the high power output from lithium batteries. The vessel is able to respond to variations in load (wind and waves) as they happen, on battery power alone. Other uses include spinning reserve, backup power and to eliminate diesel engine idling.
Tugboats are designed to provide huge power on demand. Most of the time however, they are not engaged in their heaviest work. Instead, they spend large amounts of time in transit, holding position or at the dock. These low load conditions make large engines inefficient and increase the amount of pollution produced. This inefficiency is easily corrected by battery hybrid propulsion. The battery allows the vessel to transit through the harbour on battery power, operating in zero emissions mode. When high-speed transit or heavy bollard pull is required, the diesel engine/generator takes over. The batteries are topped up during the day from excess generator energy and may be fully charged at dock using shore power.
In a conventional RTG configuration, the diesel generator undergoes periods of inefficient sustained idling, resulting in unnecessary fuel usage and pollution emissions. By hybridizing the RTG with a small onboard lithium energy storage system and braking regeneration, each RTG operates with vastly increased efficiency resulting in reduced fuel consumption, emissions, and maintenance. The payback of converting to hybrid is further increased by the reduction in maintenance by use of a smaller sized generator that runs fewer hours.
Energy storage used in grid and renewable energy projects plays an important role to create a more flexible and reliable grid system. For example, when there is more supply than demand, the excess electricity generation can be stored, and when demand is greater than supply, the energy storage facilities discharge their stored energy. For islands and isolated communities, utility infrastructure is almost entirely reliant on imported fossil fuels. Designed to replace traditional diesel power plants, PBES energy storage solutions such as CanPower create low/zero emission power plants. Integrated with renewable energy such as solar and wind, and with the emergency back-up of generators, energy storage enables a safe and dependable low emission energy solution.
All SPBES systems use the same form factor and are backed by industry leading safety, performance, and recycling systems. CellCoolTM, ThermalStopTM and CellSwapTM provide ideal operating conditions, thermal runaway prevention and best industry value.
