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Commercial Energy Storage System

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Solar power is now accepted as part of the electricity production cycle as much as coal or nuclear power but is a much cleaner source. At the same time, the usage of electricity is growing every year and with the arrival of electric cars usage will be even bigger. Yet in most countries there is an imbalance on the country grids. Too much power at some times, not enough at others.

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To help grids overcome the usage spikes which occur every day, battery storage is the answer.

Battery technology has made great strides and made storage a viable proposition, both for national grids and companies and both parties are embracing this exciting new sector.

Dowell provides 1st class EPC services for Battery Energy Storage Systems.

Dowell has 10 years’ experience in this field providing systems to store, to monitor and to distribute power. They are one of the leading storage EPC companies with great success in China. Now they can bring this wealth of experience to your project.


  • On-Grid and Stand-Alone Running Mode: This is the essential difference between smart microgrid and charged distributed generation system. Smart microgird run under on-grid mode has peak load shifting effects on large power grid. When power grid fault occurs, smart microgrid can split large power rapidly, island running. Provide continuous power for important load such as government, hospitals, traffic hub and improve reliability of power supply.
  • Stability: When microgrid run individually, can balance power and make voltage and frequency steady under steady state and transient state, effectively solve problems of voltage and harmonic wave. Avoid immediate influence on electric energy for around users by intermittent power.
  • Compatibility: Microgird is the most effective method to realize distributed generation grid-connected, which integrates original scattered distribution renewable resources. Through energy storage devices and control protective devices can realize smooth power fluctuation, ensure supply and demand balance and system steady. It can overcome disadvantages of distributed generation, randomness and intermittent, solve distributed generation access problems.
  • Flexibility: Microgrid can be regarded as a controlled unit of large power grid, realize distributed generation “plug and play”. According with users’ requirements can provide electric energy with different prices and various classes to meet users’ multifarious requires