BERGEN Group of Companies-India 311, Time Tower, Sector 28, Gurgaon E-mail: info@bergengroupindia.com Website: www.bergengroupindia.com
In 1980 while sitting in the town of Bergen in Norway, an Indian NORAD fellow was inspired by sunrise & sunset almost from same location and came back with the idea of setting up an organization which will bring new technologies in Indian electronics manufacturing & renewable energy sector & which will help to end the shortage of power in India & improve the lifestyle of the Indian people.
MANAGEMENT Rajinder Kumar Kaura CMD Dhruv Kaura Director Dronveer Kaura Director Rakesh Chaudhary Vice President Samir Mehta Vice President Kumud Tyagi Vice President
Bergen Associates Pvt. Ltd. Bergen Electronics Ltd. Bergen LED & Solar Products Ltd. Equipment Supplier Equipment Supplier Manufacturing Bergen Solar Power & Energy Ltd. Bergen Healthcare Pvt. Ltd. BIRDS Solar Thermal & Farm EPC Healthcare Equip. Supplier Educational Institute
SCOPE OF SUPPLY
PAN INDIA Presence
BERGEN GROUP VISION Make in India
Electrical Energy Storage A Look at Renewable Energy
What is ESS?
WHY WE NEED ESS?
DIFFERENT ENERGY STORAGE TECHNOLOGIES Pumped storage Superconducting magnet energy storage Flywheel energy storage Regenerative fuel cell storage Compressed air energy storage
Pumped Hydroelectric Storage Conventional pumped hydro storage systems use two water reservoirs at different elevations to pump water during off-peak hours from the lower to the upper reservoir (charging). When required, the water flows back from the upper to the lower reservoir, powering a turbine with a generator to produce electricity (discharging). There are different options for the upper and lower reservoirs.
Compressed air energy storage (CAES) CAES uses energy during low demand periods to compress air. Then it injects the air into a depleted natural gas reservoir. Next, the compressed air is used to power a generator during times when energy demand is highest. Two CAES plants are currently operating. One plant is located in Alabama and the other plant is in Germany. Both have operated safely and reliably for more than 50 years, combined. The plants use an underground cavern created in a salt formation. However, this type of salt formation is not commonly found in our territory. The only two existing CAES plants in Huntorf, Germany, and in McIntosh, Alabama, USA
Flywheel energy storage (FES) In flywheel energy storage rotational energy is stored in an accelerated rotor, a massive rotating cylinder. The energy is maintained in the flywheel by keeping the rotating body at a constant speed. An increase in the speed results in a higher amount of energy stored. To accelerate the flywheel electricity is supplied by a transmission device. If the flywheel s rotational speed is reduced electricity may be extracted from the system by the same transmission device. Flywheels used mainly in milling and pottery can be found in many locations in Africa, Asia, and Europe
Superconducting Magnetic Energy Storage When the superconductor coil is cooled below its superconducting critical temperature it has negligible resistance, hence current will continue to flow (even after a voltage source is disconnected). The energy is stored in the form of a magnetic field generated by the current in the superconducting coil. It can be released by discharging the coil. The coils are usually made of niobiumtitane (NbTi) filaments which has a critical temperature of around 9K.
Thermal Energy Storage Solution circulates inside the heat exchanger within the IceBank tank, freezing 95% of the water that surrounds the heat exchanger inside the tank.. Ice is created uniformly inside the IceBank tank via CALMAC s, counter-flow-heat exchanger tubes. As ice forms, water still moves freely, which prevents damage to the tank. To fully charge an IceBank tank takes from six to 12 hours.
Thermal Energy Storage During the day-time on peak hours, the glycol solution circulates through the ice storage tanks to deliver the stored energy to the building to augment or offset electric chiller cooling. The cold glycol is delivered at the proper temperature to the cooling coil in an air handler. A fan blows air over the coils to deliver cooling to the occupant spaces. People feel cool and comfortable and never know ice storage is being used to save money on cooling costs.
A flow battery is a type of rechargeable battery where recharge ability is provided by two chemical components dissolved in liquids contained within the system and most commonly separated by a membrane. This technology is akin to both a fuel cell and a battery - where liquid energy sources are tapped to create electricity and are able to be recharged within the same system. Flow Batteries
FUEL CELL A fuel cell produces electricity through a chemical reaction, but without combustion. It converts hydrogen and oxygen into water, and in the process also creates electricity. It s an electro-chemical energy conversion device that produces electricity, water, and heat. Fuel cells operates much like a battery, except they don t require electrical recharging. A battery stores all of its chemicals inside and coverts the chemicals into electricity. Once those chemicals run out, the battery dies. A fuel cell, on the other had, receives the chemicals it uses from the outside; therefore, it won t run out. Fuel cells can generate power almost indefinitely, as long as they have fuel to use.
Energy Storage in Super capacitors A supercapacitor is a doublelayer capacitor that has very high capacitance but low voltage limits. Supercapacitors store more energy than electrolytic capacitors and they are rated in farads (F). Supercapacitors store electrical energy at an electrode electrolyte interface. They consist of two metal plates, which only are coated with a porous material known as activated carbon. As a result, they have a bigger area for storing much more charge.
Comparison between Supercapacitors and batteries