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rental power

Liquid molten salt for Emerson and SolarReserve energy storage project

Tue, 01/22/2013 - 17:36 -- Ruth Williams

Emerson Network Power and SolarReserve are collaborating to produce and store solar energy in liquid molten salt at the Crescent Dunes Solar Energy Project in Nevada. It will be the first project of its kind to harness energy from the sun and store it in this way. The 110-MW project is due to be online by the end of 2013.

Nevada solar park

SolarReserve’s system of 10,500 mirrors focus the sun’s energy to heat molten salt that flows through a central receiver, which sits atop a 540-foot solar power tower. The molten salt then flows up the tower where it circulates through the receiver and is heated by the sun’s energy. It then flows to another storage tank where steam is produced, using thermal energy, which powers a turbine to generate electricity. Excess thermal energy will be stored in the molten salt.

Emerson’s Ovation technology will directly control the circuit and heating process of the molten salt system, the water/steam cycle and auxiliary processes. The control system will also provide supervisory control of the mirrors and interface with the turbine control system. ?

Enough energy is expected to be generated to power 75,000 homes regardless of whether or not the sun is shining.

Cummins to target Europe rental market with launch of new gensets

Tue, 01/22/2013 - 17:36 -- Ruth Williams

Cummins is targeting the European rental market with the launch of four generator sets in the 150 to 300 kVA range.

Cummins

According to International Rental News, the rental-specific sets, which have been created by a new Cummins design team led by former A-Plant power rentals director Richard Mellard, are sized at 150, 200, 250 and 300 kVA, with the smaller two using Cummins QSB7 engine and the two larger models equipped with the QSL9 power unit

The sets will be made available in markets including Europe, the Middle East, Asia Pacific and Australia. The reports said Cummins would further expand their rental range, with launches of sub-150 kVA units by the end of 2013 or the start of 2014, and larger units following in 2014/15.

The gensets come equipped with Cummins’ PowerCommand controllers, although Cummins plans to offer third-party controllers for rental companies who want commonality across their fleets. The 150 kVA unit can be used in temperatures up to 500C without any derating and the 200/250/300 sets up to 400C with no derating.

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