Featured GEA members: AltaRock Energy and Ormat Technologies

GEA member AltaRock Energy discusses next steps for its Newberry demo in Oregon while Ormat Technologies announces the refurbished Mammoth plant is online in California.

AltaRock Energy: Newberry Restimulation and Production Planning Set for Summer 2014
Ormat Technologies: Newly Refurbished Mammoth G1 Power Plant Reaches Commercial Operation

AltaRock Energy: Newberry Restimulation and Production Planning Set for Summer 2014
AltaRock Energy has provided an update on its blog detailing its Newberry EGS Demonstration site in Oregon and its plans for 2014. AltaRock will focus on off-field work during the winter months, and states:

Next summer, we’ll rig up the injection pumps used during stimulation last year and re-stimulate to increase the size of the deep reservoir. During re-stimulation, we’ll continually monitor microseismic activity just like we did in 2012, keeping within our permitted boundaries for pressure, volume, microseismic activity and fracture propagation boundaries. Once the EGS reservoir encompasses an economically viable volume of hot rock, we’ll plan for and drill a production well into the reservoir and complete for flow and circulation tests between the two wells.

AltaRock plans to complete the restimulation and planning by the end of fall 2014.

Ormat Technologies: Newly Refurbished Mammoth G1 Power Plant Reaches Commercial Operation
Ormat Press Release (RENO, Nev.) January 23 ~ Ormat Energy Converters replace the original non-Ormat generating units, increasing efficiency and availability ~ Ormat Technologies, Inc. (NYSE: ORA) announced today that it successfully completed the scope of work needed to bring the Mammoth G1 geothermal power plant in Mono County, California to full capacity. The 6 MW plant reached commercial operation under the new power purchase agreement (PPA) with Pacific Gas and Electric Company (PG&E) that allows for hourly energy deliveries of up to 7.5 MW and now receives the full commercial rate defined in the PPA.

The Mammoth G1 plant commenced operation in 1984 under a Standard Offer Contract No. 4 PPA with Southern California Edison Company (SCE). In March 2013, Ormat announced the termination of its PPA with SCE and the signing of a new 20-year PPA – not tied to natural gas – with PG&E for the full output of the facility. Refurbishing of the power plant took place in 2013 and was completed less than eight months from the start of mechanical construction with the plant reaching full power in less than a month from the end of construction.

“Constructing the Mammoth G1 geothermal power plant and reaching commercial operation under the new PPA with PG&E is another example of Ormat’s ability to add value to existing operating assets,” said Yoram Bronicki, president and chief operating officer at Ormat. “By replacing the original equipment with Ormat Energy Converters, we already see an increase in the power plant’s efficiency and expect increased availability, lower operation and maintenance costs, and improved EBITDA.”

This refurbishing project is the latest in a series of successful projects where third-party generating equipment was replaced with Ormat Energy Converters. Other recent examples include the 2013 repowering of Cyrq Energy’s Thermo 1 power plant in Utah and Ormat’s Steamboat 2 and Steamboat 3 power plants in Nevada in 2008.

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