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Wednesday, March 13, 2019

Iceland: Climeon Geothermal "Heatpower" Plant in Fludir Two Months from Launch

First geothermal site approved by customer (News Release)

Swedish company Climeon has received its first geothermal site approval from Varmaorka. Kopsvatn 1, outside Fludir, it is the first geothermal power plant that uses Climeon�s Heat Power system. Varmaorka has now approved the site through a Site Acceptance Test (SAT).

The Site Acceptance Test also marks the start of a two-month testing period before complete site hand-over. For two months Climeon and Varmaorka will evaluate the continuous operation of the power plant. After this period, Climeon will do a final site hand-over to Varmaorka, meaning that the power plant will have taken about twelve months from groundbreaking to hand-over.

Science & Technology: Assessing Geopressured-Geothermal Resources in Sedimentary Basin Plays

A Methodology for Assessing the Favourability of Geopressured-Geothermal Systems in Sedimentary Basin Plays: A Case Study in Abruzzo (Italy) (Hindawi)

by Alessandro Santilano, et al

We exploit the concept of the geothermal favourability, widely used for hydrothermal and EGS systems, to present an innovative methodology for assessing geopressured-geothermal resources occurring in terrigenous units in sedimentary basin plays.

Flow diagram of the hybrid power system for the
trigeneration from geopressured-geothermal resources

Geopressured-geothermal systems are an unconventional resource for power trigeneration exploiting three forms of energy from hydrocarbons, hydrothermal fluids, and well-head overpressure.

This paper is intended to be a practical analytical framework for the systematic integration of the relevant data required to assess geopressured-geothermal resources. For this purpose, innovative parameters were also implemented in the methodology. The final result is the favourability map for identifying prospective areas to be further investigated for the appraisal of the geopressured-geothermal potential.

We applied our methodology to the foredeep-foreland domains of the Apennines thrust belt in the Abruzzo region (central Italy). We analysed hundreds of deep hydrocarbon wells in order to create 3D geological and thermo-fluid dynamic models at a regional scale as well as to obtain information on the pressure regimes and on the chemistry of the system.

The final favourability map for the Abruzzo case study is a first attempt at ranking these kinds of unconventional geothermal resources in a region that has been historically explored and exploited mostly for hydrocarbons.

Read More........

Geofluids, Volume 2019, Article ID 4503943, 28 pages
https://doi.org/10.1155/2019/4503943

Science & Technology: Analyzing Drill Cores in Geothermal Systems

Mapping Alteration In Geothermal Drill Core Using a Field Portable Spectroradiometer (Malvern Panalytical)

This paper, by long time ASD customer Wendy Calvin, describes how an ASD FieldSpec�spectroradiometer has been used to analyze drill cores in geothermal systems. These types of drill holes are typically used in early-stage geothermal exploration and help to locate geothermal resources for energy generation (see the paper�s introduction section for a good summary of the application). While in this case a FieldSpec was used, this would be a better fit for an ASD TerraSpec� 4 plus TSG� software or an ASD TerraSpec Halo. Here is the abstract:

Hydrothermal alteration mineralogy in geothermal systems is commonly used to infer system temperature and past fluid flow patterns. (Near) Infrared spectroscopy is particularly good at identifying a wide variety of hydrothermal alteration minerals. The technique requires little sample preparation, and is especially helpful in discrimination among a wide range of phyllosilicate minerals that may be difficult to distinguish in hand sample or require lengthy preparation for XRD analysis. We have performed several pilot studies of geothermal drill core and chips to prototype rapid alteration characterization over large depths. These preliminary studies have established reliable methods for core/chip surveys that can quickly measure samples with high depth resolution and show the efficiency of the technique to sample frequently and provide alteration logs similar to geophysical logs. We have successfully identified a wide variety of phyllosilicates, zeolites, opal, calcite, iron oxides, and hydroxides, and note depth-associated changes in alteration minerals, patterns, or zones. Alteration mineralogy identified using these techniques shows good correlation with traditional petrographic microscope and XRD method.

Read the full paper here: Mapping alteration in geothermal drill core using a field portable spectroradiometer

Kenya: 165.4 MW Olkaria V Geothermal Power Plant to be Commissioned in June

KenGen will commission Olkaria V geothermal power plant in June 2019 (AFRIK 21)

Kenya will soon have a new geothermal power plant. It is Olkaria V, located in the Rift Valley in the west of the country. Kenya Electricity Generating Company (KenGen), Kenya�s largest energy producer and owner of the project, has announced that the plant will be commissioned by June 2019.

The facility, which produces electricity from steam, will provide 165 MW. Energy that will then be sold to Kenya Power (KPLC), the company that provides the electricity utility. Construction of the geothermal power plant began in January 2017. The project has received support from Japan.

Read More.........

Tuesday, March 12, 2019

Canada: Conference on Development of Geothermal Resources in Sedimentary Basins

Geothermal Resources in Sedimentary Basins Conference

14-18 October, 2019, Edmonton, Alberta, Canada

The University of Alberta Geothermal Research Group has announced that it will be hosting a conference in Oct. 2019 which includes a field excursion in the Rocky Mountains, the conference, and short courses. The keynote speaker is University of Reno Nevada professor Dr. Jim Faulds.

This conference is a �multidisciplinary meeting dedicated to sharing knowledge and insight into the development of geothermal resources in sedimentary basins worldwide.

Topics to include: science, geology, engineering, policy, regulation, and social license issues. We solicit participation from academics, government, and industry in all countries, in the form of oral and poster presentations, panel discussions, and field trips.�

More Information.........

Belgium: Geothermal Energy Could be Big in Belgium!

La g�othermie: une �nergie souterraine dont commence � profiter la Belgique
- Geothermal energy: an underground energy that starts to benefit Belgium (RTBF)

(Video 6:52 Minutes)

La Belgique reste aujourd�hui tr�s d�pendante de l��tranger pour son approvisionnement �nerg�tique. Une des solutions r�siderait peut-�tre dans le d�veloppement de la G�othermie : le captage de l��nergie, de la chaleur qui r�side naturellement sous terre. Une �nergie propre et renouvelable donc mais qui est encore sous-exploit�e dans notre pays. Etat des lieux d'une source d'�nergie m�connue.

(From Google Translate) Belgium remains today very dependent on foreigners for its energy supply. One of the solutions may lie in the development of geothermal energy: the capture of energy, heat that resides naturally underground. Clean and renewable energy, but still underused in our country. This is the state of play of an unknown source of energy.

Lire la suite......... Read More.........

Finance: A Well-Structured Portfolio of Projects and Technologies Can Offer a Firmer Renewable Generation Profile - Report

How multi-technology PPAs could help companies reduce risk (World Business Council for Sustainable Development)

The goal of this paper is to support continuing innovation in the way companies purchase renewable power for their operations.

A multi-technology power purchase agreement (PPA) covers multiple projects of different technologies (such as wind, solar, biomass, geothermal or hydro). The research within the paper investigates if and how multi-technology PPAs could offer benefits to developers and/or corporate buyers by reducing some of the risks commonly seen in PPAs.

The research finds that a well-structured portfolio of projects and technologies can offer a firmer renewable generation profile compared to a single technology. As companies are evaluating different PPA options suitable for their needs, they should assess if the achievable risk reduction is enough to alter existing approaches for managing these risks and if it underpins discussions on reduced fees for the risk management.

Download the report..........