Recently updated on September 19th, 2024 at 02:11 pm<\/p>","protected":false},"excerpt":{"rendered":"
The report describes the results of an investigation relating to the presence of microbial pools in different types of national soil in potential sites for geological hydrogen storage. It also describes the procedure developed for sampling microorganisms within superficial and deep porous rocks. The results of the activity confirm the microbial presence in all conditions and confirm the need for a more in-depth and systematic screening of the geochemical and microbiological characteristics of potential sites.<\/p>\n","protected":false},"author":93,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[1360,1307,1299],"targets":[1317],"rapporti_tipologie":[762],"class_list":["post-191917","rapporti","type-rapporti","status-publish","hentry","tag-hydrogen","tag-renewable-energy-en","tag-storage-en","targets-research","rapporti_tipologie-report-en"],"acf":{"projects":{"ID":191041,"post_author":"464","post_date":"2024-07-10 15:54:35","post_date_gmt":"2024-07-10 13:54:35","post_content":"","post_title":"Storage systems, including electrochemical and power-to-gas, and their interfaces with grids","post_excerpt":"The more ambitious the decarbonisation goals become, the more important energy storage is. The increasing penetration of non-programmable renewable energy sources (NPRESs) and the growing electrification of transport lead to a number of challenges related to the stability and flexibility of the national electrical system. The need to store excess renewable energy for later use where and when it is needed becomes evident.","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"storage-systems-including-electrochemical-and-power-to-gas-and-their-interfaces-with-grids","to_ping":"","pinged":"","post_modified":"2024-08-09 15:49:26","post_modified_gmt":"2024-08-09 13:49:26","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.rse-web.it\/progetti\/storage-systems-including-electrochemical-and-power-to-gas-and-their-interfaces-with-grids\/","menu_order":0,"post_type":"progetti","post_mime_type":"","comment_count":"0","filter":"raw"},"order_posts":"","dont_show_search":false,"related_posts":false,"dont_show_hompage":false,"show_on_slider":false,"single_post_data":{"titolo_spot":"","post_content":"
Excess energy from non-programmable renewable sources can be stored by using hydrogen produced by electrolysis as an energy carrier, to be fed into existing natural gas infrastructure. This strategy attracts great interest at a national and international level, in the prospect of a progressive replacement of fossil natural gas with so-called renewable gases. However, the storage of large quantities of hydrogen still poses some challenges that have to be carefully assessed with a view to strongly develop the technologies for the production from non-programmable renewable sources. Hydrogen storage in underground tanks is a desirable option in the medium-long term, which will require identifying and selecting the most suitable sites from a technical, safety and product stability point of view. The analysis of the microbiological processes that can have an impact on the underground storage natural gas and hydrogen mixtures suggests investigating the presence of microorganisms within rocks of different types and origins, in order to assess the risks of contamination and degradation of the stored gas. This document describes the criticality due to the presence of microorganisms in underground gas storage tanks and reports the results of the investigation on the presence of microbial pools in different types of national soil which could be of interest as potential sites to host hydrogen storage tanks. It also describes the procedure developed for sampling microorganisms within superficial and deep porous rocks. The results confirm the widespread and significant presence of different types of sulphate-reducing, hydrogenotrophic bacteria and methanogenic archaea in all the samples analyzed. The metagenomic analysis of the results shows that the genera of the microorganisms found differ depending on the chemical-physical characteristics of the rocks. Each of the aforementioned types of microorganisms is responsible for a different transformation of hydrogen into another molecule (methane, acid, etc.) with resulting critical issues in terms of loss of energy and corrosion problems.
\nThe activity conducted therefore suggests the need for a more in-depth and systematic screening of the geochemical and microbiological characteristics of potential hydrogen storage sites on the Italian territory, in order to assess the potential risk of loss and transformation of the stored gas; it is also advisable to model the kinetics of the possible bio-chemical reactions in these environments according to the various groups of microorganisms identified.<\/p>\n","link_estreno":false,"scarica_file":[{"download_option":"download","file_name":"Download Report","download":{"ID":172029,"id":172029,"title":"20011288","filename":"20011288.pdf","filesize":1816890,"url":"https:\/\/www.rse-web.it\/wp-content\/uploads\/2021\/12\/20011288.pdf","link":"https:\/\/www.rse-web.it\/en\/rapporti\/risultati-di-unindagine-relativa-alla-presenza-di-pool-microbici-in-differenti-tipologie-di-suolo-nazionale-potenzialmente-interessate-da-siti-di-stoccaggio-geologico-di-idrogeno\/20011288-2\/","alt":"","author":"93","description":"","caption":"","name":"20011288-2","status":"inherit","uploaded_to":171991,"date":"2022-10-03 15:14:55","modified":"2022-10-03 15:14:55","menu_order":0,"mime_type":"application\/pdf","type":"application","subtype":"pdf","icon":"https:\/\/www.rse-web.it\/wp-includes\/images\/media\/document.png"}}],"button":{"text":"","link":""},"referente_group":false,"data_emissione":"2021-12-31","autori":"Pierangela Cristiani, Andrea Franzetti (Universit\u00e0 degli Studi di Milano Bicocca), Andrea Bistacchi (Universit\u00e0 degli Studi di Milano Bicocca), Francesca Formicola (Universit\u00e0 degli Studi di Milano Bicocca)","rapporto":"","rif_rse":"20011288"},"satellite_post_url":""},"yoast_head":"\n