{"id":57008,"date":"2025-12-19T16:18:48","date_gmt":"2025-12-19T16:18:48","guid":{"rendered":"https:\/\/cardiffstudentmedia.co.uk\/gairrhydd\/?p=57008"},"modified":"2026-02-15T17:54:45","modified_gmt":"2026-02-15T17:54:45","slug":"ar-dan-gall-ateb-i-anghenion-cynhesucartrefi-caerdydd-fod-o-dan-ein-traed","status":"publish","type":"post","link":"https:\/\/cardiffstudentmedia.co.uk\/gairrhydd\/taf-od\/ar-dan-gall-ateb-i-anghenion-cynhesucartrefi-caerdydd-fod-o-dan-ein-traed\/","title":{"rendered":"Ar D\u00e2n: Gall Ateb i Anghenion Cynhesu Cartrefi Caerdydd fod o dan ein Traed?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"57008\" class=\"elementor elementor-57008\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"has_eae_slider elementor-section elementor-top-section elementor-element elementor-element-728398e8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-eae-slider=\"19050\" data-id=\"728398e8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"has_eae_slider elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-32419895\" data-eae-slider=\"73092\" data-id=\"32419895\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2a024171 elementor-widget elementor-widget-text-editor\" data-id=\"2a024171\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\n<p><strong>Gan Ifan Meredith<\/strong><\/p>\n\n<p>Mae data newydd yn dangos gall tymereddau d\u0175r daear islaw dinas Caerdydd gyrraedd hyd at 20\u00b0C. Credir mai gweithred uwchlaw\u2019r ddaear sydd yn gyfrifol am y \u201cllygredd tymheredd\u201d yma. Er mwyn canfod y data yma, driliwyd 61 o dyllau ar draws dinas Caerdydd fu\u2019n casglu data am dymereddau\u2019r ddaear o dan y ddinas ers 2018. O\u2019r bae i ganol y ddinas, a thu hwnt, roedd y dyfeisiau yma yn trosglwyddo data i sefydliad y \u2018UK Geoenergy Observatories\u2019 bob hanner awr dros y chwe blynedd diwethaf.<\/p>\n\n<p>Ond mae yna gyfanswm o 234 o dyllau i gyd ar draws y ddinas sydd yn casglu data ar gyfer sefydliadau gwahanol fel y \u2018British Geological Survey\u2019 sydd i gyd yn dangos yr un tueddiadau sef bod yr hyn sydd gyda Chaerdydd o dan y ddaear wirioneddol yn mynd i allu cynhesu cartrefi gan leihau\u2019r angen am nwy.<\/p>\n\n<p>Pe bai cynlluniau ar gyfer gwresogi geothermal yn cael eu cyflwyno, byddai\u2019n newid y byd i 124,000 o gartrefi Caerdydd. Mae\u2019n bosib fydd y cartrefi yma yn gallu cael eu gwresogi a\u2019u pweru gan dymheredd y ddaear.<\/p>\n\n<p><strong>Ond sut, medde chi?<\/strong><\/p>\n\n<p>Wrth dyllu o dan y ddinas, bydd peiriannau \u2018Ffynhonnell Tir\u2019 (Ground Source) yn gallu cael eu defnyddio wrth i dd\u0175r oer deithio o\u2019r pwmp i\u2019r ddaear lle fydd yn cael ei gynhesu\u2019n naturiol. Wrth ddychwelyd i\u2019r pwmp, bydd y d\u0175r yn cael ei gynhesu drwy broses anweddu a chywasgu sydd yn cynyddu\u2019r tymheredd yn uwch.<\/p>\n\n<p>Mae gan y d\u0175r cynnes yma y gallu wedyn i wresogi\u2019r cartref ac yn fwy na dim, y gallu i roi cyflenwad dibynadwy o dd\u0175r cynnes i\u2019r cartref.<\/p>\n\n<p>Tra\u2019n arloesol i Gymru, nid yw defnyddio \u2018geothermal\u2019 yn anghyffredin. Yng Ngwlad Yr I\u00e2, mae egni \u2018geothermal\u2019 yn cael ei ddefnyddio yn aml \u2014 dyma beth sydd yn gwresogi 90% o gartrefi\u2019r wlad. Yno, mae\u2019n manteisio ar actifrwydd folcanig yr ynys sydd yn cynhyrchu gwres daear naturiol.<\/p>\n\n<p>Clywn yn aml am bryderon amgylcheddol a\u2019r angen i ddod o hyd i ddulliau amgen i wresogi a chael ynni. Ai dyma dyfodol twymo ein tai felly?<\/p>\n<p>Llun: <span class=\"wikibase-labelview-text\">B\u00e4rbel Miemietz via Wikimedia Commons.<\/span><\/p>\n\n<p>\u00a0<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Mae data newydd yn dangos gall tymereddau d\u0175r daear islaw dinas Caerdydd gyrraedd hyd at 20\u00b0C. Credir mai gweithred uwchlaw\u2019r ddaear sydd yn gyfrifol am y \u201cllygredd tymheredd\u201d yma. Er mwyn canfod y data yma, driliwyd 61 o dyllau ar draws dinas Caerdydd fu\u2019n casglu data am dymereddau\u2019r ddaear o dan y ddinas ers 2018. O\u2019r bae i ganol y ddinas, a thu hwnt, roedd y dyfeisiau yma yn trosglwyddo data i sefydliad y \u2018UK Geoenergy Observatories\u2019 bob hanner awr dros y chwe blynedd diwethaf. <a href=\"https:\/\/cardiffstudentmedia.co.uk\/gairrhydd\/taf-od\/ar-dan-gall-ateb-i-anghenion-cynhesucartrefi-caerdydd-fod-o-dan-ein-traed\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Ar D\u00e2n: Gall Ateb i Anghenion Cynhesu Cartrefi Caerdydd fod o dan ein Traed?<\/span><\/a><\/p>\n","protected":false},"author":524,"featured_media":57656,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","footnotes":"","_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"","_twitter_share_type":"","_linkedin_share_type":"","_pinterest_share_type":"","_linkedin_share_type_page":"","_instagram_share_type":"","_medium_share_type":"","_threads_share_type":"","_google_business_share_type":"","_selected_social_profile":[],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":false,"datetime":null,"platforms":[],"status":"template_only","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[8858],"tags":[8997,3445,440,8995,4737,5833,8996,8998],"class_list":["post-57008","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-taf-od","tag-amgylchedd","tag-caerdydd","tag-cymru","tag-egni-geothermal","tag-gwyddoniaeth","tag-newid-hinsawdd","tag-ynni-adnewyddadwy","tag-ynni-cynaliadwy"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ar D\u00e2n: Gall Ateb i Anghenion Cynhesu Cartrefi Caerdydd fod o dan ein Traed? - Gair Rhydd<\/title>\n<meta name=\"description\" content=\"Mae data newydd yn dangos gall tymereddau d\u0175r daear islaw dinas Caerdydd gyrraedd hyd at 20\u00b0C. 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Credir mai gweithred uwchlaw\u2019r ddaear sydd yn gyfrifol am y \u201cllygredd tymheredd\u201d yma. Er mwyn canfod y data yma, driliwyd 61 o dyllau ar draws dinas Caerdydd fu\u2019n casglu data am dymereddau\u2019r ddaear o dan y ddinas ers 2018. 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