{"id":102,"date":"2024-04-29T13:16:27","date_gmt":"2024-04-29T13:16:27","guid":{"rendered":"https:\/\/cretagrp.com\/?page_id=102"},"modified":"2026-09-19T14:34:06","modified_gmt":"2026-09-19T14:34:06","slug":"geothermal","status":"publish","type":"page","link":"https:\/\/cretagrp.com\/?page_id=102","title":{"rendered":"Geothermal energy"},"content":{"rendered":"<p><!doctype html><br \/>\n<html lang=\"en\"><head><meta charset=\"UTF-8\"><meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><title>Geothermal Engineering &amp; Advisory | CRETA Group<\/title><meta name=\"description\" content=\"Geothermal heating and cooling for buildings, agriculture and data centres; exploration, reservoir assessment, power-plant design and oil and gas well repurposing.\"><\/p>\n<style>body{margin:0}<\/style>\n<p><\/head><body><\/p>\n<style>\n#creta-geo{--g:#143f35;--d:#092820;--a:#d6edac;--t:#193a32;--m:#52695f;--l:#d8e3da;--p:#f2f6f2;background:#fff;color:var(--t);font:16px\/1.7 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16px;justify-content:flex-end}}\n@media(max-width:560px){#creta-geo .cg-top{flex-direction:column;gap:14px}#creta-geo .cg-nav{justify-content:flex-start}#creta-geo .cg-panel{grid-template-columns:1fr;gap:25px;padding:25px}#creta-geo .cg-lab{padding:25px}#creta-geo .cg-lab-top{align-items:flex-start;flex-direction:column}#creta-geo .cg-tabs button{flex-grow:1}#creta-geo .cg-road{grid-template-columns:repeat(2,1fr)}#creta-geo .cg-metrics{gap:12px}#creta-geo .cg-metric b{font-size:25px}#creta-geo .cg-gates{grid-template-columns:1fr}#creta-geo .cg-output{border-left:0;border-top:2px solid #acc6b4;padding:20px 0 0}#creta-geo .cg-actions{align-items:stretch;flex-direction:column}}\n@container(max-width:700px){#creta-geo .cg-hero-grid,#creta-geo .cg-head,#creta-geo .cg-well,#creta-geo .cg-contact-grid,#creta-geo .cg-panel,#creta-geo .cg-lab-grid{grid-template-columns:1fr;gap:30px}#creta-geo h1{font-size:46px}#creta-geo .cg-road{grid-template-columns:repeat(2,1fr)}#creta-geo .cg-lab-top{align-items:flex-start;flex-direction:column}#creta-geo .cg-gates{grid-template-columns:repeat(2,1fr)}}\n@media(prefers-reduced-motion:reduce){#creta-geo *{transition:none!important;scroll-behavior:auto!important}}\n<\/style>\n<section id=\"creta-geo\" lang=\"en\" aria-label=\"CRETA geothermal services\">\n<div class=\"cg-w cg-top\"><a class=\"cg-brand\" href=\"https:\/\/cretagrp.com\/\">CRETA GROUP<\/a><\/p>\n<nav class=\"cg-nav\" aria-label=\"Geothermal services\"><a href=\"#cg-climate\">Heating &amp; cooling<\/a><a href=\"#cg-resource\">Resource &amp; power<\/a><a href=\"#cg-wells\">Well repurposing<\/a><a href=\"#cg-contact\">Discuss a project \u2197<\/a><\/nav>\n<\/div>\n<header class=\"cg-hero\">\n<div class=\"cg-w\">\n<div class=\"cg-hero-grid\">\n<div><span class=\"cg-k\">Geothermal \/ Geoscience \/ Engineering<\/span><\/p>\n<h1>Energy beneath us.<br \/><em>Possibilities<br \/>ahead.<\/em><\/h1>\n<p class=\"cg-lead\">From climate control to power generation, CRETA connects subsurface understanding with the engineering needed to turn geothermal opportunities into viable projects.<\/p>\n<div class=\"cg-actions\"><a class=\"cg-btn\" href=\"#cg-contact\">Define your project <span aria-hidden=\"true\">\u2197<\/span><\/a><a class=\"cg-link\" href=\"#cg-climate\">Explore our expertise<\/a><\/div>\n<\/div>\n<div class=\"cg-paths\"><a class=\"cg-path\" href=\"#cg-climate\"><span>01<\/span><span><b>Heating &amp; cooling<\/b><small>Buildings, facilities, agriculture and data centres.<\/small><\/span><span aria-hidden=\"true\">\u2197<\/span><\/a><a class=\"cg-path\" href=\"#cg-resource\"><span>02<\/span><span><b>Resources &amp; power generation<\/b><small>Exploration, reservoir evaluation, risk and plant design.<\/small><\/span><span aria-hidden=\"true\">\u2197<\/span><\/a><a class=\"cg-path\" href=\"#cg-wells\"><span>03<\/span><span><b>A new purpose for existing wells<\/b><small>Geothermal assessment of depleted oil and gas assets.<\/small><\/span><span aria-hidden=\"true\">\u2197<\/span><\/a><\/div>\n<\/div>\n<div class=\"cg-strip\"><span>Site-led assessment<\/span><span>Integrated system design<\/span><span>Measured performance<\/span><\/div>\n<\/div>\n<\/header>\n<section class=\"cg-w cg-section\" id=\"cg-climate\" aria-labelledby=\"cg-climate-title\">\n<div class=\"cg-head\">\n<div><span class=\"cg-k\">01 \/ Heating &amp; cooling<\/span><\/p>\n<h2 id=\"cg-climate-title\">Design around the load.<br \/>Engineer with the ground.<\/h2>\n<\/div>\n<p>Ground-coupled systems exchange heat with the subsurface. We assess the demand, ground conditions and operating temperatures together to select a suitable system architecture.<\/p>\n<\/div>\n<div class=\"cg-tabs\" role=\"tablist\" aria-label=\"Heating and cooling applications\"><button type=\"button\" role=\"tab\" id=\"cg-t-home\" aria-controls=\"cg-p-home\" aria-selected=\"true\">Residential buildings<\/button><button type=\"button\" role=\"tab\" id=\"cg-t-facility\" aria-controls=\"cg-p-facility\" aria-selected=\"false\" tabindex=\"-1\">Facilities &amp; campuses<\/button><button type=\"button\" role=\"tab\" id=\"cg-t-farm\" aria-controls=\"cg-p-farm\" aria-selected=\"false\" tabindex=\"-1\">Agriculture<\/button><button type=\"button\" role=\"tab\" id=\"cg-t-data\" aria-controls=\"cg-p-data\" aria-selected=\"false\" tabindex=\"-1\">Data centres<\/button><\/div>\n<div class=\"cg-panel\" role=\"tabpanel\" id=\"cg-p-home\" aria-labelledby=\"cg-t-home\" tabindex=\"0\">\n<div><span class=\"cg-k\">Homes \/ Villas \/ Residential developments<\/span><\/p>\n<h3>Comfort with a considered<br \/>energy strategy.<\/h3>\n<p>Evaluate geothermal heating and cooling for new developments and retrofits, with attention to comfort, available land, installation access and the lifetime operating profile.<\/p>\n<div class=\"cg-deliver\"><b>Design focus:<\/b> load assessment, ground-loop options, heat-pump selection, distribution and controls.<\/div>\n<\/div>\n<ul class=\"cg-list\">\n<li>Hourly and seasonal heating and cooling demand<\/li>\n<li>Horizontal or vertical ground heat exchangers<\/li>\n<li>Ground properties and thermal testing where warranted<\/li>\n<li>Integration with existing HVAC and hot-water systems<\/li>\n<li>Whole-system energy use and lifecycle economics<\/li>\n<\/ul>\n<\/div>\n<div class=\"cg-panel\" role=\"tabpanel\" id=\"cg-p-facility\" aria-labelledby=\"cg-t-facility\" tabindex=\"0\" hidden>\n<div><span class=\"cg-k\">Commercial \/ Institutional \/ Industrial<\/span><\/p>\n<h3>Connect thermal demand<br \/>across the facility.<\/h3>\n<p>Examine centralised and distributed configurations for offices, hotels, healthcare facilities, campuses and temperature-controlled industrial spaces.<\/p>\n<div class=\"cg-deliver\"><b>Design focus:<\/b> demand diversity, thermal networks, heat recovery, resilience and staged implementation.<\/div>\n<\/div>\n<ul class=\"cg-list\">\n<li>Coincident loads and opportunities for heat recovery<\/li>\n<li>Shared loops and district-scale thermal networks<\/li>\n<li>Equipment redundancy and maintenance access<\/li>\n<li>Hybrid heat rejection where ground balance requires it<\/li>\n<li>Metering, commissioning and operating performance<\/li>\n<\/ul>\n<\/div>\n<div class=\"cg-panel\" role=\"tabpanel\" id=\"cg-p-farm\" aria-labelledby=\"cg-t-farm\" tabindex=\"0\" hidden>\n<div><span class=\"cg-k\">Greenhouses \/ Controlled environments<\/span><\/p>\n<h3>A climate strategy<br \/>built around the crop.<\/h3>\n<p>Integrate ground heat exchange with greenhouse heat gains, ventilation, humidity control and crop requirements. Select air-based or liquid-based approaches through site-specific analysis.<\/p>\n<div class=\"cg-deliver\"><b>Design focus:<\/b> the complete growing environment, including temperature, humidity and operating water demand.<\/div>\n<\/div>\n<ul class=\"cg-list\">\n<li>Solar gains, shading and seasonal crop conditions<\/li>\n<li>Sensible and latent cooling loads<\/li>\n<li>Soil temperature, moisture and long-term thermal response<\/li>\n<li>Airflow, condensation, drainage and hygiene<\/li>\n<li>Water\u2013energy trade-offs and monitored pilot operation<\/li>\n<\/ul>\n<\/div>\n<div class=\"cg-panel\" role=\"tabpanel\" id=\"cg-p-data\" aria-labelledby=\"cg-t-data\" tabindex=\"0\" hidden>\n<div><span class=\"cg-k\">Digital infrastructure \/ Continuous thermal loads<\/span><\/p>\n<h3>Cooling resilience.<br \/>With the subsurface in view.<\/h3>\n<p>Assess ground-coupled heat rejection and hybrid cooling architectures for data centres, integrating facility-water temperatures, continuous IT loads and reliability requirements.<\/p>\n<div class=\"cg-deliver\"><b>Design focus:<\/b> transient ground response, hydraulic separation, backup capacity and heat-reuse opportunities.<\/div>\n<\/div>\n<ul class=\"cg-list\">\n<li>IT load, cooling architecture and supply-temperature limits<\/li>\n<li>Long-term ground heat accumulation under continuous rejection<\/li>\n<li>Liquid-cooling or air-cooling integration through suitable interfaces<\/li>\n<li>Free-cooling potential only where temperatures permit<\/li>\n<li>System energy, water demand and resilience assessment<\/li>\n<\/ul>\n<\/div>\n<p class=\"cg-note\">Ground temperature, geology and annual heat balance govern performance. Heat pumps, pumps, fans and backup systems are selected according to the application; passive cooling is not assumed.<\/p>\n<div class=\"cg-lab\" aria-labelledby=\"cg-lab-title\">\n<div class=\"cg-lab-top\">\n<div><span class=\"cg-k\">Interactive engineering insight<\/span><\/p>\n<h3 id=\"cg-lab-title\">Where does the heat go?<\/h3>\n<\/div>\n<div class=\"cg-toggle\" role=\"group\" aria-label=\"Heat balance mode\"><button type=\"button\" data-mode=\"cooling\" aria-pressed=\"true\">Cooling<\/button><button type=\"button\" data-mode=\"heating\" aria-pressed=\"false\">Heating<\/button><\/div>\n<\/div>\n<div class=\"cg-lab-grid\">\n<div>\n<div class=\"cg-control\"><label for=\"cg-load\"><span>Useful thermal load<\/span><output id=\"cg-load-label\" for=\"cg-load\">200 kW<\/output><\/label><input id=\"cg-load\" type=\"range\" min=\"20\" max=\"1000\" step=\"10\" value=\"200\"><\/div>\n<div class=\"cg-control\"><label for=\"cg-cop\"><span id=\"cg-cop-caption\">Assumed cooling COP<\/span><output id=\"cg-cop-label\" for=\"cg-cop\">4.0<\/output><\/label><input id=\"cg-cop\" type=\"range\" min=\"2\" max=\"8\" step=\"0.1\" value=\"4\"><\/div>\n<\/div>\n<div class=\"cg-metrics\" aria-live=\"polite\" aria-atomic=\"true\">\n<div class=\"cg-metric\"><b id=\"cg-q\">200 kW<\/b><span id=\"cg-load-caption\">Heat removed from the load<\/span><\/div>\n<div class=\"cg-metric\"><b id=\"cg-p\">50 kW<\/b><span>Compressor electricity input<\/span><\/div>\n<div class=\"cg-metric\"><b id=\"cg-ground\">250 kW<\/b><span id=\"cg-ground-caption\">Heat rejected to the ground<\/span><\/div>\n<p class=\"cg-equation\" id=\"cg-equation\">Ground heat rejection = cooling load + compressor input.<\/p>\n<\/div>\n<\/div>\n<p class=\"cg-note\">Illustrative heat-pump energy balance, not a performance forecast or sizing tool. COP is a user-selected assumption. Ground exchange is assumed to carry the full heat-pump source\/sink duty; pumps, fans, auxiliaries, heat recovery and losses are excluded. Real design uses measured conditions and equipment performance data.<\/p>\n<\/div>\n<\/section>\n<section class=\"cg-tint\" id=\"cg-resource\" aria-labelledby=\"cg-resource-title\">\n<div class=\"cg-w cg-section\">\n<div class=\"cg-head\">\n<div><span class=\"cg-k\">02 \/ Exploration to power generation<\/span><\/p>\n<h2 id=\"cg-resource-title\">Characterise the resource.<br \/>Build the development case.<\/h2>\n<\/div>\n<p>Geothermal development brings together heat, fluid pathways, engineering and project economics. CRETA connects exploration and reservoir evaluation with risk assessment and power-plant design.<\/p>\n<\/div>\n<div class=\"cg-tabs cg-road\" role=\"tablist\" aria-label=\"Geothermal development services\"><button type=\"button\" role=\"tab\" id=\"cg-s1\" aria-controls=\"cg-r1\" aria-selected=\"true\"><span>01<\/span>Explore &amp; target<\/button><button type=\"button\" role=\"tab\" id=\"cg-s2\" aria-controls=\"cg-r2\" aria-selected=\"false\" tabindex=\"-1\"><span>02<\/span>Evaluate the reservoir<\/button><button type=\"button\" role=\"tab\" id=\"cg-s3\" aria-controls=\"cg-r3\" aria-selected=\"false\" tabindex=\"-1\"><span>03<\/span>Assess the risks<\/button><button type=\"button\" role=\"tab\" id=\"cg-s4\" aria-controls=\"cg-r4\" aria-selected=\"false\" tabindex=\"-1\"><span>04<\/span>Design the plant<\/button><button type=\"button\" role=\"tab\" id=\"cg-s5\" aria-controls=\"cg-r5\" aria-selected=\"false\" tabindex=\"-1\"><span>05<\/span>Plan development<\/button><\/div>\n<div class=\"cg-panel\" role=\"tabpanel\" id=\"cg-r1\" aria-labelledby=\"cg-s1\" tabindex=\"0\">\n<div>\n<h3>Locate the opportunity.<br \/>Define what must be tested.<\/h3>\n<p>Integrate geological mapping, structural interpretation, geophysics, geochemistry and available well information to develop a conceptual geothermal model.<\/p>\n<\/div>\n<div class=\"cg-output\"><strong>Scope &amp; outputs<\/strong><\/p>\n<ul class=\"cg-list\">\n<li>Regional screening and prospect ranking<\/li>\n<li>Temperature evidence and fluid-pathway interpretation<\/li>\n<li>Target definition, data gaps and uncertainty<\/li>\n<li>Exploration programme and appraisal-well objectives<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div class=\"cg-panel\" role=\"tabpanel\" id=\"cg-r2\" aria-labelledby=\"cg-s2\" tabindex=\"0\" hidden>\n<div>\n<h3>Move from heat in place<br \/>to recoverable performance.<\/h3>\n<p>Evaluate reservoir geometry, temperature, permeability and fluid properties. Use well-test evidence and modelling to examine sustainable production and reinjection.<\/p>\n<\/div>\n<div class=\"cg-output\"><strong>Scope &amp; outputs<\/strong><\/p>\n<ul class=\"cg-list\">\n<li>Well-log interpretation and pressure\/flow-test analysis<\/li>\n<li>Reservoir characterisation and resource uncertainty<\/li>\n<li>Production\u2013reinjection scenarios and thermal breakthrough<\/li>\n<li>Forecasts, sensitivity analysis and monitoring needs<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div class=\"cg-panel\" role=\"tabpanel\" id=\"cg-r3\" aria-labelledby=\"cg-s3\" tabindex=\"0\" hidden>\n<div>\n<h3>Make uncertainty visible<br \/>before committing capital.<\/h3>\n<p>Examine subsurface, drilling, operational and environmental risks alongside the consequences for project delivery and economics.<\/p>\n<\/div>\n<div class=\"cg-output\"><strong>Scope &amp; outputs<\/strong><\/p>\n<ul class=\"cg-list\">\n<li>Temperature, productivity and injectivity uncertainty<\/li>\n<li>Well integrity, corrosion, scaling and fluid chemistry<\/li>\n<li>Induced seismicity, subsidence and groundwater risks where relevant<\/li>\n<li>Risk register, mitigation actions and decision gates<\/li>\n<\/ul>\n<p class=\"cg-note\"><a class=\"cg-link\" href=\"https:\/\/cretagrp.com\/?page_id=304\">Environmental &amp; social assessment \u2197<\/a><\/p>\n<\/div>\n<\/div>\n<div class=\"cg-panel\" role=\"tabpanel\" id=\"cg-r4\" aria-labelledby=\"cg-s4\" tabindex=\"0\" hidden>\n<div>\n<h3>Match the conversion system<br \/>to the proven resource.<\/h3>\n<p>Develop a plant design basis around production conditions, fluid chemistry, heat rejection and the electrical or thermal offtake.<\/p>\n<\/div>\n<div class=\"cg-output\"><strong>Scope &amp; outputs<\/strong><\/p>\n<ul class=\"cg-list\">\n<li>Binary\/ORC, flash or other appropriate cycle screening<\/li>\n<li>Process heat-and-mass balances and equipment sizing<\/li>\n<li>Gathering, reinjection, cooling and electrical interfaces<\/li>\n<li>Net output after pumping, cooling and auxiliary demand<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div class=\"cg-panel\" role=\"tabpanel\" id=\"cg-r5\" aria-labelledby=\"cg-s5\" tabindex=\"0\" hidden>\n<div>\n<h3>Connect technical evidence<br \/>with a practical delivery plan.<\/h3>\n<p>Develop phased implementation options and define the information needed for procurement, commissioning and long-term operation.<\/p>\n<\/div>\n<div class=\"cg-output\"><strong>Scope &amp; outputs<\/strong><\/p>\n<ul class=\"cg-list\">\n<li>Capital and operating cost estimates with stated basis<\/li>\n<li>Economic sensitivity and development scenarios<\/li>\n<li>Technical specifications and engineering coordination<\/li>\n<li>Commissioning criteria and performance-monitoring plans<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p class=\"cg-note\">Plant capacity and conversion technology follow the resource assessment. Temperature or depth alone does not establish commercially viable power generation.<\/p>\n<\/div>\n<\/section>\n<section class=\"cg-w cg-section\" id=\"cg-wells\" aria-labelledby=\"cg-well-title\">\n<div class=\"cg-well\">\n<div><span class=\"cg-k\">03 \/ Oil &amp; gas well repurposing<\/span><\/p>\n<h2 id=\"cg-well-title\">A well\u2019s original purpose<br \/>may not be its last.<\/h2>\n<p>Existing wells can offer subsurface access, historical data and installed infrastructure. CRETA evaluates whether depleted or inactive oil and gas assets can support a technically sound geothermal application.<\/p>\n<div class=\"cg-callout\">Start with the well\u2019s condition.<br \/>Prove the thermal opportunity.<br \/>Then select its next use.<\/div>\n<p class=\"cg-note\">Repurposing is assessed case by case. Re-entry, remediation and conversion costs can outweigh the value of the available heat.<\/p>\n<\/div>\n<div>\n<details open>\n<summary>Direct heat &amp; heat-pump integration<\/summary>\n<div class=\"cg-detail\">\n<p>Assess recoverable heat for nearby buildings, agricultural facilities, thermal networks or suitable processes. Heat pumps may raise the delivery temperature where required.<\/p>\n<ul class=\"cg-list\">\n<li>Match source temperature and flow to a real heat demand<\/li>\n<li>Consider transport distance, fluid isolation and chemistry<\/li>\n<li>Evaluate reinjection, thermal decline and operating energy<\/li>\n<\/ul>\n<\/div>\n<\/details>\n<details>\n<summary>Power generation where justified<\/summary>\n<div class=\"cg-detail\">\n<p>Screen generation options, including binary cycles, where well deliverability and temperature support a viable net output.<\/p>\n<ul class=\"cg-list\">\n<li>Use measured or defensibly corrected temperature data<\/li>\n<li>Account for production and reinjection pumping<\/li>\n<li>Compare net generation with workover and plant costs<\/li>\n<\/ul>\n<\/div>\n<\/details>\n<details>\n<summary>Closed-loop well conversion<\/summary>\n<div class=\"cg-detail\">\n<p>Evaluate an isolated downhole heat exchanger where the well geometry and integrity permit it. Heat transfer through the well and surrounding formation can constrain output.<\/p>\n<ul class=\"cg-list\">\n<li>Review casing, cement, completion and usable diameter<\/li>\n<li>Model thermal resistance and time-dependent heat recovery<\/li>\n<li>Assess circulation losses and conversion requirements<\/li>\n<\/ul>\n<\/div>\n<\/details>\n<details>\n<summary>Co-produced heat from active fields<\/summary>\n<div class=\"cg-detail\">\n<p>For wells still in production, assess heat recovery from produced fluids alongside the existing oil and gas operation.<\/p>\n<ul class=\"cg-list\">\n<li>Understand fluid rates, temperatures and separation needs<\/li>\n<li>Protect hydrocarbon operations and materials compatibility<\/li>\n<li>Evaluate heat use or generation without assuming viability<\/li>\n<\/ul>\n<\/div>\n<\/details>\n<\/div>\n<\/div>\n<div class=\"cg-gates\">\n<div class=\"cg-gate\"><b>01 \/ Asset condition<\/b><\/p>\n<p>Completion records, barriers, integrity tests, ownership and access.<\/p>\n<\/div>\n<div class=\"cg-gate\"><b>02 \/ Thermal evidence<\/b><\/p>\n<p>Temperature profiles, flow history, chemistry and recovery behaviour.<\/p>\n<\/div>\n<div class=\"cg-gate\"><b>03 \/ System match<\/b><\/p>\n<p>Demand location, conversion options, reinjection and operating limits.<\/p>\n<\/div>\n<div class=\"cg-gate\"><b>04 \/ Development case<\/b><\/p>\n<p>Workover scope, approvals, lifecycle economics and closure obligations.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"cg-tint\">\n<div class=\"cg-w cg-section\">\n<div class=\"cg-head\">\n<div><span class=\"cg-k\">Engineering clarity<\/span><\/p>\n<h2>Questions worth<br \/>answering early.<\/h2>\n<\/div>\n<p>A credible geothermal strategy makes its assumptions explicit. These distinctions shape both the engineering and the commercial case.<\/p>\n<\/div>\n<details>\n<summary>Does geothermal cooling require a compressor?<\/summary>\n<div class=\"cg-detail\">Ground-source heat-pump systems normally use a compressor. Direct ground cooling can reduce or bypass compressor operation only when ground and delivery temperatures allow it; circulation energy still matters. The selected configuration depends on the application.<\/div>\n<\/details>\n<details>\n<summary>Can the ground absorb heat indefinitely?<\/summary>\n<div class=\"cg-detail\">Continuous heat rejection can raise ground temperatures. Long-term design considers thermal response, annual heat balance, exchanger spacing and possible heat recovery or hybrid rejection. This is particularly important for data centres and cooling-dominated climates.<\/div>\n<\/details>\n<details>\n<summary>Can every depleted oil or gas well become a geothermal asset?<\/summary>\n<div class=\"cg-detail\">No. Suitability depends on integrity, temperature, heat-transfer or fluid-delivery potential, nearby demand, permissions and conversion economics. Some wells should be excluded during screening.<\/div>\n<\/details>\n<\/div>\n<\/section>\n<section class=\"cg-contact\" id=\"cg-contact\" aria-labelledby=\"cg-contact-title\">\n<div class=\"cg-w cg-section\">\n<div class=\"cg-contact-grid\">\n<div><span class=\"cg-k\">Begin with the right questions<\/span><\/p>\n<h2 id=\"cg-contact-title\">What could geothermal<br \/>do for your project?<\/h2>\n<p>Tell us your application, location and current stage. We can discuss the evidence required, the study scope and the next engineering decision.<\/p>\n<p><a class=\"cg-link\" href=\"mailto:malriahy@cretagrp.com\">malriahy@cretagrp.com<\/a><\/p>\n<\/div>\n<div><label for=\"cg-interest\">Select your area of interest<\/label><select id=\"cg-interest\"><option selected value=\"Residential heating and cooling\">Residential heating and cooling<\/option><option value=\"Facilities and campuses\">Facilities and campuses<\/option><option value=\"Agricultural climate systems\">Agricultural climate systems<\/option><option value=\"Data-centre cooling\">Data-centre cooling<\/option><option value=\"Exploration and reservoir evaluation\">Exploration and reservoir evaluation<\/option><option value=\"Geothermal power-plant design\">Geothermal power-plant design<\/option><option value=\"Oil and gas well repurposing\">Oil and gas well repurposing<\/option><\/select><\/p>\n<div class=\"cg-brief\" id=\"cg-brief\" aria-live=\"polite\">Useful starting information: location, building area, heating\/cooling loads, operating schedule and available land.<\/div>\n<div class=\"cg-actions\"><a class=\"cg-btn\" id=\"cg-email\" href=\"mailto:malriahy@cretagrp.com?subject=Geothermal%20project%20enquiry\">Open project enquiry <span aria-hidden=\"true\">\u2197<\/span><\/a><\/div>\n<p class=\"cg-note\" style=\"color:#c3d7ca\">Opens a draft in your email application. No information is submitted from this page.<\/p>\n<\/div>\n<\/div>\n<div class=\"cg-foot\"><span>CRETA GROUP \u00b7 Geothermal &amp; Subsurface Engineering<\/span><a href=\"#creta-geo\">Back to top \u2191<\/a><\/div>\n<\/div>\n<\/section>\n<div class=\"cg-w cg-reading\"><span>Technical context:<\/span><a href=\"https:\/\/www.energy.gov\/hgeo\/geothermal\/geothermal-heat-pumps\" target=\"_blank\" rel=\"noopener noreferrer\">DOE \/ Ground-source heat pumps \u2197<\/a><a href=\"https:\/\/www.energy.gov\/hgeo\/geothermal\/geothermal-basics\" target=\"_blank\" rel=\"noopener noreferrer\">DOE \/ Geothermal applications \u2197<\/a><a href=\"https:\/\/www.energy.gov\/hgeo\/geothermal\/wells-opportunity\" target=\"_blank\" rel=\"noopener noreferrer\">DOE \/ Existing-well opportunities \u2197<\/a><\/div>\n<p><noscript><\/p>\n<p style=\"padding:24px\">Enable JavaScript to explore all application tabs and the heat-balance illustration. Well-repurposing details and direct email contact remain available.<\/p>\n<p><\/noscript><br \/>\n<\/section>\n<p><script>\n(function(){\n'use strict';\nconst root=document.getElementById('creta-geo');if(!root||root.dataset.ready)return;root.dataset.ready='true';\nroot.querySelectorAll('[role=\"tablist\"]').forEach(list=>{const tabs=Array.from(list.querySelectorAll('[role=\"tab\"]'));function activate(tab){tabs.forEach(t=>{const selected=t===tab;t.setAttribute('aria-selected',String(selected));t.tabIndex=selected?0:-1;root.querySelector('#'+t.getAttribute('aria-controls')).hidden=!selected;});}tabs.forEach((tab,i)=>{tab.addEventListener('click',()=>activate(tab));tab.addEventListener('keydown',e=>{let n=i;if(e.key==='ArrowRight')n=(i+1)%tabs.length;else if(e.key==='ArrowLeft')n=(i-1+tabs.length)%tabs.length;else if(e.key==='Home')n=0;else if(e.key==='End')n=tabs.length-1;else return;e.preventDefault();tabs[n].focus();activate(tabs[n]);});});});\nroot.querySelectorAll('a[href^=\"#\"]').forEach(a=>a.addEventListener('click',e=>{const href=a.getAttribute('href');const target=href==='#creta-geo'?root:root.querySelector(href);if(!target)return;e.preventDefault();target.scrollIntoView({behavior:matchMedia('(prefers-reduced-motion: reduce)').matches?'auto':'smooth',block:'start'});if(!target.hasAttribute('tabindex'))target.setAttribute('tabindex','-1');target.focus({preventScroll:true});}));\nconst load=root.querySelector('#cg-load'),cop=root.querySelector('#cg-cop');let mode='cooling';const set=(id,value)=>root.querySelector('#'+id).textContent=value;\nfunction balance(){const q=Number(load.value),c=Number(cop.value),p=q\/c,g=mode==='cooling'?q+p:q-p;set('cg-load-label',q+' kW');set('cg-cop-label',c.toFixed(1));set('cg-q',q+' kW');set('cg-p',Number(p.toFixed(1))+' kW');set('cg-ground',Number(g.toFixed(1))+' kW');set('cg-cop-caption',mode==='cooling'?'Assumed cooling COP':'Assumed heating COP');set('cg-load-caption',mode==='cooling'?'Heat removed from the load':'Heat delivered to the load');set('cg-ground-caption',mode==='cooling'?'Heat rejected to the ground':'Heat extracted from the ground');set('cg-equation',mode==='cooling'?'Ground heat rejection = cooling load + compressor input.':'Ground heat extraction = heating load \u2212 compressor input.');}\nroot.querySelectorAll('[data-mode]').forEach(b=>b.addEventListener('click',()=>{mode=b.dataset.mode;root.querySelectorAll('[data-mode]').forEach(t=>t.setAttribute('aria-pressed',String(t===b)));balance();}));load.addEventListener('input',balance);cop.addEventListener('input',balance);balance();\nconst interest=root.querySelector('#cg-interest');const needs={\n'Residential heating and cooling':'location, building area, heating\/cooling loads, operating schedule and available land.',\n'Facilities and campuses':'location, building uses, hourly load profiles, existing HVAC, resilience requirements and expansion plans.',\n'Agricultural climate systems':'location, greenhouse geometry, crop requirements, temperature\/humidity targets, ventilation and water availability.',\n'Data-centre cooling':'location, IT load, cooling architecture, facility-water temperatures, redundancy requirements and available land.',\n'Exploration and reservoir evaluation':'location, geological\/geophysical data, temperature evidence, well records and intended application.',\n'Geothermal power-plant design':'resource temperature, tested production\/injection rates, fluid chemistry, offtake and ambient design conditions.',\n'Oil and gas well repurposing':'well location, completion and integrity records, temperature\/production history, ownership and nearby energy demand.'};\nfunction enquiry(){const value=interest.value,info=needs[value];set('cg-brief','Useful starting information: '+info);const body='Dear CRETA team,\\n\\nI would like to discuss '+value.toLowerCase()+'.\\n\\nProject location:\\nProject stage:\\nBrief description:\\n\\nAvailable information: '+info+'\\n\\nKind regards,';root.querySelector('#cg-email').href='mailto:malriahy@cretagrp.com?subject='+encodeURIComponent('Geothermal enquiry | '+value)+'&body='+encodeURIComponent(body);}\ninterest.addEventListener('change',enquiry);enquiry();\n})();\n<\/script><br \/>\n<\/body><\/html><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Geothermal Engineering &amp; Advisory | CRETA Group CRETA GROUP Heating &amp; coolingResource &amp; powerWell repurposingDiscuss a project \u2197 Geothermal \/ Geoscience \/ Engineering Energy beneath us.Possibilitiesahead. From climate control to power generation, CRETA connects subsurface understanding with the engineering needed to turn geothermal opportunities into viable projects. Define your project \u2197Explore our expertise 01Heating &amp; [&hellip;]<\/p>\n","protected":false},"author":2329,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template\/fullwidth.php","meta":{"footnotes":""},"class_list":["post-102","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Geothermal energy -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cretagrp.com\/?page_id=102\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Geothermal energy -\" \/>\n<meta property=\"og:description\" content=\"Geothermal Engineering &amp; Advisory | CRETA Group CRETA GROUP Heating &amp; coolingResource &amp; powerWell repurposingDiscuss a project \u2197 Geothermal \/ Geoscience \/ Engineering Energy beneath us.Possibilitiesahead. 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