How Much Does It Cost To Run Geothermal Drilling Each Month?
Geothermal Drilling Running Costs
Running a Geothermal Drilling business demands significant fixed overhead and substantial working capital to cover the initial capital expenditure (CapEx) and the ramp-up period In 2026, your baseline fixed running costs—covering payroll for six full-time equivalent (FTE) roles and essential overhead—start near $87,758 per month This figure does not include project-specific variable costs, which can add 22% to 25% of revenue in materials and direct equipment rental This guide breaks down the seven largest recurring expenses, from specialized insurance to high-value payroll, helping founders budget accurately for sustainable operations
7 Operational Expenses to Run Geothermal Drilling
#
Operating Expense
Expense Category
Description
Min Monthly Amount
Max Monthly Amount
1
Payroll
Personnel
The 2026 payroll budget covers 65 FTEs, including the CEO at $180,000 annually.
$63,958
$63,958
2
Rent & Insurance
Fixed Overhead
Fixed overhead totals $23,800 monthly, driven by office rent and specialized insurance costs.
$23,800
$23,800
3
Materials
COGS
Materials and consumables are estimated at 160% of revenue in 2026, dropping to 140% by 2030.
$0
$0
4
Equipment Rental
COGS
Direct project equipment rental starts at 60% of revenue in 2026, optimized down to 40% by 2030.
$0
$0
5
Customer Acquisition
Marketing
The 2026 marketing budget is $150,000, managing a Customer Acquisition Cost (CAC) of $5,500 per customer.
$12,500
$12,500
6
Compliance Fees
G&A
Regulatory costs include $4,000 for insurance and $2,500 for legal and accounting fees monthly.
$6,500
$6,500
7
Fleet & R&D
Operations
Vehicle leases and maintenance cost $2,800 monthly, plus a $3,000 base allocation for operational R&D.
$5,800
$5,800
Total
Total
All Operating Expenses
$112,558
$112,558
What is the total monthly running cost budget required to operate Geothermal Drilling sustainably?
The total monthly running cost for Geothermal Drilling is driven by fixed overhead of $23,800 plus projected 2026 payroll of $63,958, with variable costs adding another 22% layer based on revenue. To understand the initial capital needed before revenue ramps up, check out What Is The Estimated Cost To Open And Launch Your Geothermal Drilling Business?
Fixed Cost Baseline
Monthly fixed overhead sits at $23,800.
Payroll projections for 2026 hit $63,958 monthly.
These costs are incurred regardless of project volume.
Keep an eye on these numbers; they defintely set your monthly burn rate.
Variable Cost Structure
Variable costs scale at 22% of total revenue.
This percentage covers direct expenses like consumables or subcontractor fees.
Higher revenue means higher variable spend, but contribution margin matters most.
Focus on maximizing project margin to offset these ongoing costs.
Which recurring cost category represents the largest financial commitment in the first year?
For the Geothermal Drilling business, the largest recurring cost in year one is defintely personnel, hitting $767,500 annually. This figure dwarfs the other major buckets, which is expected when the core product is specialized, high-skill labor. You can see how this compares to industry norms when looking at How Much Does The Owner Of Geothermal Drilling Business Typically Make?.
Payroll Dominates Year One
Annual payroll commitment is $767,500.
Labor cost represents the primary operational expense.
Focus on efficient crew scheduling immediately.
High upfront investment in technical staff is required.
Overhead vs. Marketing Spend
Fixed overhead sits at $285,600 annually.
Marketing budget is significantly smaller at $150,000.
Fixed costs are nearly double the marketing spend.
Keep marketing spend lean until revenue scales up.
How much working capital is necessary to cover operations until the August 2026 break-even date?
The required working capital to sustain Geothermal Drilling operations until profitability centers on covering the peak deficit, which is $206 million in September 2026, just after the August 2026 break-even point. Before diving into the specifics of capital needs, founders should review What Are The Key Steps To Develop A Comprehensive Business Plan For Launching Geothermal Drilling Services? to map out the path to that break-even date.
Peak Cash Requirement
Plan for the $206 million minimum cash requirement.
This peak deficit hits in September 2026.
Break-even is targeted for August 2026.
This capital defintely covers the operational lag before positive cash flow stabilizes.
Operational Focus Until Break-Even
Fundraising must close well before the September 2026 cash trough.
Every project must drive down the cost per billable hour.
Focus on securing large commercial and industrial contracts first.
High energy demand clients provide the most immediate revenue density.
If revenue targets are missed, how will we cover the high fixed monthly operating costs of $87,758?
If revenue targets are missed, covering the $87,758 in fixed monthly operating costs requires quickly isolating non-essential spending while maintaining core drilling capability. Have You Considered The Necessary Permits To Start Geothermal Drilling Business? outlines external hurdles, but managing internal burn rate is key now.
Quantify Immediate Reductions
Identify base R&D investment scheduled at $3,000 per month.
These two items alone free up $4,800; defintely review all SaaS agreements next.
Delay purchasing non-critical spare parts inventory until cash flow stabilizes.
Protect Revenue Drivers
Do not cut direct field labor or essential drilling crew wages.
Keep rig maintenance schedules active to prevent downtime later.
Focus sales efforts on high-complexity projects that maximize billable hours.
If project mobilization takes longer than 10 days, push for milestone payments sooner.
Key Takeaways
The foundational fixed overhead for operating the geothermal drilling business starts at approximately $87,758 per month, which must be covered before variable project costs are factored in.
A substantial working capital buffer of $206 million is necessary to cover the initial cash trough, which is projected to hit its minimum requirement shortly after the August 2026 break-even point.
Specialized staff payroll, budgeted at $767,500 annually for 6.5 FTEs, constitutes the single largest recurring financial commitment in the first year of operations.
Variable costs are extremely high, with materials estimated at 160% of revenue and direct equipment rental at 60% of revenue in 2026, placing immense pressure on profitability.
Running Cost 1
: Specialized Staff Payroll
2026 Headcount Cost
Your 2026 payroll budget for 65 full-time employees (FTEs) is set at $767,500 annually. This figure covers critical leadership roles, specifically the $180,000 salary for the CEO and $180,000 combined for the two Drilling Crew Leads. This is a major fixed operating expense you must cover before revenue hits.
Payroll Inputs
This $767,500 payroll estimate for 65 FTEs must account for more than just base salaries; it needs employer payroll taxes, health insurance contributions, and 401(k) matching. The known inputs are the $180k CEO salary and $90k per Drilling Crew Lead. We need the average loaded rate for the other 62 staff to verify accuracy.
Total FTEs: 65
CEO Cost: $180,000
Lead Cost: $180,000 total
Managing Labor Spend
Managing specialized labor cost hinges on controlling the loaded rate (salary plus benefits/taxes). Since drilling expertise is scarce, focus on retention to avoid high replacement costs. If onboarding takes 14+ days, churn risk rises defintely. Keep the ratio of high-cost staff (like the Leads) efficient relative to project volume.
Benchmark loaded rates against industry peers.
Tie bonuses to project profitability, not just utilization.
Avoid unnecessary overtime accrual.
Payroll as Fixed Cost
Staff payroll is largely a fixed operating expense until you scale headcount significantly. With 65 people budgeted, this $767.5k annual cost must be covered every month, regardless of project flow. This means your break-even point is heavily influenced by how quickly you can fill those 65 roles with billable work.
Running Cost 2
: Office & Facility Rent
Fixed Overhead Snapshot
Fixed overhead for EarthCore Geothermal is set at $23,800 monthly, dominated by real estate and necessary risk coverage. You must cover $8,500 in rent plus $4,000 for specialized insurance before earning a dime.
Fixed Overhead Components
This $23,800 monthly overhead is your starting point before any drilling project revenue arrives. The $8,500 Office Rent covers the physical space for administration. You also budget $4,000 monthly for specialized Insurance, specifically General Liability and Equipment coverage, which is non-negotiable for this industry. Honestly, this fixed base is substantial.
Rent: $8,500/month
Specialized Insurance: $4,000/month
Remaining Fixed Costs: $11,300
Managing Facility Costs
Rent is tough to cut once signed, so negotiate lease terms carefully, perhaps opting for shorter initial commitments. Review the $4,000 insurance allocation annually; ensure deductibles align with your cash reserves to lower the premium. Don't pay for more square footage than the 65 FTEs actually need right now.
Negotiate shorter initial lease terms.
Shop specialized insurance quotes aggressively.
Ensure space matches current headcount needs.
Overhead vs. Payroll
This $23,800 fixed overhead sits on top of the $767,500 annual payroll budget. You need significant project volume just to cover these structural costs before factoring in the huge 160% COGS from materials and equipment rental.
Running Cost 3
: Materials & Consumables
High COGS Hurdle
Materials and consumables represent a massive 160% of revenue in 2026, showing immediate negative gross margin. Focus on procurement efficiency now because this COGS element defines your early viability, even as it should improve to 140% by 2030.
Cost Inputs Needed
This Cost of Goods Sold (COGS) category covers all physical items consumed during drilling, like specialized drill bits, casing, and drilling fluids. Since this cost is 160% of revenue in 2026, you need precise tracking of material usage per foot drilled. Honestly, you need quotes based on projected annual volume, not just single-job pricing.
Track consumption per project foot.
Material costs drive initial margin.
Need volume discounts early.
Optimizing Materials Spend
Getting materials below 100% of revenue is the main goal, but the immediate target is hitting the 140% benchmark by 2030. Negotiate bulk pricing based on projected yearly needs, not just current project needs. Avoid paying for expedited shipping, which destroys margins fast.
Standardize material specs across projects.
Lock in supplier contracts now.
Minimize on-site material waste.
Margin Reality Check
With consumables at 160% of revenue, your gross margin is negative before considering fixed overheads like payroll ($767,500 in 2026) or rent ($23,800 monthly). Every dollar earned is currently spent on materials plus 60 cents more, making operational efficiency paramount for survival.
Running Cost 4
: Direct Equipment Rental
Rental Cost Target
Direct equipment rental is a major variable cost eating 60% of revenue in 2026. Your primary operational focus must be aggressively driving this down to 40% by 2030 to secure profitability in this high-touch service. This cost directly scales with every drilling job you complete.
Cost Input Factors
This cost covers heavy machinery needed for drilling, like specialized rigs and earth movers, classified as variable Cost of Goods Sold (COGS). You must track this as a percentage of gross revenue, not fixed overhead. If revenue hits $10M in 2026, you're defintely looking at $6M spent just on rentals.
Track as percentage of revenue.
Inputs: Rig utilization rate.
Budget impact: 60% initially.
Optimization Levers
Reducing rental dependency requires strategic fleet planning. Since you use advanced tech from oil and gas, explore phased purchasing over pure rental for high-utilization assets. Avoid long lead times causing emergency, high-rate rentals.
Negotiate multi-month contracts.
Benchmark against purchase cost.
Target 40% by 2030.
Margin Pressure Point
Compare this 60% benchmark against the 160% Materials & Consumables cost. Together, these two variable COGS components dominate your gross margin structure early on. Success depends on negotiating better long-term rental agreements or accelerating asset acquisition timelines faster than projected.
Running Cost 5
: Customer Acquisition
CAC Pressure
Your 2026 customer acquisition plan hinges on managing a very high Customer Acquisition Cost (CAC) of $5,500. With a total marketing budget set at $150,000 annually, you can only afford roughly 27 new customers next year. This low volume means every lead must convert efficiently.
Budget Breakdown
This $150,000 marketing spend is dedicated solely to acquiring customers for deep geothermal drilling projects. A $5,500 CAC reflects the long sales cycle and high-value nature of targeting commercial and industrial facilities. You need precise tracking of marketing spend versus qualified project pipeline generation.
Covers site assessment marketing.
Funds specialized lead generation.
Requires high lifetime value (LTV).
Managing High Cost
Managing this expensive acquisition requires focusing on high-quality referrals and deep industry penetration rather than broad advertising. Since the sales cycle is long, focus on nurturing prospects through the initial site assessment phase. Defintely reduce reliance on paid channels.
Prioritize industry partnerships.
Maximize conversion from site visits.
Track Cost Per Qualified Lead.
LTV Check
Given the $5,500 CAC, your immediate financial focus must be proving the Lifetime Value (LTV) of these few customers exceeds this cost by a factor of three or more. If LTV is low, this acquisition strategy is unsustainable.
Running Cost 6
: Regulatory Compliance
Compliance Cost Structure
Regulatory compliance demands a fixed monthly spend of $6,500, covering essential insurance and professional services. This cost addresses the high liability inherent in deep earth drilling and navigating complex environmental regulations. This is non-negotiable overhead for geothermal work.
Cost Breakdown
Your $6,500 monthly compliance budget splits into $4,000 for specialized insurance and $2,500 for legal and accounting support. This directly covers high-risk liability from drilling operations and adherence to state permitting standards. You need quotes for specialized coverage before signing leases.
Insurance: $4,000 monthly premium.
Legal/Accounting: $2,500 monthly retainer.
Covers deep drilling liability exposure.
Managing Compliance Spend
Reducing this fixed cost risks operational shutdown or massive fines, so focus on efficiency, not cuts. Standardize initial site assessment documentation to reduce billable legal hours, potentially saving 10% on the $2,500 fee. Don't defintely shop around for general liability; you need specialized coverage.
Given the $6,500 monthly spend, your project pricing must capture this cost immediately. This overhead exists before the first foot of earth is drilled. If project acquisition is slow, this compliance burden pressures your initial cash runway significantly.
Running Cost 7
: Fleet & Technology Costs
Fleet & Tech Costs
Fleet and technology costs total $5,800 monthly, split between keeping essential vehicles running and funding future efficiency gains. This recurring spend covers necessary mobility and dedicated research into improving your specialized drilling operations. You need to track the utilization of these assets closely.
Cost Allocation
This $5,800 covers $2,800 for vehicle leases and maintenance, ensuring crews can reach sites like commercial facilities or municipal projects. The remaining $3,000 monthly is an internal allocation for R&D (Research and Development), specifically targeting operational improvements in drilling technology. This is a fixed operational commitment regardless of revenue volume.
Optimization Focus
Since vehicle costs are low compared to Materials & Consumables (160% of revenue), focus optimization on the R&D spend effectiveness. Ensure the $3,000 R&D investment directly targets reducing the high variable costs, like the 60% direct equipment rental rate projected for 2026. If R&D fails to cut rental spend by 2026, this allocation is defintely just overhead.
Tracking R&D Impact
Treat that $3,000 as a project budget, not just a line item. Tie it directly to milestones that reduce the $5,500 Customer Acquisition Cost (CAC) or improve the Materials COGS percentage. If you can’t measure its impact on project throughput or cost per foot drilled, cut it immediately.
