Field Reviews & Case Studies
Read how facility managers, site electricians, and infrastructure operators apply the principles learned in our workshops to their daily operational workflows.
Detailed Facility Implementation Reports
Documented outcomes from operators who implemented our thermal and tariff methodologies.
Eliminating Peak Tariff Losses in a 350kW Gyeonggi Deployment
Facility Profile: A converted manufacturing warehouse in Hwaseong housing 110 ASIC units operating under KEPCO Industrial Power (High-Voltage Eul).
The Challenge: During the July-August peak window (14:00 to 17:00), electricity costs jumped to ₩218/kWh, causing the units to run at a negative cash margin of roughly ₩42,000 per hour across the site.
The Solution: Following the Commercial Mining Economics Workshop, the site manager implemented an automated API script that spins down 80% of hash boards during the 3-hour peak window while maintaining auxiliary airflow to purge heat.
Resolving Hot-Aisle Recirculation in a Dense Rack Cluster
Facility Profile: A 180kW self-hosted container deployment experiencing persistent machine throttling above 32°C ambient outdoor temperature.
The Challenge: Intake temperature sensors on top-shelf units recorded 48°C due to hot exhaust air curling over the top rack baffle.
The Solution: Using airflow CFM formulas and thermal mapping techniques from the Facility Power & Thermal Efficiency Audit Clinic, the operator installed rigid polycarbonate ceiling blanking panels and adjusted exhaust fan RPM to achieve neutral static pressure.
Verified Workshop Reviews
"Before attending Choi Yuna's two-day intensive, our facility was burning unneeded kilowatts during the 14:00 summer tariff peaks. The workshop walked us step-by-step through setting up automated curtailment triggers linked directly to our KEPCO high-voltage industrial tier. The spreadsheet templates provided in the lab became our weekly budgeting baseline, saving our 250kW deployment roughly ₩3,800,000 in demand charge penalties in the first two months alone."
"The hands-on FLIR thermal imaging exercise on the 380V distribution boards revealed a 14-degree imbalance across Phase B on our main breaker that had gone unnoticed for months. The instruction is dense and requires serious attention to electrical math, but the practical diagnostics inside the Daegot testbed gave me the exact tools needed to re-balance our rack distribution without hiring external consulting firms."
"The workshop provided rigorous formulas for calculating network difficulty adjustments and hash price sensitivities. While the pre-reading financial models were somewhat complex and took several days to fully absorb after the session concluded, the methodology for factoring in hardware salvage depreciation versus ongoing power draw allowed our team to present a grounded risk assessment to our investment committee."
"Learning how to diagnose failing LDO regulators and measure voltage drops across individual domain chains changed how we triage dead hash boards. Instead of discarding boards with minor sensor errors, we now run firmware diagnostics that pinpoint faulty components within minutes."