After correcting to an actual CEPCI index of 831.7 (mid Q2 2022), the total installed cost is estimated using the Enhanced Detailed Factor (EDF) method developed by Nils Henrik Eldrup (USN and SINTEF Tel-Tek) and described and applied elsewhere . The EDF method is an equipment factored method and as such a further development of the original Hand method . Compared to other versions of the Hand method e.g., the method and factors proposed by Woods where installation factors are equipment specific and fixed regardless of equipment size/cost, the EDF installation factors are dependent on the equipment cost instead of type. For the EDF method, the installation factors are high for less expensive equipment and vice versa, lower for more expensive equipment.