Invoice Mechanical Engineer in New Zealand Wellington –Free Word Template Download with AI
Chartered Mechanical Engineering Services
Level 4, 123 Lambton Quay
Wellington Central, Wellington 6011
New Zealand
Phone: +64 4 555 0199
Email: [email protected]
BNZ: 02-0110-0123456-00
Bill To:
Harbour City Developments Ltd.
Attn: Procurement Department
55 Customhouse Quay
Wellington CBD, Wellington 6011
New Zealand
Project Location:
The Wellington Innovation Hub
10-12 Molesworth Street
Wellington, New Zealand
Site Contact: Mr. James Thorne
Thank you for choosing Wellington Precision Engineering Ltd. for your mechanical engineering requirements. This invoice covers the professional services rendered by our team of Chartered Mechanical Engineers based in New Zealand Wellington, specifically regarding the thermal efficiency audit and HVAC system redesign for the Innovation Hub project.
| # | Description of Services | Hours / Qty | Rate (NZD) | Amount (NZD) |
|---|---|---|---|---|
| 1 |
Initial Site Survey & Mechanical Systems Audit Comprehensive on-site assessment of existing mechanical plant rooms located in Wellington. Evaluation of boiler efficiency, ductwork integrity, and pressure loss calculations. Compliance check against NZS 3604 and local Wellington City Council bylaws. |
12.0 | 245.00 | 2,940.00 |
| 2 |
Thermal Load Calculations & CFD Modelling Detailed heat loss/gain analysis using industry-standard software. Computational Fluid Dynamics (CFD) simulation to optimize airflow distribution within the new office fit-out. Specific consideration given to Wellington's unique wind patterns and coastal humidity levels. |
24.5 | 265.00 | 6,492.50 |
| 3 |
Design of Variable Refrigerant Flow (VRF) System Schematic and detailed design of a high-efficiency VRF system. Selection of compressors and condensers suitable for New Zealand's climate zone. Preparation of single-line diagrams and riser diagrams for the mechanical installation team. |
40.0 | 265.00 | 10,600.00 |
| 4 |
Hydraulic Pumping System Design Sizing and specification of primary and secondary chilled water pumps. Calculation of pipe diameters to minimize friction loss and energy consumption. Ensuring compliance with the Building Code Clause G12 (Energy Efficiency). |
16.0 | 265.00 | 4,240.00 |
| 5 |
Technical Documentation & Council Submission Compilation of the full mechanical engineering report. Preparation of drawings for submission to Wellington City Council for building consent approval. Includes risk assessment and maintenance schedules for the mechanical assets. |
18.0 | 245.00 | 4,410.00 |
| 6 |
Site Supervision & Commissioning Support On-site oversight during the installation of mechanical units. Verification of pressure testing and leak detection procedures. Final commissioning checks to ensure system performance matches design parameters. |
8.0 | 245.00 | 1,960.00 |
| Subtotal: | 30,642.50 |
| GST (15%): | 4,596.38 |
| TOTAL DUE (NZD): | 35,238.88 |
Payment Instructions
Please make payment within 30 days of the invoice date to avoid late fees.
Bank: BNZ (Bank of New Zealand)
Account Name: Wellington Precision Engineering Ltd.
Account Number: 02-0110-0123456-00
Reference: INV-WLG-2023-089
Note: Please ensure the reference number is included to facilitate quick reconciliation of your account.
Terms and Conditions
- All services are provided by qualified Mechanical Engineers registered with Engineering New Zealand.
- Prices are quoted in New Zealand Dollars (NZD) and include Goods and Services Tax (GST) at the prevailing rate of 15%.
- Payment is due within 30 days of the invoice date. A late payment fee of 1.5% per month will be applied to overdue balances.
- This invoice covers the professional engineering services only. Supply of physical materials (pipes, units, valves) is billed separately by the contractor unless otherwise agreed.
- Wellington Precision Engineering Ltd. warrants that all designs comply with the New Zealand Building Code and relevant standards.
- Any disputes regarding this invoice must be raised in writing within 14 days of receipt.
Authorized By:
Dr. Sarah Jenkins
Principal Mechanical Engineer
Chartered Professional Engineer (CPEng)
Received By:
__________________________
Date: ____________________
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