1. What is a Heat Pump STC Calculator?

Definition: This calculator estimates the number of Small-scale Technology Certificates (STCs) for heat pumps based on the system size and zone factor.

Purpose: It helps homeowners and installers determine the renewable energy certificates generated by heat pump installations.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( STC \) — Small-scale Technology Certificates
• \( Size \) — Heat pump capacity in kilowatts (kW)
• \( Zone\ Factor \) — Geographical multiplier (dimensionless)

Explanation: The heat pump size is multiplied by a zone-specific factor that accounts for regional solar conditions.

3. Importance of STC Calculation

Details: STCs represent renewable energy generation and can be traded for financial incentives, reducing the net cost of heat pump installations.

4. Using the Calculator

Tips: Enter the heat pump size in kW and the zone factor (default 1.0). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What are STCs?
A: Small-scale Technology Certificates are tradable certificates created for eligible renewable energy systems.

Q2: How do I find my zone factor?
A: Zone factors are determined by your location and can be found in government renewable energy scheme documents.

Q3: Can I use this for other renewable systems?
A: No, this calculator is specifically designed for heat pump systems.

Q4: What's a typical heat pump size?
A: Residential heat pumps typically range from 5kW to 20kW depending on home size and climate.

Q5: How are STCs redeemed?
A: STCs can be claimed through registered agents and are typically factored into your installation rebate.