Yes, it is possible to use a heat pump without solar panels, but the profitability depends on various factors, including the type of heat pump, energy efficiency, home insulation, local energy prices, and any subsidies.

Here are some considerations:

1. Type of Heat Pump:

   • The type of heat pump affects efficiency. For example, air-to-air heat pumps are generally less efficient than ground-to-water or air-to-water heat pumps. It is important to choose a system that suits the specific characteristics of your home.

2. Energy Efficiency:

   • Modern heat pumps are designed to operate efficiently, but the efficiency can vary. Pay attention to the seasonal performance (SCOP/SPF) when choosing a heat pump.

3. Home Insulation:

   • A well-insulated home contributes to the efficiency of the heat pump. Ensure that the home is well insulated to minimize heat loss.

4. Energy Prices:

   • The cost of electricity can affect profitability. If energy prices are high, operating the heat pump may be more expensive. It is important to know the local energy prices.

5. Subsidies and Tax Incentives:

   • Check if there are any subsidies or tax incentives available for installing a heat pump. These can reduce initial costs and improve profitability.

6. Financial Considerations:

   • Perform a cost-benefit analysis to compare the total investment and operational costs of the heat pump with the expected savings on energy costs.

7. Future Solar Panel Consideration:

   • If you do not currently have solar panels but are considering installing them in the future, you can design the system to be easily expandable to supply the heat pump with self-generated solar energy.