How it works: Compare investing in solar panels vs putting the same money in equity markets. For example, with the following values, this shows that a solar investment of €6,000 will generate the equivalent of €1,462 in today’s value, and which would be the same as getting a 9.2% return from equity markets.
💰 Investment Parameters
Investment Amount (€) Amount invested in either equity markets or solar installation
Time Horizon (years)
Inflation Rate (%) Used to calculate present values
📈 Equity Markets
Annual Equity Return (%)
Tax Rate on Gains (%)
☀️ Solar Investment
Annual Energy Savings Year 1 (€)
Energy Cost Growth Rate (%)
-
€0
Present Day Value (Solar NPV - Equity PV)
Equivalent equity return: 0.0%
Equity Markets
€0
After-ta…
How it works: Compare investing in solar panels vs putting the same money in equity markets. For example, with the following values, this shows that a solar investment of €6,000 will generate the equivalent of €1,462 in today’s value, and which would be the same as getting a 9.2% return from equity markets.
💰 Investment Parameters
Investment Amount (€) Amount invested in either equity markets or solar installation
Time Horizon (years)
Inflation Rate (%) Used to calculate present values
📈 Equity Markets
Annual Equity Return (%)
Tax Rate on Gains (%)
☀️ Solar Investment
Annual Energy Savings Year 1 (€)
Energy Cost Growth Rate (%)
-
€0
Present Day Value (Solar NPV - Equity PV)
Equivalent equity return: 0.0%
Equity Markets
€0
After-tax value
Present Value: €0 Present value of future after-tax amount discounted using inflation rate
Solar Investment
€0
Net savings value
Net Present Value: €0 NPV of annual cash flows discounted using the inflation rate
Sensitivity Analysis
Vary parameter:
Notes:
- This calculator does not account for the important consideration of your reduced carbon footprint.
- Solar takes a while to break even given the upfront cost. However that can change if you sell your home and crystalize its increase in value (which this calculator may help you to quantify).