Thermodynamic Solar Panel Running Costs
Ever wondered how much you would save by installing a Thermodynamic Solar Panel System? Want lots of the hot water all year round, 24 hrs a day, without thinking about it or worrying about the expense?
Wonder and worry no more, below is a comparison of the running cost of a Thermodynamic Solar Panel System compared with using oil, gas and electric shower to heat your water. Comparisons are made of the running costs to generate hot water for a family of four people consuming 200 litres of hot water per day.
Running cost using Thermodynamics
Power Consumption | Power Output | Cost Per Hr € | Average Daily Hrs | Average Daily Cost | Average Annual Cost |
500 watts | 2000 watts | €0.09 | 7 | €0.59 | €217 |
Running cost using oil, gas and electric shower
Hours Daily | Cost Daily | Cost Total | |
Oil/Gas Boiler | 1 | €1.50 | €360.00 (8 months) |
3kw Immersion | 4 | €2.04 | €244.80 (4 months) |
9kw Shower | 1 | €1.53 | €588.45 (12 months) |
Total Cost | €1,163.25 Annual |
Note: Oil/Gas boiler consumption can vary depending on size of boiler and efficiency level, so we take an average of both based on SEAI fuel consumption chart. Based on average current electricity price of €0.17/kwh.
Savings
System | Total (annual) |
Oil/Gas/Shower Running Cost | €1,163.25 |
Thermodynamic Solar Running Cost | €217.00 |
Savings per annum | €946.25 |
Typical cost of Thermodynamic Solar System | €4,500.00 |
RESULT: Payback time for your new Thermodynamic Solar Panel System is 4-5 yrs. After this time, you not only will be saving €946.25 per annum, but you will also have hot water 365 days of the year, 24 hrs a day for a fraction of the price.
Case Studies of solar panel running costs
Example of Thermodynamic Running Costs broken down:
- 390 watt motor / 1000 = 0.39 kwh
- €0.14 = unit of electricity
- 0.39 kwh x €0.14 = €0.056 + 13.5% vat = € 0.0619 per hour
- €0.0619 x 8 hours = €0.49 per day
- €0.49 x 365 = €180.74 per year
- Last updated on .