3kw Solar Power System – Estimation of Costs and Benefits
The domestic standard 3kw solar power system usually includes twelve solar power panels installed on to some south facing roof. It ought to generate around 2400 kwh each year based upon it’s physical location.
A 3 bed house uses around 3000 kwh each year of electricity. So although you will probably generate three quarters from the energy all your family members requires, you still have to depend around the National Grid throughout the nights so when energy generation is intermittent because of poor climate conditions. You’ll also have occasions when more energy is needed than being generated like when utilizing a dishwasher, washer or electric oven.
Marketing to the nation’s Grid any energy produced although not used.
a). No allowance has been created for the price of upkeep of the machine. The believed lifespan is twenty five years however no allowance has been created for that loss of performance because the photovoltaic system ages.
b). Benefits may decrease or increase based upon the fluctuation of the local electricity suppliers prices. A rise in the mains electricity cost means the advantages of getting solar power panels increases. But a decrease in electricity prices means your solar benefits decrease.
c). A 3kw solar electricity system requires roughly 21 square metres of roof space. This technique should fit easily on the top from the average three bed house. You should think about whether the look of the solar power panels may modify the property’s value in case of selling your building within the years ahead.
3kw Solar Electricity PV (Photovoltaic) System Cost Analysis
Believed price of System $6000 (the price of systems have reduced considerably lately meaning the payback period has shortened)
3kw system creating roughly 2400 kwh of electricity per year = $336 (calculated at 14c per kwh – believed worth of best local electricity company tariff)
Enter Tariff (Government Benefit) @ 16c per kwh generated = $384 (inflation may reduce the need for this benefit within the lengthy term unless of course it might be index linked)
Exported electricity not used (presently @ 4c per kwh)
Total Annual Benefit $720
Payback Period: 8 years