FAQ - Solar Power Systems
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The warranty period depends on the brands used, generally they are as follows:
Solar panels: 10 years
Inverters: 5 years
Solar charge controllers: 5 years
Batteries: 2 years
To read more about the expected lifetime, click here.
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Smaller DC-coupled systems without inverter can only power DC-appliances. Though most appliances use AC-power, there is a growing amount of DC-appliances available in the Tanzanian market. Think particularly about DC-LED Bulbs, DC-Fans and DC-TV’s.
A system with an inverter can also power AC-appliances. Pretty much all appliances can be connected to a solar power system, however, you should pay attention to appliances providing heat. Electric boilers, heaters, stoves and ovens require a lot of power for a long time. Normally it is more economical to power these appliances using solar water heaters or gas.
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As long as the solar panels are mounted with a pitch of 10-15 degrees, most of the dirt should be washed of by the rain. When the solar modules are particularly dirty, and no rain is expected due to a dry season, it can be smart to clean the solar panels though. Cleaning the solar panels should be done with a soft cloth (to protect the coating) and ideally demineralized water.
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FAQ - Solar Power Systems, the Financials
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Whether you should choose to buy or to lease a solar power system depends on your personal situation.
Buying a solar power system will be cheaper in the long run, however, requires you to have the total amount upfront.
Leasing your solar power system will be more expensive in the long run. As you are paying per kWh / per month, however, the company which is leasing you the system has a clear incentive to make sure that the system is performing. Additionally, leasing a system could provide you with the financial space to make investments in areas which yield a higher return. Leasing a system does require you to be creditworthy though.
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Aside from your regular bank there are companies specialized in providing loans for solar power systems. Contact us in case you are interested to be connected.
Most solar home systems offered in Ghana automatically come with a lease. After paying a deposit the system is paid back over time using mobile money.
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