How do solar panels work?
Ans: Solar panels contain photovoltaic cells that convert sunlight into electricity through the photovoltaic effect. When sunlight hits the solar cells, it excites electrons, creating a flow of electricity.
What are the benefits of solar energy?
Ans: Solar energy is renewable, abundant, and clean, reducing greenhouse gas emissions and dependence on fossil fuels. It can lower electricity bills, increase energy independence, add property value and create jobs in the renewable energy sector.
Is my home or business suitable for solar panels?
Ans: Most homes and businesses with access to sunlight can benefit from solar panels. Factors such as roof orientation, shading, and structural integrity will determine the suitability of solar installations.
What size solar system do I need for my energy needs?
Ans: The size of the solar system depends on your energy consumption, location, available roof space, and budget. A solar installer can conduct a site assessment to determine the appropriate system size.
How much money can I save with solar energy?
Ans: Savings from solar energy depend on various factors, including electricity rates, system size, incentives, and financing options. On average, homeowners can save thousands of dollars over the lifetime of a solar system.
Are there any government incentives or rebates for installing solar?
Ans: Yes, many governments including here in Tanzania offer incentives to promote solar energy adoption. For example, nearly all solar products are VAT & duty tax exempted.
What is net metering, and how does it work?
Ans: Net metering allows solar system owners to receive credit for excess electricity produced by their system and exported to the grid. They can use this credit to offset electricity consumption when their solar panels are not producing enough power.
What maintenance is required for solar panels?
Ans: Solar panels require minimal maintenance, typically limited to occasional cleaning to remove dust and debris. Professional inspections may be recommended every few years to ensure optimal performance.
Can I install solar panels on a flat roof?
Ans: Yes, solar panels can be installed on flat roofs using mounting systems designed for flat surfaces. Tilted racks or ballasted systems are commonly used to angle the panels for maximum sunlight exposure.
What happens to solar energy production on cloudy days?
Ans: Solar panels can still generate electricity on cloudy days, although at reduced efficiency. They continue to produce power as long as there is daylight, even if sunlight is partially blocked by clouds.
Can I go completely off-grid with solar energy?
Ans: Yes, it is possible to go off-grid with solar energy, but it requires a robust solar power system combined with substantial battery storage to ensure you have enough energy supply during periods of low sunlight. Off-grid systems are ideal for remote areas where grid access is unavailable or unreliable, though they require careful planning to meet all energy needs independently.
How does a solar power system integrate with existing grid electricity?
Ans: A grid-tied solar power system allows you to use both solar energy and grid electricity. During the day, your solar panels generate power, which can be used immediately or sent back to the grid if excess is produced. At night or during cloudy days, when solar production is low, you can draw power from the grid as needed. This integration ensures you always have a reliable energy source.
How much does a solar power system cost?
Ans: The cost of a solar power system varies based on factors like system size, location, and specific energy needs.