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Month: March 2022

How to Protect your Solar Panels from Lightning?

Lightning strikes are mostly classified as direct and indirect strikes.
Direct Strikes are severe but rare, it leads to melting of the panels and damage to the inverter, fuses, and cable. It induces high current into the system, thus causing overheating and damage to the system. 


An indirect strike occurs more often, it creates electromagnetic induction that generates high voltage into the solar system and house. The generated high voltage passes through the system wiring to the components, thus damaging the conductor, solar panels, inverter, and other components connected.

But don’t worry! We take steps to help avoid lightning damages to the PV system.
Risk analysis and protection against lightning must be done at the designing stage.

Two main solutions to protect against the lightning strike: 

Grounding Lightning arrestor

Grounding:
Grounding is one of the basic techniques used to divert the path of lightning from the component straight to the ground. For places with occasional lightning strikes, the grounding technique is enough to protect the PV system from lightning and surges (without adding any other protection equipment).


Good grounding is very necessary, even if we use lightning arrestors and surge protectors it will work effectively only with proper grounding.

For proper grounding one needs to follow the following points:

Check the resistivity of the ground: Electricity flow handling capacity. Interconnect all the PV panels, inverter, controller, and all the other components to the common ground along with the house grounding system to the common earthing point. We need to install one earth pit for the DC side (solar panels, DC distribution box) and one for the lightning arrestor and AC side (inverter, AC Distribution Box). For proper and effective grounding, the use of copper / Aluminium wire / GI strip is highly recommended. The wire/strip used should be free from sharp bends and twists and should be buried in a way such that most of the area comes in contact with moist soil.

ROOFWALKER’S REASONS TO GO SOLAR

It’s no secret: solar energy benefits businesses, organizations, and property owners in huge ways. Businesses all across the state, country, and world are taking advantage of everything a solar PV array has to offer. But when it comes time to make a decision about going solar, it helps to have the benefits laid out. That’s why we’re sharing the top ten reasons to go solar, to help you determine if a solar solution could benefit your business.

1. REDUCED OPERATING COSTS:
One of the most tangible and substantial reasons to go solar is the reduction of energy costs. The electricity a solar system produces offsets your electrical usage, significantly reducing or in some cases even eliminating your electric bill so you can spend money elsewhere, or save the difference. For more information on how this works, read our blog on how solar effects your electric bill.

2. GOOD RETURN ON INVESTMENT:

When a business considers any big financial investment, it is important that it has a large return, and a short payback period. Solar arrays typically have a payback period of 3 to 6 years, dependent on system size and financing solution utilized. After that payback, all financial benefits and savings contribute significantly and directly to your ROI.

3. ENVIRONMENTAL LEADERSHIP:

The demand for renewable energy is real and growing in our state and throughout the country. Customers, tenants, and prospective employees are increasingly weighing a property owner’s or company’s environmental policy and commitment to sustainability in their decision criteria. By going solar, businesses contribute to the expansion and adoption of carbon-cutting renewable energy technology, helping to build a more sustainable world.

4. ENERGY COST STABILITY:

Electricity costs have risen over 70% in the past 10 years and continue to do so in a volatile way – making it difficult to budget this line item year over year. With solar, you can accurately forecast the cost of your energy use for more than 25 years. Predictable energy rates mean a more predictable budget.

5. IMPROVED PROPERTY VALUES

Buildings with a solar PV array have a higher market value than the same buildings without, as well as better resale values for owners.*

 

6. REDUCED CARBON FOOTPRINT:

Solar energy is clean, renewable, and abundant. Unlike fossil fuels, solar energy does not generate harmful carbon emissions and other greenhouse gases that are known to contribute to global warming. By using solar electricity instead of electricity generated with fossil fuels, your business can reduce its’ carbon footprint and contribute to a culture of sustainability.

7. LIMITED MAINTENANCE:

While a solar array does require some maintenance and cleaning to operate at full efficiency, there is
virtually no day-to-day maintenance, making it an easy “tenant” for your business. An experienced solar developer can assist in maintaining a solar PV system to achieve maximum efficiency.

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