Microtek - Explained: The Difference Between Solar PV Modules and Solar Thermal System

Explained: The Difference Between Solar PV Modules and Solar Thermal Systems for Homes.

These days, many individuals are utilising solar energy at their residences. It is clean, free, and saves money. However, when it comes to this sort of energy, you will encounter two forms of it, which are Solar Thermal and Solar PV. These two products are not identical, even though sometimes these terms are used interchangeably. They work differently and do different jobs. But what are the major differences? Let us find out from this blog.

Solar PV Modules: Brief Description

Solar PV (photovoltaic) modules have silicon cells. These cells absorb sunlight. They allow electrons to flow. This flow makes direct current electricity. An inverter changes DC into the alternating current you use at home. The Solar PV Modules have some essential parts that you need to be well aware of:

PV Panels: Capture sunlight and make DC power.
Inverter or PCU: It easily transforms direct current to alternating current.
Mounting Structure: Holds panels on your roof at the right angle.
Wiring & Protection: This consists of cabling, fuses, and safety switches.
Grid Connection (Optional): Lets you send extra power back to the grid.

Solar Thermal Systems: A Helpful Definition

These solar-based systems utilise the daylight to heat the fluid. The fluid may be water or a heat transfer liquid. The hot fluid goes into a tank. You draw hot water for baths, washing, or heating. No electricity is made; you get heat directly.

Main Types of Solar Thermal Collectors

Flat Plate Collectors: A flat panel with pipes and insulation. It heats water directly.
Evacuated Tube Collectors: Glass tubes with vacuum insulation. They absorb a lot more heat, even during the cold weather.

Essential Components of a Thermal System

The thermal system also has some unique and crucial components, which are listed below:

Collector Panels or Tubes: Capture heat from the sun.
Storage Tank: Stores all the heated water.
Pump & Controller: Circulates the fluid and also regulates the flow.
Heat Exchanger (if utilised): Transfers the heat between fluids without integrating them.

Solar PV and Solar Thermal: The Primary Distinction

The thermal and PV solar panels are an excellent choice. However, there are some essential differences:

Energy Output Type

PV Modules: Generate electricity so that you can use it for all sorts of appliances.
Thermal Systems: It produces warm water for heating up a space, for washing and bathing.

Installation and Space

PV Modules: Needs a clear roof area facing south (in India). They function on both flat and tilted roofs.
Thermal Systems: Need a sturdy mounting for collectors, often inclined at 30° to 45°. They require space for the depository tank.

Maintenance Needs

PV Modules: Mostly cleaning panels and checking wiring once or twice a year.
Thermal Systems: Need more checks—pump service, tank cleaning, antifreeze checks, and tube inspections.

Costs and Savings

PV Systems: Higher upfront cost but free electricity for 20+ years. Expect a payment in 4 to 6 years.
Thermal Systems: Lower cost than PV. You save on gas or electric water heating. You can expect a payback in 3 to 5 years.

Choosing the Right System for Your Home

When you have decided to install solar panels for home, you should follow these steps to get the best ones:

Consider Your Energy Needs

Electricity Use: If you wish to cut down the electric bills, using the Solar PV ones will be a perfect option.
Hot Water Demand: If you just require warm water to wash and shower, the thermal system will be more than enough.

Climate and Location

Sunny All Year: PV works well almost anywhere in India.
Cold or Cloudy Days: Evacuated tubes in thermal systems trap more heat.

Roof Condition and Space

Shaded Roof: PV output drops if panels get shaded. Thermal systems also lose efficiency if shaded.
Available Area: PV needs about 1.7 m² per 300 W module. Thermal collectors need roughly 2 m² for every person when it comes to hot water.

Reliable Products and Services for Solar PV

Companies, such as Microtek, offer top-tier PV solutions. Here are some of the products that are worth opting for:

Grid-Tied Solar Solutions

Net Metering: Provides additional clean energy back and helps you get credits.
Pure Sine Wave Inverter: These inverters have a reliable and clean AC output.
Monitoring App: Make sure to inspect the savings and production on the phone.

Solar Power Conditioning Units (SPCU)

MPPT Technology: Tracks the best power point to get maximum output.
Battery Backup Option: Store power in batteries for night use.
Surge and Spike Protection: Keeps your inverter and appliances safe.

Professional Services

Free Site Survey: Experts measure your roof, sky exposure, and energy needs.
Custom System Design: Tailored module layout and inverter sizing.
Certified Installation: Skilled teams fit panels and wire the system.
After-Sales Support: Periodic supervision inspections and quick repairs.

Conclusion

Solar PV and solar thermal systems have their own set of benefits. PV gives you electricity for all appliances. Thermal gives you free hot water. Your pick relies on your power requirements, roof area, weather, and even the funding. For clean power, Microtek’s products deliver reliable, high-efficiency performance. Their professional site survey, custom design, and certified installation services make going solar easy. Trust Microtek to light your home and power your future with the clean energy of the sun.