Mechanical · Energy and thermal · Final year project

Tidal Energy Sea Wave Power Generator With Solar

A buoy that generates electricity from sea waves and sunlight. Wave motion drives a rack and pinion connected to an alternator, and solar panels add to the output.

Components & cost

What is the Tidal Energy Sea Wave Power Generator With Solar project?

A buoy that generates electricity from sea waves and sunlight. Wave motion drives a rack and pinion connected to an alternator, and solar panels add to the output.

Key facts

Type
Final year project · Intermediate
Suitable for
Diploma capstone and B.E / B.Tech final year
Build time
4 to 6 weeks
Estimated component cost
₹7,300 – ₹10,700
Guidance from
₹9,999 (Hardware / IoT Final Year)

How the Tidal Energy Sea Wave Power Generator With Solar works

  1. The mild steel frame and fabrication forms the base that carries every other part, so it is designed first from the load and size of the machine.
  2. The Solar panel converts sunlight into electricity to power or charge the system.
  3. Motion is transmitted through shafts and pulleys and V-belt, which set the speed, torque and direction at the working end.

Block diagram

Components list and cost

Typical prices from Indian online stores and electronics markets (Lamington Road, Budhwar Peth, SP Road). Buy from one store where you can to save on shipping.

ComponentQtyWhat it doesApprox. cost
Solar panel (10–20 W)1Converts sunlight into electricity to power or charge the system.₹900
Charge controller module1Charges the battery safely and stops overcharging.₹250
Rechargeable battery (12 V 1.3–7 Ah)1Stores energy and supplies power when mains is absent.₹650
Shafts (machined)1Transmit rotation and torque.₹400
Pulleys and V-belt1Transmit rotation between shafts.₹350
Mild steel frame and fabrication1Forms the main structure that holds all parts.₹2,500
Welding, cutting and machining labour1Needed for this type of build.₹2,200
Mounts, screws, nuts and small hardware1Enclosure, mounts and fasteners.₹300
Paint, finishing and workshop consumables1Project overhead₹600
Transport of material1Project overhead₹400
Estimated totalVaries with brand, quality and city₹7,300 – ₹10,700

Prices are estimates for budgeting. We confirm the bill of materials when your design is frozen, and components are charged at actual cost with bills.

How much does this project cost?

OptionWhat you getCost
Components onlyYou buy the parts and build it yourself₹7,300 – ₹10,700
Hardware / IoT Final YearWorking model or guided build, Circuit diagram and bill of materials, Firmware / code with explanationfrom ₹9,999 + components
Capstone Project (CPE)Working project or model, Black book in MSBTE format, Step-by-step explanation₹9,999 + components
Diploma ITR100% working source code, Project report PDF, PPT₹1,999 + components

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Download the project brief (PDF)

Summary, working, components and cost and viva questions on one branded PDF to show your guide or team. To get it developed, contact us on WhatsApp.

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What you submit with this project

  • Working model with circuit diagram and program code
  • Project report or black book in your university's chapter order (block diagram, circuit, calculations, results)
  • Presentation for the review and final viva
  • Synopsis for topic approval, if your college asks for one

Mechanical viva questions on this project

What is the aim of the Tidal Energy Sea Wave Power Generator With Solar project?

A buoy that generates electricity from sea waves and sunlight. Wave motion drives a rack and pinion connected to an alternator, and solar panels add to the output.

Explain the working of your project in short.

The mild steel frame and fabrication forms the base that carries every other part, so it is designed first from the load and size of the machine. The Solar panel converts sunlight into electricity to power or charge the system. Motion is transmitted through shafts and pulleys and V-belt, which set the speed, torque and direction at the working end.

What is the efficiency of a typical solar panel?

Commercial polycrystalline panels convert about 15–17% and monocrystalline about 18–22% of sunlight into electricity. Output depends on sunlight, angle and temperature.

Why is a charge controller needed?

It regulates the charging voltage and current, cuts off when the battery is full and prevents deep discharge, which protects battery life.

How do you calculate battery backup time?

Backup time (hours) ≈ battery capacity (Ah) × voltage × 0.8 efficiency ÷ load power (W). For example, 12 V 7 Ah at 20 W gives about 3.3 hours.

How is a shaft diameter selected?

From the torque and bending moment it carries: d³ = 16 T ÷ (π × allowable shear stress) for pure torsion, with a factor of safety.

What is the velocity ratio of a belt drive?

N1 × D1 = N2 × D2, so the speed ratio is the inverse of the pulley diameter ratio (ignoring slip).

Which material did you select for the main parts and why?

Mild steel (MS) is used for the frame because it is strong, cheap, easy to cut and weld and available everywhere. Shafts are made of EN8 or bright mild steel for strength, and parts that do not carry load can be aluminium or acrylic to reduce weight.

What factor of safety did you take in your design?

A factor of safety of 2 to 3 is taken for static parts and 3 to 5 for parts under shock or fatigue loading. Allowable stress = yield strength ÷ factor of safety, and each part is checked against it.

How did you estimate the cost of the project?

The cost is the sum of raw material, bought-out parts, machining or fabrication and overheads. Our estimate for this model is about ₹7,300 to ₹10,700, depending on size, material and the workshop rates in your city.

Which manufacturing processes were used?

Cutting and grinding of sections, arc or MIG welding of the frame, drilling for mounting holes, turning of the shafts and fitting of bearings and the drive, followed by assembly, alignment and painting.

Is your system open-loop or closed-loop?

Mainly open-loop: the controller runs the actuators for a set time or number of steps. Adding a sensor for feedback would make it closed-loop and more accurate.

Academic use: Project Buddyy offers mentoring, guidance and reference material for learning. You stay responsible for following your institution's academic integrity rules and for understanding everything you submit.

Want to build Tidal Energy Sea Wave Power Generator With Solar?

Send your college, deadline and team size. We confirm the scope, cost and what you will submit.