Solar Power Plant 5, 10, and 30 kW — Which One to Choose and How Much Does It Cost Turnkey?

Solar power plants have long ceased to be a luxury and have become a practical solution for homeowners and businesses. Ukraine is rapidly moving toward energy independence, and the sooner you start using solar energy to your advantage, the greater your benefits will be.

First, it's about saving money. Electricity tariffs continue to rise every year, making energy bills increasingly expensive. Solar panels help reduce costs or even eliminate dependence on grid electricity.

Second, it's an investment. By installing a solar power plant, you are not just saving money—you are investing in your own energy independence. On average, a solar power plant pays for itself in 4–6 years and lasts for more than 25 years.

And, of course, it's environmentally friendly. By using solar energy, you reduce pollution and contribute to the development of clean energy technologies.

Who Should Consider a 5, 10, or 30 kW Solar Power Plant?

The choice of solar power capacity depends on your needs and goals.

5 kW – an excellent option for a summer house, a small countryside home, or a private house with minimal electricity consumption. It is ideal for those who want to cut down on utility costs but are not yet ready for a large investment.
10 kW – a balanced choice for a family home or cottage where multiple people live and use high-powered appliances such as a boiler, air conditioner, water pump, and household electronics. This capacity is also suitable for small businesses, cafés, or retail shops.
30 kW – a powerful solution for businesses, farms, production facilities, or large residential complexes. It generates enough energy for autonomous business operations or profitable sales of surplus electricity to the grid.

Key Factors That Influence the Choice of Capacity

Before selecting a solar power plant, consider several crucial factors:

Electricity consumption – Analyze your electricity bills over the past few months to understand how much energy you need.
The possibility of selling surplus electricity – If you plan to profit from solar energy, installing a higher capacity system might be a good idea.
Available installation space – The greater the capacity, the more solar panels you will need, which means more space on your roof or property.
Budget – The higher the capacity, the greater the initial investment, but the long-term savings will also be more substantial.

Turnkey solar power station at an affordable price - is a step toward energy independence and freedom from utility tariffs. The most important thing is to choose the right option that fully meets your needs.

What Does a Solar Power Plant Consist Of?

A solar power plant is not just a set of panels on the roof. It is a complex system where every component plays a crucial role. Proper selection of equipment affects the system's lifespan, efficiency, and payback period. Let’s break down what makes up a modern solar power plant.

Solar Panels: Types, Efficiency, and Manufacturers

The core component of any solar system is its solar panels, which convert sunlight into electricity.

There are three main types of panels:

Monocrystalline – the most efficient and widely used option. They have a high efficiency rate (up to 22%) and work well even in low-light conditions.
Polycrystalline – a more budget-friendly alternative, but with lower efficiency (16–18%). They are a good option for regions with high solar radiation.
Thin-film – lightweight and flexible, but with a low efficiency rate (up to 14%). These are rarely used due to their lower performance.

There are many manufacturers on the market, but it’s best to choose trusted brands like AGENT, JSDSOLAR, Deye, Dyness, which offer reliable panels with warranties of up to 25 years.

Inverters: Grid-Tied, Hybrid, and Off-Grid

Solar panels generate direct current (DC), while homes and businesses use alternating current (AC). This is where an inverter comes in—it converts the generated electricity into a usable form.

Types of inverters:

Grid-Tied – work in conjunction with the central power grid, allowing users to sell excess electricity under the "green tariff" program.
Hybrid – can operate both with the grid and with batteries, ensuring energy autonomy during power outages.
Off-Grid – completely independent from the grid, using batteries to store energy. Ideal for remote locations and vacation homes.

Choosing the right inverter determines how efficiently your system will function.

Charge Controllers and Battery Storage

If your system includes batteries, you will need a charge controller—a device that manages battery charging, preventing overcharging and deep discharge.

Battery types include:

Gel and AGM batteries – affordable but have a shorter lifespan.
Lithium-ion batteries – the most durable and efficient, but also the most expensive.

If full energy autonomy is a priority, lithium-ion batteries are the best option.

Mounting Structures and Protection

To ensure the long lifespan of solar panels, they must be securely mounted. There are several mounting options:

Rooftop mounts – ideal for homes and commercial buildings.
Ground-mounted structures – suitable for large solar farms or areas where rooftop installation is not feasible.
Solar trackers – advanced systems that automatically adjust panel positioning to follow the sun, increasing energy output by 25–40%.

Additionally, protection systems are crucial—special fuses and surge protectors prevent damage from voltage fluctuations and lightning strikes.

Smart Monitoring: Real-Time Energy Tracking

Modern solar power plants come with monitoring systems that allow users to track system performance in real time. Through a mobile app, you can check:

Daily, weekly, and monthly energy production.
The system's current power output.
Inverter load and efficiency.
Battery charge status (if included in the system).

This helps identify potential issues quickly and optimize energy use.

Turnkey solar power station is not just a collection of equipment—it is a well-designed system where every detail matters. By choosing high-quality components, you ensure stable operation and long-term savings for years to come.

5 kW Solar Power Plant

Who Is It Suitable For?

A 5 kW solar power system is an excellent solution for a small private home, vacation house, or even a small business. It is ideal if you have a standard set of household appliances: a refrigerator, TV, washing machine, lighting, and a few additional electrical devices.

This option is particularly popular among those who want to reduce their electricity bills but are not yet ready for a major investment in solar energy.

If you own a countryside house that you only visit on weekends, the system can fully cover your energy needs, and any surplus electricity can be sent to the grid.

Average Electricity Generation

How much electricity can such a system produce? This depends on factors such as location, panel angle, and season. On average, you can expect the following figures:

Per day – approximately 20–25 kWh (can be higher on sunny days).
Per month – 600–750 kWh.
Per year – 7,000 to 9,000 kWh.

To put this into perspective: this is enough to fully power a small home or vacation house equipped with an electric stove, water heater, and air conditioner.

Saving on Bills or Selling Surplus Energy

You can use solar power exclusively for your own needs or connect to the grid and sell excess electricity.

How does it work?

During the day, solar panels generate electricity, which is used immediately to power your home.
If the system produces more energy than needed, the excess is automatically sent to the grid (if a bidirectional meter is installed).
In the evening, when there is no sunlight, you use energy from the grid.

With this setup, you can reduce your electricity bills by 80–90%, and if you participate in a feed-in tariff program, you can even earn additional income.

Estimated Turnkey Cost

The price of a 5 kW solar power plant depends on the quality of equipment, type of installation, and additional options.

A standard turnkey package typically includes:

10–12 solar panels (monocrystalline, 450–500 W each).
5 kW inverter.
Mounting structures and fasteners.
Cables, connectors, and protective components.
Installation and connection work.

Estimated turnkey price – from $4,500 to $6,500.

This is a one-time investment that will pay for itself within 4–6 years, and after that, the system will generate electricity for free.

If you own a small home or vacation property, this is the perfect option to eliminate high electricity bills and secure a stable source of energy for the next 25+ years.

10 kW Solar Power Plant

The Best Option for a Home with High Energy Consumption

If you have a spacious house, a large family, and household appliances running almost continuously, then a 10 kW solar power plant is the perfect solution for you.

This system can provide stable energy supply for a private home, cottage, or small office. It is particularly useful for those who rely on electric stoves, water heaters, air conditioners, pump stations, and other energy-intensive appliances.

Additionally, if your home is heated with electricity, a 10 kW solar plant can significantly reduce winter heating costs.

A Balance Between Autonomy and Grid Connectivity

A 10 kW system is a versatile solution that can operate in different modes:

Grid-Tied Mode – when surplus energy is sold to the grid, and any shortfall is compensated by drawing power from the central system.
Hybrid Mode – includes battery storage, allowing you to have backup power during outages.
Off-Grid Mode – if equipped with batteries, the system can completely replace grid electricity (ideal for remote homes and off-grid locations).

This setup allows you to optimize expenses, ensure independence from power outages, and even earn money by selling surplus electricity.

Payback Period and System Lifespan

Thanks to its higher capacity, a 10 kW solar power plant generates around 40–50 kWh per day, which adds up to 1,200–1,500 kWh per month on average.

In simple terms, this means you can:

✔ Fully cover your home’s energy consumption, including power-hungry appliances.
✔ Sell up to 50% of excess electricity to the grid and earn extra income.

The payback period depends on electricity rates, location, and how the system is used, but on average, it is 4–5 years. Considering that solar panels last over 25 years, and an inverter serves at least 10 years, this is a highly profitable investment.

How Much Does a Turnkey Installation Cost?

The price of a 10 kW solar power system depends on the configuration. A standard package includes:

20–22 monocrystalline solar panels (450–500 W each).
10 kW inverter.
Mounting structures and fasteners.
Cables, circuit breakers, and connectors.
Installation and commissioning work.

Average turnkey cost – from $8,000 to $12,000.

This option is the perfect balance between cost and performance. If you are looking for stability, savings, and income opportunities, a 10 kW solar power plant is the best choice.

30 kW Solar Power Plant

The Perfect Solution for Businesses, Production Facilities, and Large Farms

If you need a powerful solar system capable of supplying electricity not only to a private home but also to a business, farm, or small production facility, then a 30 kW solar power plant is the right choice.

It is a reliable solution for:

Restaurants, cafés, and hotels
Office and shopping centers
Small production facilities and workshops
Farms, greenhouses, and agricultural enterprises
Large residential complexes

This system has enough capacity to fully meet a business’s energy needs while significantly reducing electricity costs.

Energy Generation and Savings Potential

A 30 kW system generates 120–150 kWh per day, which translates to approximately 3,600–4,500 kWh per month.

What does this mean in practice?

✔ Complete energy supply for businesses without voltage fluctuations.
✔ The ability to operate autonomously during power outages.
✔ Maximum electricity savings (up to 80–90%).
✔ Additional income from selling surplus energy to the grid.

If connected to a feed-in tariff program, the system can generate passive income for every unused kilowatt-hour.

Selling Excess Energy via the "Green Tariff"

In Ukraine, there is a government support program for solar power plant owners. Under the "green tariff", you can sell excess electricity to the grid and receive stable payments for it.

How does it work?

During the day, the solar system generates more electricity than is needed.
The surplus is automatically transferred to the public grid.
At the end of the month, the energy company pays you for each kilowatt-hour supplied.

This is especially profitable for businesses that have unused roof or land space for panel installation.

Turnkey Project Cost

The total cost depends on the type of equipment, installation complexity, and additional features. A standard package includes:

60–70 monocrystalline solar panels (450–500 W each)
A 30 kW inverter
Mounting structures and installation hardware
Cables, circuit breakers, and connectors
Installation and commissioning services

Turnkey price – from $22,000 to $30,000.

Yes, the investment is significant, but with proper use, the system pays for itself in 3–5 years and then continues to operate for free for at least 20 more years.

If you are a business owner or want to make your facility fully energy-independent, a 30 kW solar power plant is a smart investment that can start generating profits in the very first year of operation.

How to Choose a Solar Power Plant?

Capacity Based on Energy Needs

Before purchasing a solar power plant, it is crucial to accurately determine the required capacity based on your actual needs.

Consider the following factors:

Average electricity consumption – analyze your electricity bills for the last 12 months to understand your usage patterns.
What appliances do you use? – If you have an electric stove, water heater, air conditioner, or underfloor heating, a minimum of 10 kW is recommended.
Do you plan to sell excess electricity to the grid? – If you want to benefit from a feed-in tariff, choosing a higher-capacity system makes sense.
What is your power supply situation? – If power outages occur frequently, a hybrid system with batteries is a better choice.

Example:

For a small home with 200–300 kWh monthly consumption, a 5 kW system is sufficient.
If you have a large family and high-power appliances, a 10 kW system is recommended.
For businesses and commercial facilities, 30 kW or more is the best option.

Financing Options: Loans, Installments, and Grants

A solar power plant is an investment that starts paying off from day one. However, if you cannot cover the full cost upfront, there are several financing options available.

Solar power plant loans – In Ukraine, some banks offer loans for renewable energy projects. Interest rates vary depending on the bank, but preferential programs are often available.
Installment plans – Many solar companies provide flexible payment options without large upfront costs.
Grants and government support – In certain regions, there are funding programs for businesses and individuals to install solar panels. It's worth checking with local authorities for available incentives.

It's essential to understand that a solar power plant is not just an expense—it is an investment that generates long-term savings and potential income.

How to Choose a Reliable Contractor?

The solar energy market is growing rapidly, and many companies offer installation services. However, not all contractors are equally reliable.

Key Factors to Consider When Choosing a Company

Experience and Reviews – How long has the company been on the market? What projects have they completed?
Equipment Quality – Does the company work with trusted brands? Are there warranties on solar panels and inverters?
Warranty and Service – Does the contractor provide a warranty on installation and ongoing maintenance?
Documentation and Permits – If you plan to connect to the grid under a feed-in tariff, ensure that the company handles all necessary paperwork.
Transparent Pricing – Always confirm whether the price includes installation, connection, cabling, inverters, and other necessary components.

Be cautious with suspiciously low prices—they often indicate cheap components or lack of warranty services.

Choose a reliable contractor, and your solar power plant will last over 25 years, providing free electricity for your home or business.

Answers to Popular Questions

Can a Solar Power Plant Be Connected Without Batteries?

Yes, it can. In fact, this is the most common setup. Grid-tied solar power plants operate without batteries, connecting directly to the grid. During the day, they power your home or business, and any excess electricity is fed into the grid, allowing you to earn money through a feed-in tariff.

However, if your area experiences frequent power outages, it is better to consider a hybrid system with batteries. This allows you to store surplus energy for use at night or during low sunlight periods.

The choice depends on your goals:

If you want to save money and sell excess energy, batteries are not necessary.
If energy independence is a priority, it is better to include a battery storage system.

How Does Weather Affect Solar Panel Efficiency?

Solar panels continue to generate electricity even in cloudy weather, but their efficiency decreases. The most important factor is how much sunlight reaches the panel surface.

Key weather factors affecting performance:

Sunny days – maximum energy generation.
Cloudy weather – efficiency may drop by 20–50%, depending on cloud density.
Rain or snow – panels still work, but at a lower capacity.
Temperature – contrary to popular belief, solar panels perform better in cool sunny weather than in extreme heat. High temperatures can slightly reduce efficiency.

To minimize energy losses, it is crucial to design the system properly—considering the tilt angle, panel positioning, and potential shading.

What Permits Are Required for Installation?

For a private home using solar power for self-consumption only, no permits are needed—you can simply install the system and start using it.

However, if you plan to connect the system to the grid and sell excess electricity, you will need to:

Sign a contract with the energy provider.
Install a bidirectional meter to track both generated and consumed electricity.
Obtain technical conditions and approval for grid connection.

For businesses or commercial properties, additional documentation (such as installation permits and local authority approvals) may be required.

When choosing a turnkey installation, a reliable solar provider will handle all the necessary paperwork, making the process easier and faster.

Summary of Capacity Selection

Choosing the right solar power plant depends on your needs and budget.

5 kW – an excellent choice for a small home, vacation house, or private residence with moderate electricity consumption.
10 kW – the best option for larger homes, families with high energy demand, and businesses looking to reduce costs.
30 kW – a high-capacity system ideal for businesses, production facilities, commercial properties, and large farms where autonomy and stable energy supply are crucial.

It’s important to consider not only your current energy consumption but also future growth—if you plan to expand production, increase energy use, or sell excess electricity, it's best to choose a system with extra capacity from the start.

Why Choose a Turnkey Installation?

Installing a solar power plant is a complex process that requires technical expertise, precise calculations, and proper documentation. If you try to do it on your own, you may face multiple issues, from connection errors to bureaucratic hurdles when registering for a feed-in tariff.

A turnkey installation takes care of all these concerns:

Selection of equipment based on your specific needs.
Professional installation following industry standards.
System connection and configuration for optimal performance.
Assistance with paperwork for selling electricity to the grid.

This not only provides convenience but also guarantees the reliable operation of your solar plant for many years to come.

How to Request a Free Consultation?

If you want to determine which solar power plant is best for your needs, request a cost estimate, or get detailed consultation, simply contact us.

Our experts will help you choose the optimal solution, calculate your savings, and explain how to maximize your return on investment. You will receive a clear plan and a personalized calculation to help you make an informed decision.

You can get the exact cost of your project by contacting our manager (click this link)

Solar power plant 5, 10, and 30 kW: which one to choose and what is the turnkey price?

Introduction

Why Is Solar Energy a Profitable Investment?