End-to-end Solar Construction Services
We provide fully customized solar energy systems designed to meet the specific needs of your property—whether you’re powering а home or a commercial facility. Every project begins with a comprehensive site inspection to evaluate the environment, energy goals, and technical requirements. This allows us to design a high-performance system that maximizes efficiency and delivers long-term value.
Our team manages the entire process from start to finish. We handle technical planning and prepare detailed system drawings to ensure accuracy and compliance. We carefully select top-tier equipment, coordinate logistics, and oversee transportation, including the use of specialized machinery where needed. Installation is carried out by experienced professionals who work with precision and care.
Residential PV systems
In today’s world, energy efficiency and independence are essential for every household. That’s why at RES Design Group, we offer modern residential photovoltaic systems that combine innovative technology, professional installation, and comprehensive support every step of the way. Our solutions are perfect for those looking to reduce their electricity costs, increase the value of their property, and invest in clean, sustainable solar energy.
What does the installation of a photovoltaic system include?
At RES Design Group, we offer end-to-end services that cover every stage of your photovoltaic system’s development — from the initial consultation to system commissioning and ongoing maintenance.
Each project is custom-designed to meet the specific characteristics of your roof, geographic location, and unique energy requirements. We utilize high-efficiency N-type monocrystalline solar panels and premium inverters from globally recognized manufacturers, ensuring maximum performance, durability, and return on investment.
Our experienced team guarantees expert installation in compliance with all technical and safety standards. We also handle the complete documentation process, including system registration with the relevant authorities. Depending on your needs, we provide solutions for both grid-connected and off-grid systems — ideal for urban homes as well as remote or off-grid properties.
Different system types
We provide a range of solutions including grid-connected, hybrid, and fully autonomous photovoltaic systems.
Clients have the flexibility to incorporate energy storage batteries, participate in feed-in tariff programs by selling surplus electricity back to the grid, or establish a fully independent energy infrastructure. Each system is meticulously designed to align with the specific energy consumption profile and budget of the household, accompanied by transparent and detailed return on investment analyses.
Financing, Programs, and Subsidies
RES Design Group supports its clients in applying for national programs and European subsidies. Additionally, we offer various financing options and installment plans that make solar systems accessible to a broader range of households.
Our team of specialists manages the entire administrative process, relieving clients from unnecessary bureaucracy and ensuring a smooth, hassle-free experience.
Who is this service suitable for?
This service is ideal for owners of houses, villas, rural properties, or remote sites seeking solutions to reduce energy costs and achieve energy independence. It is increasingly chosen by those who wish to enhance their property’s value or create a sustainable and environmentally friendly living environment.
Engineering a brighter future
Commercial PV systems
Energy security and cost optimization are among the top priorities for every modern business. An increasing number of Bulgarian companies are turning to solar systems as a solution to achieve long-term sustainability, energy independence, and financial stability.
RES Design Group provides comprehensive services for the design and installation of photovoltaic systems for commercial, industrial, and administrative buildings, regardless of size or sector.
What does the installation of a photovoltaic system include?
From system design tailored to the specific needs of the facility, to delivery, installation, legalization, and grid connection — we take care of every detail. Our approach combines high technical expertise with proven results.
We utilize high-efficiency solar panels with long service life, inverters optimized for load performance, and controllers that ensure maximum output even under variable weather conditions.
Each system is calculated based on actual electricity consumption and site-specific conditions — whether it involves rooftop installations, ground-mounted setups, or hybrid configurations. Solutions are designed both for direct consumption and for the sale of surplus energy.
Benefits of Solar Systems for Businesses
A photovoltaic system not only reduces monthly electricity expenses but also creates tangible competitive value. The investment typically pays off within 4 to 6 years, after which it generates pure profit. Additionally, having a solar installation significantly enhances the company’s reputation, particularly in the context of ESG policies, green transformation, and sustainable development.
Solar energy is a fully predictable resource, enabling precise planning and control of production costs. For businesses with high energy consumption—such as manufacturing plants, warehouses, retail outlets, or logistics centers—the benefits are even more pronounced.
We also offer battery storage solutions, ensuring uninterrupted power supply and independence from grid outages.
Financing, Programs, and Subsidies
RES Design Group supports its clients in applying for national programs and European subsidies. Additionally, we offer various financing options and installment plans that make solar systems accessible to a broader range of households.
Our team of specialists manages the entire administrative process, relieving clients from unnecessary bureaucracy and ensuring a smooth, hassle-free experience.
Manufacturers we work with
Do you have anyquestions?
Then contact us.
We will be happy to help you and inform you in a personal conversation.
Frequently Asked Questions
Can PV design software help predict long-term system degradation?
Yes, advanced PV design software can estimate long-term system performance by factoring in degradation rates of solar panels over time. These tools allow you to model how environmental conditions, such as UV exposure and temperature fluctuations, will impact panel efficiency over the system’s lifetime. By incorporating degradation into performance simulations, designers can more accurately predict energy output and financial returns over 20-30 years.
How does PV design software handle complex terrains or irregular roof shapes?
Advanced PV design software can accommodate complex terrains and irregular roof shapes by using sophisticated 3D modeling tools. These tools allow designers to input detailed site data, including slope, orientation, and obstacles such as chimneys or vents. The software can then generate optimal panel layouts that maximize energy generation while accounting for shading, tilt angles, and other site-specific constraints. This capability ensures that even challenging environments can be effectively utilized for solar installations.
Does RES Design Group offer support after project completion?
Yes, RES Design Group offers ongoing support after project completion. We provide maintenance, performance monitoring, and optimization services to ensure your solar installation continues to operate efficiently and effectively.