
Local power grid and nanogrid infrastructure
Construction of autonomous (Off-grid) and grid-connected private energy systems. A smart grid combines local production, smart home, and EV charging into a single, efficient ecosystem.
- Integration of solar power plants and batteries (hybrid systems)
- Implementation of dynamic load management (DLM)
- Design and construction of local network (Nanogrid) architecture
How it works: The system monitors the total current consumption at the building input in real time. It doesn't just passively watch, but actively controls various independent system elements. For example, if the sun is shining, it diverts power to batteries or water heating. If a load peak is approaching and exchange electricity is expensive, it temporarily disconnects less important consumers.
Customer benefit: This means the company can safely reduce the input circuit breaker rating in the Distribution Network, saving thousands of euros a year on fixed fees, while maintaining all production processes and not restricting business.

Smart building automation
Integration of centralized control systems into the smart grid. Automation of engineering communications for building energy efficiency, for example, installing smart Shelly relays for boiler control and temperature regulation.
- Automation of lighting, climate, and water heating
- Installation and integration of KNX and Shelly smart devices
- Configuration of smart systems according to exchange prices (Demand Response)
How it works: Smart relays and controllers (e.g., Shelly) read real-time Nord Pool exchange prices and turn on water heating or climate control only when electricity is cheapest.
Customer benefit: Complete automation and comfort, while reducing local equipment electricity consumption costs by up to 40%, without the need to manually flip switches every day.

Construction of commercial and private EV charging points
Safe installation of alternating current (AC) and direct current (DC) charging stations for homes and company parking lots. System integration into the smart grid, providing smart power distribution.
- Electrical installation of AC and DC charging equipment for offices and private homes
- Integration of dynamic load management (DLM) systems
- Synchronization of charging stations with the local power grid
How it works: An electric car is an extremely large, long-term load (11 kW or 22 kW). If production equipment or a heat pump is turned on in the building and at the same time someone plugs in a car to charge, the main circuit breaker trips instantly. A DLM charging device reads the building's free reserve power at the input in milliseconds. If the building suddenly draws a lot of power, the DLM "cuts" the car's charging speed to a minimum. When the building's consumption drops (e.g., at night), full power is restored to the car.
Customer benefit: This allows the customer to install a powerful charger without needing to request and pay for an expensive connection power increase from the Distribution Network (which would mean new cables, excavation, and approval projects).

Industrial and private electrical installation
PROI performs full-cycle electrical installation, guaranteeing precision, safety, and load resistance of electrical systems.
- Construction of cable networks and load-bearing structures
- Assembly and wiring of distribution cabinets
- Electrotechnical measurements and documentation according to fire safety regulations
How it works: You hand over the object or project to us, and we take responsibility for the full cycle – from laying the first cable to wiring the distribution cabinet and official handover.
Customer benefit: Clear responsibility in one set of hands. No hidden costs, a secure warranty, and execution that will pass any building authority or fire safety inspection.

Low-voltage and data network infrastructure
Precise construction of data and optical networks for reliable operation of IT, control, and security systems. The installation of specific security systems is carried out only in cooperation with certified partners.
- Structured cabling systems (SCS) and fiber optics
- Video surveillance and access control networks (in cooperation with certified partners)
- Construction of cable networks for fire safety and public address systems (in cooperation with certified partners)
How it works: We build all necessary cable and data infrastructure to the highest standards, while the handover and certification of sensitive security systems are performed by our licensed partners.
Customer benefit: Certified and legally compliant IT and security system construction, taking the burden of bureaucracy and commissioning off your shoulders.

System diagnostics and repair
PROI performs technical audits and measurements of existing electrical systems. Root cause analysis of faults and development of safe, long-term solutions.
- Emergency call-outs
- Technical inspection of electrical systems
- Mapping and marking of unknown cable networks
- Elimination of fault causes
How it works: Rapid response to emergency call-outs or planned audits for chronic system errors. We do not treat symptoms (for example, simply replacing a tripped circuit breaker), but diagnose and eliminate the root cause of the short circuit or overload.
Customer benefit: The chain of "eternal repairs" is broken and safety is restored at the facility. You pay for a truly solved problem, not for the hours spent by the technician.
Planned works and projects
PROI does not offer "approximate prices" or "base rates". A precise and binding price offer is always prepared for each project to guarantee transparency.
- Initial remote assessment (Free): Send us your property plan, photos, or description via email or WhatsApp, and we will prepare an initial cost concept.
- Technical inspection and on-site estimation: To develop a precise technical solution and a binding estimate, we perform an on-site inspection. The inspection fee starts from 50 EUR (depending on distance and specifics). This fee is fully deducted from the final project invoice if we conclude an agreement for the execution of works.
- For transactions up to 1000 EUR, execution takes place with a free-form price offer, agreeing to PROI general terms. For larger transactions, a detailed estimate is prepared and a mutually signed contract is concluded.
Emergency call-outs and fault detection
Applies to urgent damage prevention and diagnostic works that need to be performed immediately (without preparing an estimate in advance).
Diagnostic call-out (includes travel expenses and the first working hour on site)
- Up to 20 km radius from the base in Aizpute 50 EUR
- Up to 50 km radius (incl. Liepaja, Kuldiga, Saldus, Grobina) 75 EUR
- Over 50 km radius By agreement
A +50% coefficient is applied to the call-out fee for evening (after 17:00), night, and weekend call-outs.
Continuation of work and materials
- If repairing the damage requires additional time beyond the first hour, the technician agrees on the scope and costs of further work on site before continuing.
- The call-out and labor fee does not include material costs. Materials are calculated according to actual consumption.
* All stated prices are exclusive of VAT (21%).
Work at PROI
The daily routine at PROI is complex systems engineering and top-quality electrical installation. It is an environment where precisely built physical infrastructure goes hand in hand with smart home algorithms and local power grids.
Common goal: PROI integrates systems and works, creating a unified, intelligent, and safe result.
Technical independence: The work requires the ability to read diagrams, understand equipment operation, and independently diagnose problems within one's area of responsibility.
Dynamic environment: Working with Smart Grid and IoT solutions requires continuous learning. Every day, PROI tests, installs, and services the latest industry technologies.
We work all over Latvia:
Aizpute, Liepaja, Kuldiga, Riga, Ventspils, Talsi, Pavilosta, Grobina, Priekule, Saldus, Tukums, Jelgava, Jurmala, Bauska, Dobele, Ogre, Salaspils, Sigulda, Cesis, Valmiera, Smiltene, Limbazi, Aizkraukle, Jekabpils, Livani, Madona, Gulbene, Aluksne, Balvi, Rezekne, Ludza, Preili, Kraslava, Daugavpils and the surroundings of these cities.
PROI SIA © 2026
Electrical installation services and smart technologies
Building safe infrastructure and energy-efficient solutions in both private and industrial sectors.
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