What RTR Energía does

RTR Energía S.L. is a Spanish manufacturer of electrical power quality equipment, founded in 1979 and headquartered in Pinto, Madrid. The company designs and produces low-voltage and medium-voltage capacitors, fixed and automatic capacitor banks, harmonic filters (active, passive, and SVG static var generators), detuned and filtering reactors, transformers, switchgear, and metal enclosures. Its core technology is dry-type self-healing metallized polypropylene film capacitor construction, complemented by the patented DWCAP internal windings displacement system for three-phase capacitors and a proprietary UL 94 V0 self-extinguishing polyurethane resin. The company holds certifications across IEC 60831-1/2, IEC 60871-1/2, IEC 61071, ISO 9001, ISO 14001, UL 94, AENOR, and CE, supporting qualification for utility and industrial tenders across multiple jurisdictions.

The company operates a B2B, sales-led go-to-market model through a direct technical-commercial team based in Spain, serving utilities, industrial customers (manufacturing, metallurgy, mining, automotive), and renewable energy operators across at least nine countries including Spain, Portugal, Russia, China, Korea, Thailand, Turkey, Mexico, and Djibouti. Pricing is quote-based and customized to project specifications for power, voltage, frequency, and auxiliary equipment. Revenue is generated primarily through hardware sales of capacitor systems and turnkey capacitor banks, with reference projects spanning small industrial installations (2.54 MVAR) to large utility and solar PV deployments (60 MVAR).

In June 2025, RTR Energía was acquired by Arteche Group, a strategic operating company in the energy sector, to accelerate international growth and expand technological capabilities while preserving the RTR product portfolio and operational presence in Pinto. The acquisition positions RTR to leverage Arteche's global network reliability business for further geographic and product-line expansion.

Name

RTR Energía

Legal name

RTR Energía S.L.

Website

https://rtrenergia.es

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

51–100 employees

Short description

RTR Energía is a Spanish manufacturer founded in 1979 that designs and produces capacitors, capacitor banks, harmonic filters, and reactors for power factor correction and power quality. It serves utilities, industrial operators, and renewable energy projects across nine countries, and was acquired by Arteche Group in June 2025.

Ownership category

akta.pro rank

Product category

Power Quality Equipment / Electrical Capacitors

NAICS

Switchgear and Switchboard Apparatus Manufacturing (335313), Power, Distribution, and Specialty Transformer Manufacturing (335311), Electric Power Transmission, Control, and Distribution (22112), Relay and Industrial Control Manufacturing (335314)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Electronic Coils, Transformers & Other Inductors (3677), Switchgear & Switchboard Apparatus (3613)

akta.pro primary industry

Reactive Power & Power Quality Equipment (Capacitor Banks, Reactors, STATCOM/SVC, Harmonic Filters) (IMAGAAAG)

akta.pro secondary industries

Power Electronics for Renewable & Grid-Tied Applications (Solar inverters, wind converters, grid-tie interfaces) (IMAGADAJ), High-Voltage Electrical Systems (Switchgear, Transformers, Protection & Control) (EUAEAFAA)

Keywords

• Power factor correction
• Capacitor manufacturing
• Harmonic filtering equipment
• Reactive power compensation
• Power quality solutions

Headquarters

HQ city

Pinto

HQ country

Spain

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Capacitor Manufacturing and Sales: RTR Energía generates revenue through the design, manufacture, and distribution of capacitors and power factor correction systems including LV capacitors, MV capacitors, capacitor banks, harmonic filters, and related electrical equipment.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

RTR Energía designs, manufactures, and distributes electrical power quality equipment, with a primary focus on capacitors and complete capacitor bank systems for power factor correction in low and medium voltage networks. The portfolio also includes harmonic filters (active, passive, and SVG static var generators), power electronic capacitors for inverter/renewable applications, filtering reactors, transformers, metal enclosures, and switchgear. Offerings are delivered as engineered, often custom-configured solutions for utilities, industrial plants, and renewable energy operators.

Product overview

RTR Energía is a world leader in capacitors manufacturing and power factor correction systems (LV & MV), with 45 years of experience (1979-2024). The company offers a comprehensive portfolio of power quality improvement solutions including: (1) Low Voltage capacitors for power factor correction including three-phase (DWCAP, MA/C/CE, SUPER DWCAP, BO/R series) and single-phase (EA) capacitors; (2) L.V. Fixed Capacitors for indoor and outdoor applications; (3) L.V. Capacitor Banks in various configurations including COMPACT, MODULAR, ARM, ST-STF with static contactors, ES-ESF with electronic contactors, and ESH-ESFH hybrid banks with SVG technology; (4) Medium Voltage capacitors and capacitor banks; (5) Power Electronic Capacitors for AC filtering and DC-Link applications; (6) Harmonic Filters including SVG (Static Var Generator), Active Filters, and Passive Filters; (7) Metal Enclosures; (8) Filtering Reactors including detuned reactors, sine filters, line reactors, motor reactors, and shunt reactors; (9) Transformers for isolation, control, medical, and railway applications; (10) Switchgear and Auxiliary Equipment including contactors, switches, and power factor controllers; and (11) Panel accessories. The company became part of the Arteche Group in 2025 to boost international growth and expand technological capabilities.

Differentiator

Problem solved

Functional benefit

Brands

• DWCAP: Patented dual winding three-phase capacitor system with internal windings displacement for enhanced safety and performance.

Products and services

• DWCAP Three-Phase Capacitors Patented dual-winding three-phase low-voltage capacitors for power factor correction, available in DWCAP, DWCAP RTF (reinforced for up to 350xIn peak current and 150,000h life), and DWCAP RCT (for 210/189/134Hz detuned reactor harmonic filtering) variants. Delta connection, dry type with overpressure disconnection and integrated discharge resistors.
• MA/C/CE TER Three-Phase Capacitors Three-phase low-voltage capacitors with internal fuse protection, self-healing metallized polypropylene film dielectric, and overpressure disconnection. Available in standard, RTF (reinforced, up to 350xIn peak current), and RCT (detuned reactor variants for harmonic filtering) versions.
• MA/C/CE Three-Phase Capacitors Three-phase low-voltage capacitors with Faston terminals for indoor mounting, overpressure disconnection system, and protection by internal fuses.
• SUPER DWCAP Three-Phase Capacitors High-performance three-phase dual-winding capacitors with up to 350xIn peak current capacity, 200,000h useful life, and 2.05xIn overcurrent capability for demanding power factor correction duty.
• BO/R TER Three-Phase Capacitors in Metallic Box DWCAP three-phase capacitors housed in metallic enclosures with patented internal windings displacement system and RAL 6034 finish. Includes BO/R TER, BO/R TER RTF (reinforced), and BO/R TER RCT (detuned reactor) variants.
• BO/R Prismatic Three-Phase Capacitors Prismatic three-phase capacitors with single-phase elements connected by threaded stud for indoor mounting. Includes BO/R, BO/R RTF (up to 200xIn peak), BO/R RCT, and BO/R ARM (up to 2.1xIn overcurrent and 1.80xUn overvoltage) variants.
• EA Single-Phase Capacitors Single-phase low-voltage capacitors with Faston terminal, overpressure disconnection system, and internal fuse protection.
• L.V. Fixed Indoor Capacitors (PRBA-PRBD, PR00-PRC0, PRCT, PRF0, PRFT, C1) Protected fixed three-phase capacitor banks for indoor installations. Includes PRBA-PRBD (with built-in discharge resistor and patented DWCAP), PR00-PRC0 (fixed PFC without automatic regulation), PRCT (programmable time switch for CNMC P6 period), PRF0 and PRFT (with detuned reactors for harmonic filtering), and C1 (with contactors and MCB circuit breaker).
• Outdoor Fixed Capacitors Protected fixed three-phase capacitors for outdoor installation, housed in polyester cabinets with IP-65 protection degree.
• COMPACT Capacitor Banks Compact low-voltage capacitor banks for automatic power factor correction, available in COMPACT-2 (one or two steps), COMPACT-3-R (small installations and communities), COMPACT-4 (microprocessor regulator), COMPACT-7 (medium capacity with step protection), and COMPACT-9 (high capacity for commercial premises).
• MODULAR Capacitor Bank Modular low-voltage capacitor bank built with MA/C/CE/TER or DWCAP capacitors, contactors, and control transformer for flexible power factor correction configurations.
• ARM Capacitor Bank with Detuned Reactors Low-voltage capacitor bank with detuned passive filtering reactors tuned to 189Hz, designed for industrial installations where harmonic distortion exceeds 3% THD/U or 30% THD/I.
• ST-STF Capacitor Bank with Static Contactors Low-voltage capacitor bank with thyristor-based static contactors for fast connection/disconnection without starting transients. Designed for spot welding machines, elevators, and cranes with rapidly varying loads.
• ES/ESF Modular Capacitor Banks with Electronic Contactors High-quality modular low-voltage capacitor banks with electronic contactors enabling quick transient-free connection and plug-and-play rack steps. ESF variant combines electronic contactors with detuned harmonic filters for industrial facilities with THD/U above 3% and THD/I above 30%.
• ESH-ESFH Hybrid Capacitor Bank with SVG Hybrid low-voltage capacitor bank combining capacitor banks with electronic contactors and reactive static generators (SVG) for instantaneous compensation of both capacitive and inductive reactive energy.
• MV Single-Phase Capacitors Medium-voltage single-phase capacitors rated up to 24kV and 1000kVAr, using high-purity polypropylene dielectric and PXE oil insulation for distribution and substation applications.
• MV Three-Phase Capacitors Medium-voltage three-phase capacitors rated up to 12kV and 1000kVAr with internal fuses and IP00 protection for medium-voltage distribution networks.
• MV Capacitor Banks Medium-voltage capacitor banks for installation with transformer stations and power substations, used for reactive power factor correction and voltage regulation on distribution networks.
• Power Electronic Capacitors (AC Filtering and DC-Link) AC filtering capacitors (up to 1400VAC) for DC/AC inverters in wind generators, solar inverters, UPS, and harmonic filtering; and DC-Link capacitors (up to 2200VAC, 3200 microfarad) for power electronics switching current applications.
• SVG (Static Var Generator) Static var generator for power factor correction and harmonic reduction to below 5% THDI, with real-time compensation and response time as low as 50 microseconds, full response in less than one cycle.
• Active Harmonic Filters Active harmonic filters that eliminate harmonic distortion by injecting compensating currents, supporting filtering up to the 51st harmonic with 25 microsecond response time and THDI guarantee below 5%.
• Passive Harmonic Filters Passive harmonic filters for power converters using line impedances and LC filter technology, providing up to 90% harmonic attenuation.
• Metal Enclosures Custom metal enclosures for protection of LV and MV electrical switchgear, including cabinets, structures, and telecommunications enclosures with IP65 protection.
• Detuned Reactors and Filtering Reactors Three-phase detuned reactors (wire-wound and aluminum foil-wound) tuned to 210, 189, or 134Hz resonance frequencies for use with MA/C/CE TER RCT or DWCAP RCT capacitors in harmonic filtering applications.
• Sine Filters, Line Reactors, Motor Reactors, and Shunt Reactors Sinusoidal output filters for frequency converters (eliminates voltage peaks and reduces dV/dt), three-phase line reactors (dampen harmonic content from power converters), motor reactors (motor protection at converter output), and shunt reactors (compensate capacitive load on long transmission lines).
• Transformers (Isolation, Control, Autotransformers, Medical, Railway) Isolator transformers for electrical isolation, control/manueuer transformers, autotransformers for voltage adjustment, medical/health use transformers, and railway application transformers including converting transformers, choke coils, inverter coils, and signal transformers.
• Switchgear and Auxiliary Equipment Thyristor-based static contactors, electromagnetic contactors, fast discharge resistors, load break switches, molded case switches, automatic switches, differential switches, and magnetotermic switches for capacitor bank protection and switching.
• Power Factor Controllers and Panel Accessories Reactive energy regulators (PR-14D, PR-14D8/96, PR-12D, PR-15D) for automatic power factor correction control, panel meters and power quality analyzers (RTR-M3, RTR-MM01), intensity transformers (sum and split core), and motor run and lighting capacitors.

Quantifiable outcome

• SVG response time as low as 50μs with full response in less than 1 cycle
• +3 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• Arteche GroupcoreStrategic or Co-development PartnerRTR Energía became part of the Arteche Group in 2025 to boost international growth, expand technological capabilities, and continue delivering high-quality energy efficiency solutions. The acquisition strengthens Arteche's network reliability business.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Siemens: Major industrial conglomerate with significant power quality and grid solutions portfolio including capacitors, STATCOMs (SVC PLUS) and active filters. Competes with RTR in utility-scale reactive power compensation projects.
• Schneider Electric: Global electrification and power quality leader offering comprehensive PFC capacitor banks, VarPlus capacitors, active harmonic filters and AccuSine SVGs. Competes with RTR across both utility and industrial segments as part of a much broader portfolio.
• ABB: Major incumbent in power quality, offering capacitors, capacitor banks, SVC/STATCOM systems and active filters (PQF, AccuSine families). Competes with RTR for utility reactive power compensation and industrial harmonic mitigation projects globally.
• Eaton: Diversified power management company with a capacitor and power factor correction product line (e.g., UNIPAK, MultiPak), plus broader switchgear and UPS offerings. Overlaps with RTR in industrial and commercial power quality.
• Legrand: Global electrical and digital building infrastructure company offering capacitor banks and power factor correction equipment under its energy distribution portfolio. Competes with RTR in commercial and light-industrial segments.

Direct peers

• ICAR SpA: Italian manufacturer of power capacitors and power factor correction systems for industrial and utility markets. Comparable European specialist profile with overlapping customer segments in Mediterranean and broader EU markets.
• CIRCUTOR: Spanish-headquartered specialist in power factor correction, harmonic filters and energy efficiency, with a similar product portfolio (capacitor banks, active filters, SVG). Most direct Iberian competitor to RTR Energía given comparable size, technology focus and target customers.
• Frako Kondensatoren: German specialist manufacturer of power factor correction capacitors, capacitor banks and power quality components. Closest European peer in scale and product mix, frequently competing with RTR in DACH and broader EU industrial tenders.
• Electronicon: German specialist in AC and DC capacitors for power electronics, power factor correction and renewable energy applications. Comparable technology depth to RTR with significant overlap in DC-Link and AC filtering capacitors.
• ZEZ Silko: Czech manufacturer of power capacitors, capacitor banks and power factor correction equipment serving European utilities and industry. Comparable size and product range, often competing on price in mid-voltage segments.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about RTR Energía