Service Intermunicipal Energies

What Service Intermunicipal Energies does

Service Intermunicipal Energies (SIE SA) is a Swiss municipal utility founded in 1935 and jointly owned by the four communes of Chavannes, Crissier, Écublens, and Renens in the Ouest lausannois region of Canton Vaud. SIE operates as the designated intermunicipal electricity distributor and energy-services provider for this franchise territory, serving 29,452 customer connections across a population of 49,553 and delivering 332.7 GWh of electricity annually through its owned distribution grid. The company's technology stack combines regulated distribution infrastructure with advanced metering (smart meters capturing 15-minute interval consumption data), a fiber-to-the-home (FTTH) network managed by sister company TVT Services SA, district-heating networks, EV-charging infrastructure, and digital energy-analysis tools. The most differentiated technical components are DataWatt — an energy-consumption analytics platform co-developed with EPFL that performs anomaly detection, peak identification, and benchmarking against Swiss norms — and Calculowatt, a free consumer tool for appliance-level consumption estimation.

SIE's commercial offering is structured as a dual-entity operation: SIE SA handles electricity distribution, renewable-energy products (SIE Nature, SIE Nature+), and a broad portfolio of energy services including photovoltaic installations, heat pumps, district heating, microgrids, self-consumption communities (CA/CA+), energy contracting, CECB energy diagnostics, and electromobility; TVT Services SA manages multimedia services including TVT Basic (50 Mbit/s internet, 90+ HD channels, telephone from CHF 29.90/month), TVT PRO for businesses, dark-fiber services, and reseller partnerships with Sunrise UPC and Yallo extending service into Bussigny. Revenue mechanics combine recurring regulated distribution fees, subscription-based multimedia tariffs (TVT Basic at CHF 29.90/month, Phone CH add-on at CHF 15/month), and project-based professional services for renewable installations.

The business serves three primary customer segments — residential households (the largest segment, served across all four communes), commercial and industrial enterprises (via TVT PRO, energy contracting, and EV-charging infrastructure), and the four partner municipal governments (for Smart City, public lighting, and grid infrastructure). Go-to-market is direct-to-customer through physical Espace Conseils locations, an online customer portal (Espace Client), and field-service teams. Recent strategic emphasis has been on renewable-energy expansion (Sur Grati wind farm JV with VOé and aventron), digital tools (DataWatt/Calculowatt launched November 2025), and a 2026 appliance-replacement subsidy program. The company is ISO 9001 and ISO 14001 certified and operates without external private-equity or venture-capital funding, with governance provided by a Board of Directors chaired by Jean-François Clément (Syndic of Renens) and operational leadership under Director Christophe Bossel.

Name

Service Intermunicipal Energies

Legal name

SIE SA

Website

https://sie.ch

Company type

Private

Founded year

1935

Operating status

Operating

Headcount range

51–100 employees

Short description

Service Intermunicipal Energies (SIE) is a Swiss municipal utility founded in 1935, jointly owned by four communes in western Lausanne. It distributes 332.7 GWh of electricity annually to 29,452 customers and delivers broadband, district heating, EV charging, and renewable-energy services through its energy and multimedia subsidiaries.

Ownership category

akta.pro rank

Product category

Municipal Electric Utility

NAICS

Electric Power Distribution (221122), Electric Power Generation, Transmission and Distribution (2211), Solar Electric Power Generation (221114)

SIC

Electric, Gas & Sanitary Services (4900)

akta.pro industry

PRIMARYEUADAAAI

Interconnection & Grid Access Services (Connection Agreements, Queue Mgmt)

Energy, Utilities & Environment/Electric Transmission & Distribution (T&D)/Transmission System Operators (TSOs) & High-Voltage Transmission

SECONDARYEUADAFAD

AMI Communications (RF Mesh, PLC, Cellular/NB-IoT, Private LTE)

Energy, Utilities & Environment/Electric Transmission & Distribution (T&D)/Smart Grid & Advanced Metering Infrastructure (AMI)

SECONDARYEUADAFAH

Customer Energy Engagement (In-Home Displays, Portals, Usage Insights)

Energy, Utilities & Environment/Electric Transmission & Distribution (T&D)/Smart Grid & Advanced Metering Infrastructure (AMI)

SECONDARYEUAMAGAB

Distributed & Commercial Renewable O&M (Rooftop Solar, C&I Wind, Small Hydro)

Energy, Utilities & Environment/Renewable Energy (Solar, Wind, Hydro & Geothermal)/Renewable Operations, Maintenance & Asset Management

SECONDARYEUAJAHAK

Customer Self-Service Portals & Digital Experience (Web/Mobile)

Energy, Utilities & Environment/Gas Utilities (Distribution)/Customer Service, Billing & CIS/CRM

Keywords

• Municipal electricity distribution
• Renewable energy solutions
• Fiber optic telecom
• Smart grid metering
• Energy efficiency consulting

Headquarters

HQ city

Renens

HQ country

Switzerland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity Distribution and Sales: Core utility business providing electricity distribution and sales to residential and business customers across four municipalities. Revenue generated through grid usage fees and electricity supply contracts including SIE Nature and SIE Nature+ renewable products.
2. Multimedia Services: TVT Services SA provides multimedia services including internet (up to 50 Mbit/s, with FTTH options), television (90+ HD channels), and telephone services. Revenue from monthly subscriptions and usage-based call charges.
3. Energy Services and Consulting: Comprehensive energy services including photovoltaic installations, heat pump systems, district heating, electromobility charging stations, energy diagnostics (CECB), incentive consulting, microgrid solutions, energy communities, and contracting. Professional services revenue for installation, consulting, and project management.
4. Network Infrastructure Services: Charges for network connections, installation inspections, meter readings, smart meter management, and public/private lighting services.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

Service Intermunicipal Energies (SIE SA) is a regional municipal utility that distributes electricity, develops renewable energy solutions (photovoltaic, heat pumps, district heating), and provides energy efficiency and smart-city services to roughly 29,452 customers across the communes of Chavannes, Crissier, Écublens, and Renens in western Lausanne, Switzerland. Through its sister company TVT Services SA, it also operates a FTTH fiber optic network offering internet, TV, and telephony to residential (TVT Basic) and business (TVT PRO) customers, supplemented by partner offers (Sunrise, Yallo).

Product overview

Service Intermunicipal Energies (SIE) is a regional energy and multimedia utility serving four municipalities in western Lausanne (Chavannes, Crissier, Écublens, and Renens). The company operates two divisions: SIE SA handles electricity distribution, renewable energy products (SIE Nature, SIE Nature+), and energy services including photovoltaics, heat pumps, district heating, electromobility, and smart grid solutions; while TVT Services SA manages multimedia services including TVT Basic (50 Mbit/s internet, 90+ TV channels, telephone), TVT PRO business solutions, and fiber optic network deployment (FTTH). The company also offers digital tools including DataWatt (EPFL-collaborated energy consumption analysis) and Calculowatt (appliance impact estimation), plus partnerships with Sunrise and Yallo for expanded multimedia offerings. Key infrastructure includes smart meters, fiber optics, dark fiber, and district heating networks serving approximately 29,452 customers across 49,553 population.

Differentiator

Problem solved

Functional benefit

Brands

• SIE Nature: Renewable energy product offering by SIE for residential and business customers.
• SIE Nature+
• TVT Basic
• TVT PRO
• Datawatt
• Calculowatt
• Phone CH

Products and services

• Electricity Distribution Core electricity distribution service providing power to approximately 29,452 customers across the communes of Chavannes, Crissier, Écublens, and Renens, delivering 332.7 GWh annually.
• TVT Basic (Residential Multimedia) Residential multimedia subscription offering internet, TV, and telephony services over the TVT Services FTTH fiber optic network for households in the concession area.
• TVT PRO (Business Multimedia) Business-grade multimedia service providing internet, TV, and telephony over the TVT Services FTTH network, dedicated to professional clients and local businesses.
• FTTH Fiber Optic Network Access High-speed fiber-to-the-home connectivity operated by sister company TVT Services SA, underpinning TVT Basic and TVT PRO offerings and partner brands (Sunrise, Yallo).
• SIE Nature (Green Electricity) Renewable electricity offering providing customers with green-power supply over the standard grid.
• SIE Nature+ (Premium Green Electricity) Premium tier of renewable electricity supply for customers seeking the highest share of green energy.
• Photovoltaic Installations Solar photovoltaic installation services for residential and business customers, including design and deployment of solar generation assets.
• Heat Pump Solutions (Pompe à chaleur) Heat pump solutions provided to customers as part of SIE's renewable heating portfolio, replacing fossil-fuel heating systems.
• District Heating (Chauffage à distance) District heating service delivering centralized heat to connected buildings in the concession area.
• Electric Mobility (Electromobilité) Electric mobility offering supporting EV charging infrastructure deployment across the concession territory.
• Microgrid Solutions Microgrid solutions enabling localized generation, storage, and distribution of electricity for resilience and self-consumption.
• Smart Lighting (Éclairage intelligent) Smart lighting solutions for municipalities and businesses, providing connected, energy-efficient public or commercial lighting.
• Smart City Solutions Smart city services for the four concession communes, encompassing connected infrastructure and data-driven municipal services.
• Smart Meters (Compteurs intelligents) Smart electricity meters deployed to customers to enable consumption monitoring, including via the DataWatt platform.
• DataWatt (Energy Monitoring Platform) Proprietary digital energy monitoring platform enabling customers to track and analyze their electricity consumption.
• Calculowatt (Energy Calculator) Online energy calculator tool supporting customers in estimating and optimizing their electricity usage.
• CECB Diagnostic (CECB Diagnostic) Official CECB energy-efficiency building diagnostic advisory service for residential and commercial buildings.
• Energy Contracting (Contracting énergétique) Energy contracting service providing customers with guaranteed energy performance and efficiency solutions for buildings and facilities.
• Self-Consumption Communities (Communautés d'autoconsommation) Service enabling customers to form shared self-consumption communities for locally generated photovoltaic electricity.
• Espace Conseils (Customer Advisory Service) Physical customer advisory service offering personalized energy and multimedia guidance to households and businesses.

Quantifiable outcome

• 29,452 customers served across 4 municipalities
• +2 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration13 records

AI capability3 records

Feature4 records

Partnerships

Seven partnerships are on record, tiered major, core and minor.

• VOémajorStrategic or Co-development Partner · 13 April 2026Energy company partnering with SIE and aventron to construct and operate the future 'Sur Grati' wind park. Joint venture combining local utility expertise with regional energy development capabilities.
• aventronmajorStrategic or Co-development Partner · 13 April 2026Energy company partnering with SIE and VOé to construct and operate the future 'Sur Grati' wind park. Partnership bringing wind energy production capacity to the region.
• EPFL (École Polytechnique Fédérale de Lausanne)coreTechnology or IntegrationStrategic collaboration with EPFL to develop DataWatt, an innovative energy analysis tool that processes 15-minute interval consumption data. The partnership leverages academic research capabilities for practical utility applications, providing customers with detailed energy profile analysis and optimization recommendations.
• TVT Services SAcoreStrategic or Co-development PartnerSister company handling multimedia services including internet, television, and telecommunications. TVT operates the fiber optic network (FTTH) and provides connectivity services, complementing SIE's energy offerings. TVT has established a partnership with Sunrise UPC extending services to Bussigny.
• Sunrise UPCmajorChannel Partner/ Reseller/ DistributorOfficial partner providing extended multimedia services including high-speed internet packages, TV bundles, and mobile plans. Services available to TVT customers including residents of Bussigny who joined the TVT network.
• YallomajorChannel Partner/ Reseller/ DistributorOfficial partner offering flexible multimedia solutions including fiber up to 10 Gbit/s, cable, 4G/5G options, and 280+ TV channels with advanced features starting from CHF 34.90/month.
• Perfect SAminorOthersBilling partner responsible for invoice printing and distribution services. Data transferred to Perfect SA for processing, after which personal data is immediately deleted.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Swisscom AG: Incumbent Swiss telecom with extensive FTTH footprint and enterprise services, directly competing with TVT in the Ouest lausannois. Useful as a market-structure reference for TVT's competitive position.
• BKW Energie AG: Large listed Swiss integrated energy company active across generation, distribution, and services in the Bern/adjacent cantons. Not in SIE's direct geography but the reference regional utility benchmark for valuations and capital allocation in Switzerland.

Direct peers

• ewz (Elektrizitätswerk der Stadt Zürich): Municipal utility for the City of Zürich operating electricity distribution, fiber networks, and EV charging. Directly comparable intermunicipal/municipal-utility model with similar bundled telecom and e-mobility business lines.
• Services Industriels de Lausanne (SIL): Direct Swiss peer operating the electricity and heating grid in the City of Lausanne, immediately adjacent to SIE's four-municipality territory in the Ouest lausannois. Comparable municipal utility structure, multi-energy product set, and similar regulatory regime.
• Groupe E SA: Canton of Fribourg's regional multi-energy utility offering electricity, heating, and telecom services to municipalities - functionally similar to SIE's intermunicipal structure, with comparable renewable and grid-services portfolio.
• Romande Energie: Listed Swiss utility serving the Vaud and neighbouring cantons with electricity distribution, renewable generation, and energy services. Same Vaud cantonal regulatory backdrop as SIE and overlapping customer geography.
• Services Industriels de Genève (SIG): Multi-utility (electricity, gas, heating, telecom, water) for the City of Geneva with renewable generation, telecom offerings, and Smart City services. Closest direct analogue to SIE's combined energy + multimedia municipal-utility model, although at much larger scale.
• IB Murten / Industrielle Werke Basel (IWB): Basel municipal multi-utility (electricity, heat, water, telecom) with renewable production and FTTH offerings - analogous Swiss municipal utility that competes on locally bundled energy and broadband.

Others

• Yallo (Sunrise UPC): Swiss challenger broadband brand and TVT commercial partner providing fiber and bundled services. Comparable on product offering to TVT Basic and relevant for understanding reseller economics.
• Sunrise UPC: National Swiss telecom operator and existing commercial partner to TVT (reselling Sunrise offers). Comparable to TVT's multimedia/telecom product family and a benchmark for FTTH and bundled internet pricing in SIE's region.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sie-sa

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

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 Service Intermunicipal Energies