What A2A Calore e Servizi does

A2A Calore e Servizi S.r.l. is the district heating and district cooling operating subsidiary of Italian multi-utility A2A S.p.A., and is the largest district heating operator in Italy by pipeline network length (1,300+ km of pre-insulated twin pipeline) and distributed thermal energy (3.1 TWh sold in 2024, serving 491,646 apartment equivalents and 27,000+ connected users across Milan, Brescia, Bergamo, Cremona, and Lodi). The company sells centralized heating (teleriscaldamento) and cooling (teleraffrescamento) via buried distribution networks, replacing individual boilers in condominiums, commercial buildings, public administration sites, and new real-estate developments. Heat production is diversified across cogeneration plants, waste-to-energy, industrial heat recovery (i-Recovery at Alfa Acciai, Heat-Leap at Ori Martin), data center heat recovery (Qarnot at Brescia, Retelit Avalon 3 at Milan), geothermal (Fri-El Geo partnership), and biomass, with up to 5,000 m³ thermal storage tanks at multiple plants supporting grid balancing.

Revenue is generated primarily through ARERA-regulated fixed and variable tariffs on heat delivery to residential, commercial, and institutional customers, with pricing comprising fixed per-kW or per-mc/h charges (updated annually per FOI CPI) and variable per-kWh charges (updated monthly per the ITTLR formula referencing PUN electricity, PSV gas, and EUA carbon prices). A secondary revenue stream comes from ESCo-certified energy efficiency and Public-Private Partnership (PPP) contracts with public administration for building retrofits, facility management, and photovoltaic installations. A smaller ancillary stream arises from granting telecom operators access to the district heating pipe infrastructure under D.lgs. 33/2016, delegated to A2A Smart City S.p.A. The company also sells heat management (Gestione Calore), digital self-service tools (Bollett@mail e-invoicing, customer portal, OTP video-call signing, digital energy certification), and professional training.

The go-to-market combines B2B/B2G enterprise field sales — particularly for new real-estate developer integrations, industrial heat recovery partnerships, and public sector ESCo contracts — with digital self-service channels for residential and small commercial customers, supported by physical service desks, a contact center, and a 24/7 emergency hotline. A2A Calore e Servizi originated from Brescia's pioneering 1970 district heating system (originally under ASM), exited coal for heat production five years ahead of Italian national targets (by 2020), and is positioning itself as a circular-economy infrastructure platform anchored to decarbonization commitments including the Climate City Contracts of Milan and Bergamo. Luca Rigoni serves as Presidente e CEO / Amministratore Delegato.

Name

A2A Calore e Servizi

Legal name

A2A Calore e Servizi S.r.l.

Website

https://a2acaloreservizi.eu

Company type

Private

Founded year

1970

Operating status

Operating

Short description

A2A Calore e Servizi is Italy's largest district heating operator (subsidiary of A2A S.p.A.), distributing centralized heating and cooling through 1,300+ km of pipeline to 491,646 apartment equivalents across Milan, Brescia, Bergamo, Cremona, and Lodi, with revenue from ARERA-regulated thermal energy sales, ESCo public-sector contracts, and industrial heat recovery partnerships.

Ownership category

akta.pro rank

Product category

District Heating and Cooling

NAICS

Steam and Air-Conditioning Supply (221330), Utilities (22)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

District Energy & Community CHP (District Heating/Cooling Networks) (EUACAKAH)

akta.pro secondary industries

HVAC & Industrial Ventilation (Chillers, AHUs, Exhaust, Filtration) (EUAEAFAE), Waste Heat Recovery & Heat Integration (HRSG/ORC, Pinch Analysis, Heat Exchangers) (EUABAJAF), Boiler & Hydronic Heating Repair & Service (HSAOAHAG)

Keywords

• District heating services
• District cooling networks
• Energy efficiency retrofits
• Waste heat recovery
• ESCo public sector

Headquarters

HQ city

Brescia

HQ country

Italy

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. District Heating Supply (Residential, Condominiums, Commercial): Revenue from supplying thermal energy (heating and domestic hot water) to connected buildings. Pricing comprises fixed charges (per kW, mc/h, or per year) and variable/proportional charges (per kWh consumed). Fixed charges are updated annually (October 1) based on CPI (FOI index). Variable charges are updated monthly based on the ITTLR formula incorporating PUN (National Power Price), PSV gas price, and EUA carbon allowance costs. The ICNF (non-fossil heat share) index averages ~54% in 2026, reflecting the renewable content of supplied heat. Service is regulated by ARERA.
2. Energy Efficiency / ESCo Services for Public Administration: Energy Service Company (ESCo) contracts with Public Administration for building energy retrofits, facility management, photovoltaic installation, and integrated energy solutions. Delivered under Public-Private Partnership (PPP) models with guaranteed energy savings outcomes.
3. Telecom Infrastructure Access (Infraco): Revenue from granting telecom operators access to A2A's physical infrastructure (district heating pipes) for deployment of high-speed electronic communications networks, per D.lgs. 33/2016. Mandate delegated to A2A Smart City S.p.A.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

A2A Calore e Servizi operates the largest district heating and district cooling network in Italy, distributing thermal energy (heating, domestic hot water, and chilled water) via an owned 1,300+ km underground pipeline network across the Lombardy provinces of Milan, Brescia, Bergamo, Cremona, and Lodi. The company also delivers energy efficiency retrofitting and facility management services as a UNI CEI 11352:2014-certified ESCo for Public Administration entities, and grants telecom operators regulated access to its physical pipe infrastructure.

Product overview

A2A Calore e Servizi operates as a utility infrastructure company offering district heating and district cooling services across Lombardy. Its core portfolio centers on Teleriscaldamento (district heating) and Teleraffrescamento (district cooling) — centralized production and distribution of thermal energy via underground pipe networks that replace individual boilers. Supporting these core networks are heat management services (Gestione Calore) for plant operation and maintenance, and energy retrofitting (Riqualificazione Energetica) delivered as an accredited ESCo for public administration. The product line includes digital self-service tools (Bollett@mail e-invoicing, Customer Portal, Digital Energy Certification, Video Call with OTP Digital Signature), a telecommunications infrastructure access service for TLC operators, and professional training programs. The company operates heat production plants (cogeneration, waste-to-energy, biomass, geothermal, industrial heat recovery) and distributes energy across cities in the provinces of Milan, Brescia, Bergamo, Cremona, and Lodi.

Differentiator

Problem solved

Functional benefit

Products and services

• Teleriscaldamento (District Heating) Centralized production and distribution of thermal energy (heating and domestic hot water) via an underground pre-insulated twin-pipeline network. Replaces individual boilers with a heat-exchange connection at the building. Serves residential, commercial, and institutional customers in Milan, Brescia, Bergamo, Cremona, and Lodi.
• Teleraffrescamento (District Cooling) Centralized production and distribution of chilled water via an underground network to cool large buildings during summer. Provided alongside district heating using the same physical pipeline infrastructure.
• ESCo Energy Efficiency and Public Building Retrofits (Riqualificazione Energetica) Accredited ESCo services (UNI CEI 11352:2014) for Public Administration: energy audits, building envelope retrofits, HVAC upgrades, photovoltaic installations, facility management, and connection to district heating. Delivered as turnkey Public-Private Partnership (PPP) projects with guaranteed energy savings outcomes. Targets municipalities, provinces, universities, hospitals, and public agencies.
• Gestione Calore (Heat Management / Operation & Maintenance) Operation, maintenance, and efficiency optimization of building thermal systems (heat exchange substations and in-building distribution), with attention to consumption and ambient comfort. Bundled with district heating supply for connected buildings.
• Telecommunications Infrastructure Access (Infraco) for TLC Operators Regulated access service for licensed telecom operators to deploy fiber/5G infrastructure inside A2A Calore e Servizi-owned physical pipe infrastructure. Mandated by D.lgs. 33/2016 and delegated to A2A Smart City S.p.A.

Quantifiable outcome

• 491,646 apartment equivalents served; 3.1 TWh heat/cold sold; 1,034 tonnes NOx avoided (2021-2024 cumulative)
• +9 more outcomes

Named customers10 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

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

• QarnotcoreStrategic or Co-development Partner · 25 June 2025Pioneering partnership with French company Qarnot to deploy data centers with liquid cooling technology at A2A's Lamarmora plant in Brescia. Phase 1 (operational): 30 QBx computing units with liquid cooling at 65°C, recovering ~800 MWh/year of thermal energy directly to district heating. Phase 2 'Qarnot 2' (in planning, EU-funded): expansion in the former coal storage building, targeting 16 GWh/year thermal energy, ~1,350 apartments, and 3,500 tonnes CO₂ avoided. Qarnot provides HPC cloud services for automotive, aerospace, energy, and maritime sectors, combining computing performance with zero-emission heat recovery.
• RetelitcoreStrategic or Co-development Partner · 5 June 2024Heat recovery partnership with Retelit for the Avalon 3 data center in Milan's Municipality 6. Heat from server cooling is captured and fed into A2A's district heating network, making it Milan's first data center heat recovery project in Italy. Provides 2.5 MWt of annual thermal power and ~15 GWh/year of recovered energy, serving ~1,250 additional families and avoiding ~3,300 tonnes CO₂. Operational from early 2026. Retelit is controlled by Asterion Industrial Partners and operates Italy's largest internet interconnection point.
• DBA Group (DBA PRO)majorImplementation/ SI/ Consulting Partner · 5 June 2024Engineering, design, and construction management for the Retelit data center heat recovery installation in Milan. DBA PRO handles the detailed design and works direction of the heat recovery plant, including engineering of a prefabricated container with internal equipment, structural and system commissioning. Project developed using BIM methodology. DBA Group is listed on Euronext Growth Milan, with 25 offices worldwide and €112.1M production value in 2023.
• Fri-El Geo (Gruppo Fri-El Green Power)majorStrategic or Co-development Partner · 26 October 2023Geothermal energy partnership for Milan district heating. Fri-El Geo, a leader in medium-enthalpy geothermal development, will supply 100% green thermal energy from geothermal plants to be developed within Milan's metropolitan area. Fri-El Geo's Pangea Project identifies 100+ geothermal exploration opportunities in Italy, with 15 immediately feasible. A medium-enthalpy closed-loop geothermal plant (like Ostellato, FE) can heat ~120,000 homes and save ~40,000 tonnes CO₂/year. The partnership supports EU 'Green Buildings' directive goals.
• A2A Smart City S.p.A.coreTechnology or Integration · 1 September 2022A2A Calore e Servizi has mandated A2A Smart City S.p.A. to manage telecom operator infrastructure access requests (D.lgs. 33/2016) for its physical pipe infrastructure. From 01/09/2022, all TLC operator access requests are handled by A2A Smart City at PEC [email protected].
• Ori MartincoreStrategic or Co-development Partner · 4 March 2022Heat-Leap project: a large-scale heat pump (LHP, 6 MWt) developed with Turboden (Mitsubishi Heavy Industries) and funded by the EU LIFE program, recovering low-temperature waste heat from Ori Martin's electric arc furnace cooling circuit. Water temperatures up to 120°C are delivered to the district heating network. Total recovery: 22 GWh/year, equivalent to ~3,500 families and avoiding ~5,000 tonnes CO₂/year. Operational from October 2022. Supported by CSMT Gestione as project funding partner.
• Alfa AcciaicoreStrategic or Co-development Partner · 21 November 2021Alfa Heat Recovery: industrial heat recovery partnership where the Alfa Acciai steel mill in San Polo (Brescia) supplies waste heat from its electric arc furnaces to the A2A district heating network. Heat is transferred via a dedicated 1.2 km twin pipeline and heat exchange station. The system now recovers ~50,000 MWh/year of thermal energy, serving ~5,000 families and avoiding 10,000+ tonnes CO₂ annually. The project evolved from the 2021 Smart Grid Pilot to full industrial-scale operation, with a third heat exchanger, inverter panel, and circulation pump added in summer 2023 to boost performance. The recovered heat satisfies 73% of the average demand in the San Polo/Sanpolino urban area (~2,700 connected users).
• Eni / EnipowercoreStrategic or Co-development Partner · 25 May 202120-year agreement for the supply of cogenerated heat from Enipower's San Donato Milanese plant (Bolgiano site) to the Milan district heating network. A2A builds a heat exchange and pumping station near the Eni plant to transport heat via its network from San Donato Milanese to Milan. Provides ~54 GWh/year of heat, equivalent to ~6,000 apartments. Part of the LombHe@t (Lombard Energy Hub) project, co-financed by Regione Lombardia's Call Hub program.
• Rea Dalmine (Gruppo Greenthesis)coreStrategic or Co-development Partner · 11 September 2019Heat recovery from the Rea Dalmine waste-to-energy plant to expand the A2A district heating network in Bergamo. Investment of ~€30 million (A2A: €20M+ for pipeline and Goltara plant upgrades; Rea Dalmine: €9.5M for new cogeneration section). Includes 5.6 km pipeline from Dalmine to Bergamo (funded €3.8M by PNRR), a 5,000 m³ thermal storage tank at Goltara, and a pumping station upgrade. Increases Bergamo's available thermal energy by ~50%, adding ~22 km of network and serving ~11,000 new apartments. Avoids ~15,000 tonnes CO₂/year.
• CogeneraminorStrategic or Co-development PartnerCogeneration partnership for the Nuova Accademia della Guardia di Finanza in Bergamo. Cogenera developed a technology hub with cogeneration integrated into the city district heating network, ensuring year-round energy efficiency and sustainable comfort.
• EuromilanomajorStrategic or Co-development PartnerCollaboration on UPTOWN Cascina Merlata, the first Smart District in Italy. A2A provides district heating and geothermal district cooling for the entire sustainable urban district. Euromilano led development; Open Fiber also involved in the digital infrastructure.
• Borio MangiarottimajorStrategic or Co-development PartnerPartnership for the SeiMilano residential district, delivering sustainable climate control that avoids 800 tonnes of CO₂ annually. Borio Mangiarotti, led by CEO Edoardo De Albertis, prioritized ESG values from the project's earliest stages.
• Gruppo San DonatomajorStrategic or Co-development PartnerPartnership for Ospedale Galeazzi-Sant'Ambrogio in Milan, bringing district heating to one of Europe's most sustainable hospitals, LEED Gold certified, powered by renewable energy and heat recovery.

Scale indicators18 records

Recent moves6 records

Expansion highlights7 records

Direct peers

• Iren Energia: Iren's energy generation arm operates district heating networks in several Italian cities (e.g., Turin, Reggio Emilia, Parma) and serves a comparable mix of residential, commercial and public-sector customers under ARERA-style regulation, making it the closest like-for-like peer to A2A Calore e Servizi.
• Hera Group: Multi-utility with district heating operations in Emilia-Romagna (e.g., Modena, Ferrara) and an integrated ESCo-style energy services business serving municipalities; comparable end markets (residential, public administration), regulated tariff regime and infrastructure-heavy business model.
• ACEA: Rome-headquartered multi-utility with district heating/cooling activities and public-sector energy efficiency services in central Italy; overlapping customer base (municipalities, hospitals, large buildings) and similar reliance on long-dated infrastructure concessions.

Broad incumbents

• ENGIE (Dalkia): Global energy major whose Dalkia subsidiary is the largest district heating and cooling operator in Europe (France, Italy, Eastern Europe); broader portfolio than A2A Calore e Servizi but directly comparable in heat network operations, decarbonization roadmap and public-sector energy services.
• Veolia: Through its energy services division, Veolia operates district heating and cooling networks across Europe with significant cogeneration and waste-to-energy integration, mirroring A2A's diversified heat mix and ESCo-style public building offerings.
• Fortum: Nordic energy major with significant district heating operations in Finland, Sweden and the Baltics, including biomass and waste heat recovery projects; broader power generation portfolio than A2A Calore e Servizi but overlapping focus on urban heat decarbonization.

Regional players

• Wien Energie: Vienna's municipal utility and one of Europe's largest district heating operators (~570 km of network, large share of biomass and waste heat recovery); comparable in city-scale district heating model and decarbonization strategy, but in a different country/market.
• Stockholm Exergi: Sweden's largest district heating operator with a leading decarbonization roadmap (biomass, heat pumps, waste heat) serving the Stockholm metropolitan area; highly comparable on heat-mix transition and large installed base, though operating under a different regulatory regime.
• MVV Energie: German municipal utility operating large-scale district heating networks (e.g., Mannheim, Kiel) with biomass, waste-to-energy and industrial heat recovery; comparable infrastructure-led, decarbonization-focused utility model, primarily active in Germany rather than Italy.

Emerging players

• Cogenera: Italian cogeneration specialist that has partnered with A2A Calore e Servizi on projects such as the Guardia di Finanza campus in Bergamo; comparable technology focus (cogeneration integrated with district heating) and overlapping customer type (public administration), making it a relevant emerging/adjacent peer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xtwitter.com/gruppo_a2a?lang=it
• YouTubeyoutube.com/a2a
• Facebookit-it.facebook.com/GruppoA2A
• LinkedInlinkedin.com/company/a2a-calore-e-servizi

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 A2A Calore e Servizi