Transitioning from Selling Heat Pump Hardware to Home Energy-as-a-Service Subscriptions

📌 Background

The European energy crisis and carbon neutrality policies propelled heat pumps into the spotlight. Following Viessmann Climate Solutions' integration into Carrier in 2024, the company shifted away from merely selling boiler hardware to providing Energy-as-a-Service using Home Energy Management Systems (HEMS) as an entry point. By 2026, industry hotspots include European heat pump sales surpassing gas boilers for the first time and the rising value of grid flexibility. Viessmann transforms one-time equipment sales into recurring revenue through fixed monthly subscription fees and energy communities.

👤 Target Customers

German households and European residential users, particularly homeowners installing heat pumps or solar-plus-storage systems. Grid operators and energy retailers serve as paying customers for flexibility dispatch services. Final costs are primarily paid monthly by households, with a portion of the value recovered from the grid.

💰 Revenue Streams

1) Revenue from sales and installation services of home energy management hardware and software packages; 2) Unified monthly fee subscriptions and leasing models for energy communities, featuring integrated delivery of solar, storage, and heat pumps along with self-consumption incentives; 3) Continuous energy market revenue-sharing obtained by selling electricity and dispatch services to the grid via grid flexibility programs.

🧮 Cost Structure

Procurement and installation costs for heat pump and energy storage hardware, R&D for home energy management software and cloud platforms, aggregation settlement and compliance operations in the energy market, and dealer channel and after-sales service expenses.

🛡️ Moat

A century of accumulated brand trust combined with global channel synergies from Carrier; a closed-loop data system formed by the integration of hardware and software between HEMS and proprietary heat pumps; and first-mover advantages in the German energy market in acquiring aggregation, metering, and flexibility dispatch qualifications.

🔑 Keys to Success

• Convert HEMS users through an installation-as-a-subscription pathway to accumulate long-term energy usage data
• Aggregate household-side flexibility to create economies of scale and participate in the grid dispatch market
• Leverage Carrier's channels in Asia-Pacific, Middle East, and Africa to replicate the German model overseas

⚠️ Risks

• Decline in heat pump installations due to the phasing out of European subsidy policies
• Unstable willingness of household users to pay for monthly subscriptions
• Price volatility in the grid flexibility market impacting aggregation returns

🏢 Cases

• ViShare Energy Community (Germany)
• ViFlex Grid Flexibility Program
• 192% year-over-year sales growth in Home Energy Management Systems (early data)

📊 SWOT Analysis