Industry
Early-warning system for glass manufacturing
Glass manufacturing melts raw materials at very high temperatures in tank furnaces that run on natural gas or electricity almost continuously. SignalChain assesses daily which external developments could become relevant for this industry.
The essentials in brief
- Tank furnaces run continuously. They can hardly be shut down without significant technical and economic risk.
- Natural gas and electricity prices are the biggest cost factors. Both channels can act at the same time.
- Industrial gases are a separate channel. Certain melting and forming processes additionally require them.
- Furnace size and utilisation are decisive. Both determine the actual degree to which a business is affected.
Why is glass manufacturing especially vulnerable?
Tank furnaces for melting glass run continuously and can hardly be shut down without significant technical and economic risk. That makes the natural gas and electricity price one of the biggest cost factors in this industry. Industrial gases are also needed for certain melting and forming processes.
How can this affect a business?
A typical sequence:
The price figure itself is officially recorded; whether and how strongly an individual business reacts depends on furnace size and utilisation.
Example: the German electricity market in 2025, in figures
In 2025, the average day-ahead wholesale electricity price in Germany stood at 89.32 euros per megawatt-hour according to the Bundesnetzagentur, 13.8 percent above the previous year. In 40 hours of the year, the price exceeded 300 euros per megawatt-hour.
For a tank furnace operation that must maintain melting temperature around the clock, this consumption can hardly be shifted. That is precisely why a large share of annual costs is decided in a few particularly expensive hours, if the business's own contract is closely tied to the spot market – regardless of how the annual average turns out.
What matters is the business's own contract model: how closely is its electricity or gas price tied to the spot market, and how large is the furnace that must be continuously supplied?
Which risks are especially relevant for glass manufacturing?
- Natural gas prices
- Tank furnaces run continuously and react to price spikes almost immediately.
- Electricity prices
- Besides natural gas, electrical melting and forming steps also depend on the wholesale electricity price.
- Industrial gases
- Certain melting and forming processes require industrial gases, and their availability can fluctuate.
How does SignalChain help?
SignalChain monitors natural gas and wholesale electricity prices daily, together with official reports on plant outages at energy suppliers, and assesses whether a development could become relevant for your business.
For official hazard and disaster warnings, the relevant authorities remain the definitive source; SignalChain does not provide advice for your individual situation.
Frequently asked questions about the early-warning system for glass manufacturing
Why is glass manufacturing so energy-intensive?
Because tank furnaces must continuously maintain very high melting temperatures and cannot be shut down at short notice.
What role do industrial gases play in glass manufacturing?
They are used in certain melting and forming steps; shortages can constrain production independently of the energy price.
Does SignalChain replace an in-house risk department?
No, but it takes over the daily observation of external developments that otherwise no one in the business would perform.
Sources and data basis
Assess glass manufacturing risks earlier
SignalChain shows you daily which external developments could become relevant for your melting operations.