1. Home
  2. > Case Studies

Foamglas enhances commitment to sustainability with DSR

By taking part in Demand Side Response programmes, Belgian glass manufacturer enhances its commitment to sustainable development.

Uninterrupted production

The Foamglas plant in Tessenderlo, Belgium already used a large share of renewable energy with wind turbines and solar panels installed on site. However, intermittent supply threatened to disrupt production.

Meeting sustainable targets

The proposal from REstore (now part of Centrica Business Solutions), was to switch off the plant’s glass smelter electrodes. This was initially received with apprehension by Foamglas management.

However, the fact that Demand Side Response (DSR) ensures any switch off decision is subject to a set of tight boundary conditions, gained positive support. Foamglas’ glass smelters are well-insulated ovens that benefit from a large thermal inertia. They can be easily disconnected and reconnected provided the molten glass remains above a set temperature. If the temperature drops too low, the curtailment is interrupted automatically, and the electrodes reactivated to reheat the furnace.

The results

Centrica Business Solution’s seamless automation technology makes the whole operation no-risk and requires very little extra supervision from the Foamglas plant operators. Production is no longer threatened.

In addition, to avoid the risk of penalties Foamglas also participates in a portfolio with other industrial consumers. This effectively acts as a shield: when the glass smelter needs to be reactivated, another provider can take over and deliver the necessary power to the grid operator.

The project helps Foamglas meet its sustainability commitments. DSR means Foamglas can integrate renewable energy safely into the grid. This allows the business to play an active role in reducing the risk of blackouts during the winter in Belgium when regional peak power demand might not be covered by the available supply.

Why Centrica Business Solutions?

  • Demand Side Response facilitates the further development of renewable energy, lowers the industry’s carbon footprint and helps to curb global climate change.
  • Demand Side Response enables large industrial consumers to reduce their consumption and return power to their local community when power is scarce.
  • Centrica Business Solutions respects pre-set conditions for curtailment. There is no impact on production and high-quality standards are always maintained.


We participate in Demand Side Response programmes to contribute to a more sustainable society.”
Spokesperson, Pittsburgh Corning (parent company of Foamglas)
More case studies

Global leader in life sciences uses fully funded CHP solution to cut CO₂, save costs and gain…

Affinity Water builds on its' net zero plans with over 1.8K solar panels, equalling 16% of its site…

With a trigeneration system from Centrica Business Solutions, the company takes further strides…

Subscribe to Centrica Business Solutions

Sign up to receive regular updates on:

  • Net zero, sustainability, low carbon and renewable energy
  • Insights into our energy solutions and the wider energy market
  • Our latest news, webinars, podcasts and events

By submitting your details you agree to process your personal data by Centrica Business Solutions as described on the Privacy Policy. Centrica Business Solutions will send you a regular newsletter and other marketing material we believe is relevant.  You will be able to opt out of communications from us at any time.