iGRID Temperature Optimiser

Lower temperatures and reduce heat loss based on real-time data

Supply temperatures are typically set and adjusted according to heat demands expectations.

The Grundfos iGRID Temperature Optimiser provides optimal temperature control based on actual weather conditions, peak shaving algorithms and real-time pressure data.

Did you know that optimising the supply temperature can substantially reduce heat loss?

The iGRID Temperature Optimiser is a controller with a software package that optimises the supply temperature according to the actual heat demand and weather conditions – either for the grid or a specific zone. In contrast to a traditional ‘experience-based’ setup, the iGRID Temperature Optimiser can often reduce the heat loss in the grid by 20% or more.  

Thus, the highest efficiency and the highest consumer comfort are ensured!

Optimal temperature control based on real-time demand

Every minute data is delivered to the iGRID Temperature Optimiser and to the SCADA system. Based on this data, you have the opportunity to adjust the pump speed and therefore optimise the heat distribution according to the real-time demand. 


Water loss

Globally an average of 30% of all pumped water never reaches the tap. In cities the average is even higher and can reach 60%. This water is lost due to both leakages and theft. A few examples of non-revenue water (NRW) per country are: United Kingdom 21%, Mexico 40%, United States 20%, Sweden 40%, Liberia 49%, Armenia 89%, China 21% and Venezuela 62%.

Source: Quantifying the global non-revenue water problem, R. Liemberger and A. Wyatt

Water demand

Today, more than 2 billion people are living with the risk of reduced access to freshwater sources. By 2050 the global water demand could be 30% higher than it is today. 

Sources: United Nations Sustainable Development Goal 6, UNWD Report 2018


By 2050, an additional 2.5 billion people are expected to live in cities, which accounts for 70% of the population. 90% of this increase is expected to take place in Africa and Asia.

Source: United Nations Department of Economic and Social Affairs

Solutions in action

Although cities around the world are under a lot of pressure, there are intelligent solutions available for better, more efficient, more sustainable water management. Some of these solutions are already in action, like water treatment, water reuse and demand-driven distribution which is ensuring optimal water pressure and flow and minimising pipe bursts for towns and cities all over the globe.

Ningbo doses safely and accurately for 1.5 million citizens

10 years ago, a lake water plant in the Chinese city of Ningbo needed help pumping the dangerous compound sodium hypochlorite. Today, the Grundfos dosing pumps implemented are still going strong and guaranteeing safe water for 1.5 million citizens. 

Water plant enjoys 20% energy + water savings 

In the Cambodian province of Takéo, a water supply company was struggling to supply drinking water to the small city of Doun Kaev and the surrounding 45 villages. After teaming up with Grundfos, an intelligent demand driven water supply solution solved the problem and cut water losses by 13% and pipe bursts by 29% giving villagers reliable water supply 24/7.

Pump gates bring new flow to Fuzhou’s rivers

Fuzhou, a large city in China, has had problems with dirty, odorous water in its rivers and canals for decades. A series of Grundfos pump gates brought flow once again to the water. This solution eradicated the smelly, polluted water, creating a better living environment along the populated riversides.

Want to learn more?

In order to make a positive change, we must act now. Visit the links below for further learning, including exploring current solutions for buildings as well as Grundfos intelligent pump solutions. 

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