RECYCLING OF HEAT IN WASTE WATER

Lower energy costs, improved net operating income and maximum climate benefit

In the energy-smart properties of the future, the need for purchased energy is minimized. This is when the energy costs can be cut substantially and provide a greater cash flow for the property owner and at the same time provide maximum climate benefit. Evertherm's system solution recycles at least 90% of the energy supplied for heating the hot water in a property.

With the Evertherm system, the warm waste water from the sewage stem, via a pump pit, is directed to accumulator tanks where it is collected. The heat energy in the water is extracted via a maintenance-free polymer heat exchanger adapted for aggressive environments. Once the energy is extracted, the waste water is flushed out into the drain and then has the same temperature as the incoming cold water, which complies with the applicable regulations. The heat energy recovered is returned to the property by heating the domestic hot water and homes. Energy is also supplied to the waste water via external sources of electricity such as washing machines and dishwashers. This energy is returned to the property's energy system, to circulate in a cycle 10 to 20 times before leaving the property.

Benefits in brief

Minimizes greenhouse gas emissions

High reliability with minimal maintenance

Green finance

Guaranteed energy savings reduce risk

Unrivalled recycling of energy

See more benefits

Better net operating income

Overall system description

1
Pump pit
Tugger pump atomizes the waste water and forwards it into a buffer tank. Ensures sewage function via overflow control.
2
Buffer tank
Smooths the flow variations.
Enables optimal energy utilization.
3
Collector tank
Contains energy collectors for handover of energy to heat pump.
4
Heat pump and accumulator tanks
Adapted and optimized towards the property for the best energy performance.
5
Control and optimization
Measures, controls and regulates temperatures, levels and flows to optimize energy recovery from the waste water.
1
Pump pit
Tugger pump atomizes the waste water and forwards it into a buffer tank. Ensures sewage function via overflow control.
2
Buffer tank
Smooths the flow variations.
Enables optimal energy utilization.
3
Collector tank
Contains energy collectors for handover of energy to heat pump.
4
Heat pump and accumulator tanks
Adapted and optimized towards the property for the best energy performance.
5
Control and optimization
Measures, controls and regulates temperatures, levels and flows to optimize energy recovery from the waste water.

4 steps to an energy-smart property

We help you all the way to a profitable solution – from sizing to operation and maintenance.

1
dimensioning

When our customer is planning a construction project, we conduct a dialogue about dimensioning an Evertherm system. The customer will give us a number of basic parameters, after which we will reconnect with suggestions for a solution.

2
Design

In the next step, a designer draws the Evertherm system into plans/drawings. Evertherm assists with expertise that enables the right decisions regarding placement, ground work, etc.

3
installation

Through its own installation efforts and partners, Evertherm offers installation of our system solutions. We coordinate the installation work with the customer's other contractors for an efficient installation as part of the property as a whole. We work with local partners and subcontractors for efficiency and local presence.

4
Operation & Maintenance

Evertherm's system solutions have a high reliability with minimal maintenance. Evertherm undertakes annual review and maintenance if service agreements are signed. Otherwise, we are available for advice.

Smart governance via the cloud

Evertherm's system solutions include an integrated automation system that ensures safe operation and maximizes energy recovery. Reliability is always in focus, which is why it is possible to monitor pumps and other critical equipment in real time. Information is available on fluid levels, temperatures and operating times, data that can also be followed up historically. The pumps that are used are customized to make the solution reliable.

Energy recovery is optimized by adapting operations to the actual possibilities of delivery in each application. For example, the heat pump can be controlled to run on solar electricity in cases where it is most advantageous. Energy storage allows for reduced power peaks, not only in accumulator tanks on the warm side, but also in the buffer tanks on the cold side. A special app makes visible and documents the energy and climate benefits for the property owner and those who use the property.

Design Help

Evertherm offers the design of system solutions for both new production and remodeling projects for energy efficiency of properties. The design concerns the parts required for the pipe, electrical and control installation of Evertherm's products and the integration with the property's other energy systems, such as geoenergy and district heating.

Service agreements and warranties

Evertherm offers functional warranty and service agreements as an option in connection with the installation of the company's system solutions. The service agreement includes annual review, operational monitoring and troubleshooting. The functional guarantee refers to the recovery achieved in relation to the planned ditto, where the customer is responsible for the values received in connection with the dimensioning of the installation.

The deal with Evertherm

General terms and conditions
AB04 or ABT06
Product warranty
2 year product, 5 years work
Total ownership
Property owner/total contractor; Evertherm is responsible for handing over to the warm side
installation
Evertherm + subcontractor
Service contract
Optional
Functional guarantee
Included in service agreements
financing
Optional, requires functional guarantee
CASE STUDIES
"From energy performance and future energy requirements, Evertherm is a very interesting product. Thanks to the high efficiency and energy efficiency, good energy performance of the building with low primary energy is achieved."
Mats Andersson
Business Developer, Skanska Sweden

Reference projects