Thermal power plants
Cyclic waste heat to power.
Value. Delivered.
• Capture waste heat from open cycle
gas turbines, or excess heat from cyclic power plant operation.
• Increase energy efficiency by
producing power from heat that would otherwise be wasted.
Integration made easy.
• Unique storage solution designed for integration with high temperature processes.
• Storage has low operational costs due to simplicity, robustness and absence of moving parts.
• Highly modular and scalable solution that can be adapted to local space requirements.
• Solid storage medium capable of withstanding thousands of cycles, with no performance degradation
and extremely long lifespan.
• Efficiency comparable to
conventional combined cycle
systems.
Temperature
up to
OPEN CYCLE GAS TURBINE WASTE HEAT STORAGE
THERMAL OIL
HOT
EXHAUST
GAS
GAS
TURBINE
550°C
1 MWh
to
10 GWh
Up to
99%
thermal
efficiency
www.energy-nest.com
STEAM
STEAM
TURBINE
Unique technology
EnergyNest offers a unique and cost-effective way to store temporarily available
excess heat in power plants. Several options may be considered, depending on
context. One is to store waste heat from open cycle gas turbines. Such turbines
produce exhaust gas flows with temperatures exceeding 400°C. EnergyNest can
store this intermittent thermal energy for continued use in a steam cycle. The
thermal energy storage effectively turns open cycle gas turbines into combined
cycle gas turbines, where the steam turbine is decoupled from the gas turbine,
thereby maintaining flexibility of gas turbine operation while increasing efficiency.
Specific advantages
SMART DESIGN
EASE OF INSTALLATION
EASE OF OPERATION
SCALABLE
ECONOMICAL
SAFE
As a ‘fit-to-purpose’ system, the
storage solution can take any
proportion according to what the
demand for storage requires.
The low-cost materials, including our unique HEATCRETE®
storage medium, ensure
extreme cost competitiveness.
The storage facility is made
up of stable, non-hazardous,
solid-state materials. It entails
no HSE requirements beyond
power plant specifications.
DURABLE
LEGO-LIKE
VERSATILE
The storage system is capable
of withstanding millions of stress
cycles. It has a 50-year lifespan
with practically no performance
degradation.
Our standardized modules
can easily be adapted to
local space and process
requirements.
Caters to a broad range of
temperatures (50° to 550°C) and
operates with both oil and steam
as heat transfer fluids.
STORAGE
DURATION
LOCAL
CONTENT
EASY TO
OPERATE
Best suited for medium to long
storage purposes (3 hours to
several days)
More than 80% of all materials
required for the assembly
of the storage facility can be
procured locally.
The storage facility has no moving
parts, almost no parasitic loads
and requires absolute minimal
maintenance.
EnergyNest AS
Olav Brunborgsvei 6
1396 Billingstad
Norway
post@energy-nest.com
+47 66 77 94 60
www.energy-nest.com