Hybrid systems

The Concept:

Modern Wind Turbine Generators has become world wide recognized as an economical

alternative to conventional electrical power generation.

However, so far the wind turbines have only been operative, connected to large

and stiff electrical grids, which control the frequency and voltage.

The new Wind/Diesel hybrid technology opens for a possibility to utilize

the renewable energy source in remote isolated areas,

where the grid structure is weak,  insufficient or even not existing,

and the cost of energy often constitutes a considerable part of the local economy.

In order to obtain an uninterrupted power supply, utilizing wind energy,

it is necessary to be connected to a diesel generator back-up system,

which will take over when the production from the wind turbines are insufficient,

to cover the grid demand, thus securing 100% supply.

The wind turbines are virtually always connectable to existing diesel generator sets. The new Wind/Diesel concept, allows the size of the wind turbine

generators to exceed the size of the diesel generators.

The maximum fuel saving is achieved by declutching and stopping the diesel engine, when the wind energy is exceeding the grid consumption.

Hereby the total demand is covered by energy from the wind turbines alone.

The Wind/Diesel technology takes advantage in using the standard control systems, implemented with modern diesel generators that control the voltage and frequency, even with the diesel engine stopped or idling.

If the energy production from the wind turbines is higher than the grid demand,

the frequency is controlled by the use of a dump-load.

The dump-load can utilize the excessive wind energy for a numerous purposes.

To list a few, excessive wind energy can be utilized as free energy for

"Fresh drinking water production by desalination sea water", for "Cold Stores",

for "Ice production used by fishing vessels", for "fish farming" etc.

Fresh drinking water production can even become the main issue of the plant,

with electrical power generation as a spin-off.

The Wind/Diesel concept is build‑up by functional blocks, easy to combine

into a complete system suitable for the required purpose.

All functional blocks are delivered as packages in standard containers.

Using standard components and well known technology for all the important functions has resulted in a simple, robust and extremely

reliable system which is easy to operate and maintain.
The Danvest system is ideal for operation in isolated

and remote areas with wind conditions suitable for wind turbines.

Wind/diesel/desalination power systems

The Danvest system is designed to be extended with fresh water

production by desalination of sea water.

The distillers operate by consuming all the excess heat and surplus wind power.
When fresh water production is the primary function the system is supplemented with a low-energy fresh water system which uses only electricity.

When fresh water production is the primary function the system is supplemented with a low-energy fresh water system which uses only electricity.

Erection in 7 days

After 14 days the station is connected,

tested and ready for operation

OUR PARTNER:

Danvest Energy A/S

http://www.danvest.com/

Danvest Energy has developed an entirely new control system

that controls stand alone wind/diesel operation with high wind penetration.

Block diagram showing the interface with the electrity grid and with wind turbines

Existing diesel power stations

Where an existing diesel power station is wanted to be integrated to as large

an extend as possible, Danvest Energy has designed applications

for converting an existing diesel power station to wind/diesel operation.

The existing diesel power station has to meet our demands and specifications. The fuel saving compared to the optimal and complete wind/diesel solution will not be at it´s optimum because the existing diesel engine

is not allowed to operate below 20 - 30% of full load.

Patent

Vital parts of the Danvest system are protected by a world-wide patent.
Using standard components and well known technology for all the important functions has resulted in a simple, robust and extremely reliable system

which is easy to operate and maintain.

The Danvest system is ideal for operation in isolated and remote areas

with wind conditions suitable for wind turbines.

Danvest Energy designs the total and most optimal solution and delivers complete stand alone wind/diesel power stations ready for connection and operation.

Standard Danvest wind/diesel/desalination power station

The full Danvest Energy program
Wind/diesel power stations
Wind/diesel/desalination power stations
Diesel power stations
Diesel/desalination power stations
Dump-load for load management

The standard products can be combined or extended.
Stations with fresh water bottling unit
Stations with power for central heating
Stations with flake ice production
Stations with cold-storage
Stations for water pumping
Feeder sub-station

Small Danvest wind/diesel/desalination power station in 40 foot container

All the necessary spare parts and tools are placed in containers

for normal container transport.

The stations are delivered in 20 foot and 40 foot standard containers

and the complete stations are build of container modules:

Generator module, service module and office/store module.
Small stations up to 200 kW are delivered in a single container.

In this way, erection on site and connection to external systems can be carried out easily and quickly. Included in the delivery of comprehensive introduction, service manuals and the training of local operating and service staff.
In the planing stages Danvest Energy supplies the necessary drawings and measurements for the customer to design the foundations

and prepare the external connections.

Wind turbines are not part of the Danvest Energy delivery.

The wind turbines are standard wind turbines delivered by wind turbine manufactures. All the necessary spare parts and tools are placed in containers for normal container transport. The stations are delivered in 20 foot and 40 foot standard containers and the complete stations are build of container modules:
Generator module, service module and office/store module

.
Small stations up to 200 kW are delivered in a single container.

In this way, erection on site and connection to external systems can be carried out easily and quickly. Included in the delivery of comprehensive introduction, service manuals and the training of local operating and service staff.

In the planing stages Danvest Energy supplies the necessary drawings and measurements for the customer to design the foundations and prepare the external connections.

Wind turbines are not part of the Danvest Energy delivery. The wind turbines are standard wind turbines delivered by wind turbine manufactures.

Power capacity

Fresh water capacity

The capacity of fresh water production is dependent on the choice

of desalination concept.

7 - 100 m3/24h at low performance
50 - 1000 m3/24h at high performance

Efficient delivery

The delivery is ex works with all the installations completed and tested at the factory.