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System and method for alternative power sourcing from green power sources Disclosure Number: IPCOM000234034D
Publication Date: 2014-Jan-08
Document File: 3 page(s) / 26K

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The Prior Art Database


This article relates to alternative power sourcing and intelligent power consumption of power consumer devices in households. Households have different power sources such as the power provided by the power provider and power that is generated from alternative energies such as wind and solar. Let’s consider a household that has two power sources: one source from the power provider and another source from photovoltaic panels installed on top of the roof of the house. The power provided by the power provider my be generated by atomic plants or coal fired power. This power is always available but also expensive. The power generated by the photovoltaic panels (solar power) is generated only when sufficient solar energy is available such as during day time when the sun is shining. However the power generated by this alternate source power is not only for free but it is also "green".

Looking at the power consumer devices in a household - such as washer, dryer, refrigerator, pumps - it becomes obvious that these devices have no notion of consuming power when it is available. Instead these consumers consume power when they need it regardless at how much cost the energy is provided and how "green" this energy is. On the other hand the power provisioning to some power consumer devices can be delayed. For example a washer may not immediately have to start washing. In addition some other household consumer devices have the ability to store energy in order to prevent consuming power when it is expensive and "dirty". For example a refrigerator can be cooled down in order to extend the time frame where it does not require power.

One objective of this system and method is to provide energy to consumers in households when energy is available and efficiently produced. A further objective is to provide consumers methods to consume energy when energy is available at the lowest cost and / lowest carbon oxide emission.

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System and method for alternative power sourcing from green power sources

Figure 1 shows the inventive power generation and consumption system 100:


116 Power generation module 102 generates power and might be represented by a solar power generator or wind power generator according to prior art. The power generation module 102 is coupled via a generator power network 103 to the inventive power management module 104. Further connected to the power management module is the external power network 112 which is sourced by an external power generator 110 such as a nuclear power plant. Power management module 104 makes intelligent decisions according to this idea selecting the power source to be switched on for the power consumer 106 whereby the power is provided via internal power network 108.

In one embodiment each power consumer 106 has a separate consumer power network 108 which allows managing the power supply for each consumer individually. Integrated with the power consumer 106 is a novel power demand module 114. The power demand module is aware of the kind of power consumer and how it consumes power. For example if the power consumer is a refrigerator the power demand module is aware that the refrigerator requires power to cool down and what the temperature tolerances are. The power demand module is coupled via communication network 116 to the power management module 104 in order to provide the power management module 104 with information about the power demands of the consumer 106. In one embodiment the communication network 116 is provided over the internal power network 108 through power line communication according to prior art.

The novel power management module 104 in conjunction with the novel power demand module 114 provides a method to over-provision the power consumer 106 with power supplied by the internal power generator 102 which is characterized by the following steps:

- The consumer 106 requires power and informs the integrated power demand module 114
- The power demand module 114 determines power demand information from the

consumer 106 including the time period T1 within said consumer requires the power, the

duration T2 for the power consumption and the total amount of power P1 required

- The power demand module 114 determines if the consumer 106 can tolerate more power supply than actually required and responsive to this calculates an offset O1 indicating the additional power and duration for power supply.

- The power demand module 114 sends this power demand information (T1, T2, P1 and O1) to the power management module 104 via network 116

- Responsive to this the power management module calculates the projected power









102 Internal power generator 103 power generator network 104 Power management module 106 consumer
108 consumer power network 110 external power generator 112 external power network
114 Power demand module
116 Communication network


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consumption P2 based...