Diesel-PV Hybrid System Without Battery Storage - Revision history

Wiki Gardener: Wiki Gardener moved page Hybrid Systems to Diesel-PV Hybrid System Without Battery Storage without leaving a redirect

2014-11-18T06:27:43Z

Wiki Gardener moved page Hybrid Systems to Diesel-PV Hybrid System Without Battery Storage without leaving a redirect

Ranisha at 14:10, 16 July 2014

2014-07-16T14:10:54Z

Wiki Gardener at 08:58, 11 March 2013

2013-03-11T08:58:03Z

Wiki Gardener: Wiki Gardener moved page MES Conference 2013 - session hybrid systems to Hybrid Systems

2013-03-09T11:22:08Z

Wiki Gardener moved page MES Conference 2013 - session hybrid systems to Hybrid Systems

Wiki Gardener: /* Further Information */

2013-03-09T11:21:21Z

‎Further Information

Wiki Gardener at 11:20, 9 March 2013

2013-03-09T11:20:03Z

Wiki Gardener at 11:16, 9 March 2013

2013-03-09T11:16:38Z

Sebastian Muschik: Created page with " = Hybrid systems = == Diesel-PV Hybrid system without battery storage == In the presentations of Daniel Yamegueu and David Tsuanyo from the [[:File:http://www.2ie-edu.org|I..."

2013-03-06T13:30:17Z

Created page with " = Hybrid systems = == Diesel-PV Hybrid system without battery storage == In the presentations of Daniel Yamegueu and David Tsuanyo from the [[:File:http://www.2ie-edu.org|I..."

New page

= Hybrid systems =

== Diesel-PV Hybrid system without battery storage ==

In the presentations of Daniel Yamegueu and David Tsuanyo from the [[:File:http://www.2ie-edu.org|International Institute for Water and Environmental Engineering]] their “flexy energy” concept was presented. It consists of small solar systems with a single phase inverter and a number of small sized diesel generators, which can be switched on and off depending on the load and solar production. The generator(s) load is kept in the optimal load range of 70% to 80% by the management system. It can be stretched to 60-90%.

Technical data of the existing testing plant :
*One Diesel generator 9.2 kW
*PV modules with 2.85 kWp and a single phase inverter of 3.3kW
*Two resistive load banks of 4kW each

<br/>

Although the inverter is feeding into only one phase the voltage of this phase is kept in the tolerable range of plus 10% as in the norm stated. Also harmonic current and voltage distortions are not significantly higher. Current harmonic distortions are 0.8 percentage points higher, voltage distortion are maximum one percentage point higher.

Due to the PV system and load shifting of e.g. water pumping systems the generator size could be reduced from 13kW to 9kW. A challenge is the needed in time consumption. But dispatchable loads can be used as storage if there is more production than consumption.

The approach is made to lower the initial costs and avoid batteries due to the lack of battery recycling structures in Burkina Faso. In usual Diesel-PV-Battery system the battery costs are up to 40% of the system costs. As the system is flexible designed batteries can be added later if wished. Through load shifting of dispatchable huge consumers as water tower pumps the generator size was reduced from 13kW to 9.2kW. In the discussion was questioned if this system is lowering the costs of electricity compared to an optimized PV-battery-Diesel hybrid system. Overall an electricity price reduction of around 2.7% is achieved by the system.

<br/>

<br/>

Catherina Cader from the [[:File:http://www.reiner-lemoine-institut.de|Reiner Lemoine Institute]] presented results of a study about the global cost advantages of stand-alone small-scale hybrid PV-Battery-Diesel Systems. The national diesel price is taken into account as well as transport costs via the remoteness of the places defined as travel time to the next major settlement. Together with further data a price optimized PV-Battery-Diesel system for each location is designed.
*PV system: 2000€/kWp
*Battery system: 120€/kWh
*Interest rate: 8%
*Generator efficiency: 0.33l/kWhel
*Operational expenditure: 0.02kWhel

In the discussion was pointed out that the prices are significantly depending on the assumed size of the system. Larger systems has lower costs.

The electricity generation price is compared between this hybrid system and a pure diesel generator. Resulting is the price advantage of hybrid systems in areas with high diesel prices and/or high remoteness better and the share of renewables higher. In countries with high diesel subsidies there are no or only low cost savings by installing hybrid systems. That means diesel subsidies destroys business cases for renewable energies.

@@ Line 2: / Line 2: @@
 = Overview =
-The following article details the proceedings of the [https://energypedia.info/wiki/Micro_Perspectives_for_Decentralized_Energy_Supply_-_Conference_2013 Micro Perspectives for Decentralized Energy Supply Conference - 2013].
+The following article details the proceedings of the [[Micro_Perspectives_for_Decentralized_Energy_Supply_-_Conference_2013|Micro Perspectives for Decentralized Energy Supply Conference - 2013]].
 <br/>
-= <span style="font-size: 19px;  line-height: 23px">Diesel-PV Hybrid System Without Battery Storage</span> =
+= <span style="font-size: 19px; line-height: 23px">Diesel-PV Hybrid System Without Battery Storage</span> =
 In the presentations of Daniel Yamegueu and David Tsuanyo from the [http://www.2ie-edu.org/?lang=en International Institute for Water and Environmental Engineering] their “flexy energy” concept was presented. It consists of small solar systems with a single phase inverter and a number of small sized diesel generators, which can be switched on and off depending on the load and solar production. The generator(s) load is kept in the optimal load range of 70% to 80% by the management system. It can be stretched to 60-90%.
@@ Line 50: / Line 50: @@
 = <span id="Further_Information" class="mw-headline">Further Information</span> =
-*More information can be found at [https://energypedia.info/wiki/Micro_Perspectives_for_Decentralized_Energy_Supply_-_Conference_2013 Micro Perspectives for Decentralized Energy Supply Conference - 2013]<br/>
+*More information can be found at [[Micro_Perspectives_for_Decentralized_Energy_Supply_-_Conference_2013|Micro Perspectives for Decentralized Energy Supply Conference - 2013]]<br/>
 <br/>
@@ Line 58: / Line 58: @@
 <references /><br/>
 [[Category:Hybrid_Systems]]

@@ Line 6: / Line 6: @@
 <br/>
-= <span style="font-size: 19px; line-height: 23px;">Diesel-PV Hybrid System Without Battery Storage</span> =
+= <span style="font-size: 19px;  line-height: 23px">Diesel-PV Hybrid System Without Battery Storage</span> =
 In the presentations of Daniel Yamegueu and David Tsuanyo from the [http://www.2ie-edu.org/?lang=en International Institute for Water and Environmental Engineering] their “flexy energy” concept was presented. It consists of small solar systems with a single phase inverter and a number of small sized diesel generators, which can be switched on and off depending on the load and solar production. The generator(s) load is kept in the optimal load range of 70% to 80% by the management system. It can be stretched to 60-90%.
@@ Line 12: / Line 12: @@
 <br/>
-Technical data of the existing testing plant :
+<u>Technical data of the existing testing plant:</u>
 *One Diesel generator 9.2 kW
 *PV modules with 2.85 kWp and a single phase inverter of 3.3kW
@@ Line 48: / Line 48: @@
 <br/>
-= <span class="mw-headline" id="Further_Information">Further Information</span> =
+*More information can be found at [https://energypedia.info/wiki/Micro_Perspectives_for_Decentralized_Energy_Supply_-_Conference_2013 Micro Perspectives for Decentralized Energy Supply Conference - 2013]<br/>
-−
 More information can be found at [https://energypedia.info/wiki/Micro_Perspectives_for_Decentralized_Energy_Supply_-_Conference_2013 Micro Perspectives for Decentralized Energy Supply Conference - 2013]<br/>
 = References =
@@ Line 58: / Line 58: @@
 <references /><br/>
 [[Category:Conference_Documentation]]

@@ Line 47: / Line 47: @@
 <br/>
 = <span class="mw-headline" id="Further_Information">Further Information</span> =
-<span style="line-height: 1.5em; font-size: 0.85em;">More information can be found at </span>[https://energypedia.info/wiki/Micro_Perspectives_for_Decentralized_Energy_Supply_-_Conference_2013 Micro Perspectives for Decentralized Energy Supply Conference - 2013]<span style="line-height: 1.5em; font-size: 0.85em;">.</span>
+More information can be found at [https://energypedia.info/wiki/Micro_Perspectives_for_Decentralized_Energy_Supply_-_Conference_2013 Micro Perspectives for Decentralized Energy Supply Conference - 2013]<br/>
 = References =

@@ Line 8: / Line 8: @@
 = <span style="font-size: 19px; line-height: 23px;">Diesel-PV Hybrid System Without Battery Storage</span> =
-In the presentations of Daniel Yamegueu and David Tsuanyo from the [[:File:http://www.2ie-edu.org|International Institute for Water and Environmental Engineering]] their “flexy energy” concept was presented. It consists of small solar systems with a single phase inverter and a number of small sized diesel generators, which can be switched on and off depending on the load and solar production. The generator(s) load is kept in the optimal load range of 70% to 80% by the management system. It can be stretched to 60-90%.
+In the presentations of Daniel Yamegueu and David Tsuanyo from the [http://www.2ie-edu.org/?lang=en International Institute for Water and Environmental Engineering] their “flexy energy” concept was presented. It consists of small solar systems with a single phase inverter and a number of small sized diesel generators, which can be switched on and off depending on the load and solar production. The generator(s) load is kept in the optimal load range of 70% to 80% by the management system. It can be stretched to 60-90%.
 <br/>
@@ Line 31: / Line 31: @@
 <br/>
-Catherina Cader from the [[:File:http://www.reiner-lemoine-institut.de|Reiner Lemoine Institute]] presented results of a study about the global cost advantages of stand-alone small-scale hybrid PV-Battery-Diesel Systems. The national diesel price is taken into account as well as transport costs via the remoteness of the places defined as travel time to the next major settlement. Together with further data a price optimized PV-Battery-Diesel system for each location is designed.
+Catherina Cader from the [http://www.reiner-lemoine-institut.de Reiner Lemoine Institute] presented results of a study about the global cost advantages of stand-alone small-scale hybrid PV-Battery-Diesel Systems. The national diesel price is taken into account as well as transport costs via the remoteness of the places defined as travel time to the next major settlement. Together with further data a price optimized PV-Battery-Diesel system for each location is designed.
 *PV system: 2000€/kWp
 *Battery system: 120€/kWh
@@ Line 54: / Line 54: @@
 <br/>
-= <span class="editsection" style="margin-left: 5px; font-size: 13px;">[]</span><span class="mw-headline" id="References">References</span> =
+= References =
 [[Category:Hybrid_Systems]]

@@ Line 1: / Line 1: @@
-= Hybrid systems =
+= Overview =
-== Diesel-PV Hybrid system without battery storage ==
+The following article details the proceedings of the [https://energypedia.info/wiki/Micro_Perspectives_for_Decentralized_Energy_Supply_-_Conference_2013 Micro Perspectives for Decentralized Energy Supply Conference - 2013].
 In the presentations of Daniel Yamegueu and David Tsuanyo from the [[:File:http://www.2ie-edu.org|International Institute for Water and Environmental Engineering]] their “flexy energy” concept was presented. It consists of small solar systems with a single phase inverter and a number of small sized diesel generators, which can be switched on and off depending on the load and solar production. The generator(s) load is kept in the optimal load range of 70% to 80% by the management system. It can be stretched to 60-90%.
 Technical data of the existing testing plant :
@@ Line 14: / Line 20: @@
 Although the inverter is feeding into only one phase the voltage of this phase is kept in the tolerable range of plus 10% as in the norm stated. Also harmonic current and voltage distortions are not significantly higher. Current harmonic distortions are 0.8 percentage points higher, voltage distortion are maximum one percentage point higher.
 Due to the PV system and load shifting of e.g. water pumping systems the generator size could be reduced from 13kW to 9kW. A challenge is the needed in time consumption. But dispatchable loads can be used as storage if there is more production than consumption.
 The approach is made to lower the initial costs and avoid batteries due to the lack of battery recycling structures in Burkina Faso. In usual Diesel-PV-Battery system the battery costs are up to 40% of the system costs. As the system is flexible designed batteries can be added later if wished. Through load shifting of dispatchable huge consumers as water tower pumps the generator size was reduced from 13kW to 9.2kW. In the discussion was questioned if this system is lowering the costs of electricity compared to an optimized PV-battery-Diesel hybrid system. Overall an electricity price reduction of around 2.7% is achieved by the system.
 <br/>
@@ Line 29: / Line 37: @@
 *Generator efficiency: 0.33l/kWhel
 *Operational expenditure: 0.02kWhel
 In the discussion was pointed out that the prices are significantly depending on the assumed size of the system. Larger systems has lower costs.
 The electricity generation price is compared between this hybrid system and a pure diesel generator. Resulting is the price advantage of hybrid systems in areas with high diesel prices and/or high remoteness better and the share of renewables higher. In countries with high diesel subsidies there are no or only low cost savings by installing hybrid systems. That means diesel subsidies destroys business cases for renewable energies.