Engineering Recommendation G99 - Revision history

Editor at 17:56, 20 January 2022

2022-01-20T17:56:01Z

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	* Energy Networks Association, [https://www.energynetworks.org/assets/images/Resource%20library/ENA_EREC_G99_Issue_1_Amendment_6_(2020).pdf Engineering Recommendation G99 Issue 1 – Amendment 6 09 March 2020].		* Energy Networks Association, [https://www.energynetworks.org/assets/images/Resource%20library/ENA_EREC_G99_Issue_1_Amendment_6_(2020).pdf Engineering Recommendation G99 Issue 1 – Amendment 6 09 March 2020].
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		+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Regulation]] [[Category:Definitions]] [[Category:Regulations]] [[Category:Products_/_components]]

Designing Buildings at 07:18, 18 January 2022

2022-01-18T07:18:11Z

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	= Changes brought about by EREC 99 =		= Changes brought about by EREC 99 =

−	~~By replacing EREC G59,~~ EREC 99 established more stringent operating parameters for all new generation equipment 1MW (or larger) that would be connected to public distribution networks of licensed Distribution Network Operators (DNOs). It also changed the application process for this type of equipment and put new compliance and commissioning requirements in place.	+	EREC 99 established more stringent operating parameters for all new generation equipment 1MW (or larger) that would be connected to public distribution networks of licensed Distribution Network Operators (DNOs). It also changed the application process for this type of equipment and put new compliance and commissioning requirements in place.

−	Under EREC G99, this type of equipment must provide frequency response in either Limited Frequency Sensitive Mode (LFSM) or Frequency Sensitive Mode (FSM) to control ~~its~~ active power output in response to frequency changes on the grid.	+	Under EREC G99, this type of equipment must provide frequency response in either Limited Frequency Sensitive Mode (LFSM) or Frequency Sensitive Mode (FSM) to control active power output in response to frequency changes on the grid.

	Generators over 1MW must also include:		Generators over 1MW must also include:

Editor at 12:10, 17 January 2022

2022-01-17T12:10:41Z

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	= Changes brought about by EREC 99 =		= Changes brought about by EREC 99 =

−	~~The purpose of~~ EREC 99 ~~was to establish~~ more stringent operating parameters for all new generation equipment 1MW (or larger) that would be connected to public distribution networks of licensed Distribution Network Operators (DNOs). It ~~was~~ also ~~responsible for changing~~ the application process for this equipment ~~as well as putting~~ new compliance and commissioning requirements in place.	+	By replacing EREC G59, EREC 99 established more stringent operating parameters for all new generation equipment 1MW (or larger) that would be connected to public distribution networks of licensed Distribution Network Operators (DNOs). It also changed the application process for this type of equipment and put new compliance and commissioning requirements in place.

−	Under EREC G99, this equipment must ~~now~~ provide frequency response in either Limited Frequency Sensitive Mode (LFSM) or Frequency Sensitive Mode (FSM) to control ~~their~~ active power output in response to frequency changes on the grid.	+	Under EREC G99, this type of equipment must provide frequency response in either Limited Frequency Sensitive Mode (LFSM) or Frequency Sensitive Mode (FSM) to control its active power output in response to frequency changes on the grid.

	Generators over 1MW must also include:		Generators over 1MW must also include:

Editor at 10:02, 17 January 2022

2022-01-17T10:02:43Z

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		+	= Introduction =
		+
	[https://www.energynetworks.org/assets/images/Resource%20library/ENA_EREC_G99_Issue_1_Amendment_6_(2020).pdf Engineering Recommendation G99], or EREC G99, was issued by the Energy Networks Association (ENA) in July 2018 and came into effect on 27 April 2019. It applies to organisations involved in developing generation projects that are connected to the grid. It also affects how different types or configurations of equipment must comply with the requirements.		[https://www.energynetworks.org/assets/images/Resource%20library/ENA_EREC_G99_Issue_1_Amendment_6_(2020).pdf Engineering Recommendation G99], or EREC G99, was issued by the Energy Networks Association (ENA) in July 2018 and came into effect on 27 April 2019. It applies to organisations involved in developing generation projects that are connected to the grid. It also affects how different types or configurations of equipment must comply with the requirements.

−	After 27 April 2019, ~~it was no~~ longer ~~legal~~ to connect certain types of power generation equipment that was solely compliant with G59.	+	EREC G99 was published by the ENA to replace EREC G59. After 27 April 2019, organisations were longer legally permitted to connect certain types of power generation equipment that was solely compliant with G59.
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		+	= Changes brought about by EREC 99 =

−	EREC ~~G99 was published by the ENA to replace EREC G59. Its purpose~~ was to establish more stringent operating parameters for all new generation equipment 1MW (or larger) that would be connected to public distribution networks of licensed Distribution Network Operators (DNOs). It was also responsible for changing the application process for this equipment as well as putting new compliance and commissioning requirements in place.	+	The purpose of EREC 99 was to establish more stringent operating parameters for all new generation equipment 1MW (or larger) that would be connected to public distribution networks of licensed Distribution Network Operators (DNOs). It was also responsible for changing the application process for this equipment as well as putting new compliance and commissioning requirements in place.

	Under EREC G99, this equipment must now provide frequency response in either Limited Frequency Sensitive Mode (LFSM) or Frequency Sensitive Mode (FSM) to control their active power output in response to frequency changes on the grid.		Under EREC G99, this equipment must now provide frequency response in either Limited Frequency Sensitive Mode (LFSM) or Frequency Sensitive Mode (FSM) to control their active power output in response to frequency changes on the grid.

Editor: Created page with "[https://www.energynetworks.org/assets/images/Resource%20library/ENA_EREC_G99_Issue_1_Amendment_6_(2020).pdf Engineering Recommendation G99], or EREC G99, was issued by the Energ..."

2022-01-14T16:25:10Z

Created page with "[https://www.energynetworks.org/assets/images/Resource%20library/ENA_EREC_G99_Issue_1_Amendment_6_(2020).pdf Engineering Recommendation G99], or EREC G99, was issued by the Energ..."

New page

[https://www.energynetworks.org/assets/images/Resource%20library/ENA_EREC_G99_Issue_1_Amendment_6_(2020).pdf Engineering Recommendation G99], or EREC G99, was issued by the Energy Networks Association (ENA) in July 2018 and came into effect on 27 April 2019. It applies to organisations involved in developing generation projects that are connected to the grid. It also affects how different types or configurations of equipment must comply with the requirements.

After 27 April 2019, it was no longer legal to connect certain types of power generation equipment that was solely compliant with G59.

EREC G99 was published by the ENA to replace EREC G59. Its purpose was to establish more stringent operating parameters for all new generation equipment 1MW (or larger) that would be connected to public distribution networks of licensed Distribution Network Operators (DNOs). It was also responsible for changing the application process for this equipment as well as putting new compliance and commissioning requirements in place.

Under EREC G99, this equipment must now provide frequency response in either Limited Frequency Sensitive Mode (LFSM) or Frequency Sensitive Mode (FSM) to control their active power output in response to frequency changes on the grid.

Generators over 1MW must also include:

* Fault ride through to keep them connected when there are significant voltage depressions due to faults on the grid.
* Fast fault current injection to support the system during a fault by quickly injecting reactive current in order to keep the grid voltage from dropping too low.
* Voltage control systems that can inject or absorb reactive power into the grid to control voltage.
* Enhanced variable reactive power capabilities.
* Testing and protection capabilities previously handled by large grid code compliant power stations.

= Related articles on Designing Buildings =

* Microgeneration for buildings
* Power generation
* Power supply.
* Smoothing the path to net zero.
* The future of UK power generation.

= External resources =

* Energy Networks Association, [https://www.energynetworks.org/assets/images/Resource%20library/ENA_EREC_G99_Issue_1_Amendment_6_(2020).pdf Engineering Recommendation G99 Issue 1 – Amendment 6 09 March 2020].