| Interfacing of renewable energy or distributed power sources to up to 400 VDC power feeding systems |
 |
The up to 400 volt DC (VDC) power solutions feeding the power interface of ICT/telecom equipment as defined by the ITU-T L.1200 series, are well adapted to the straightforward use of renewable energy or distributed power sources through new simple direct current (DC) nano or micro grids. Recommendation ITU-T L.1205 defines the coupling of local or remote renewable energy into an up to 400 VDC power system without reducing DC performances defined in Recommendation ITU-T L.1202 mainly for efficiency and reliability. The main advantages are saving of fossil fuel (as a source of primary energy consumption), reduction of greenhouse gas (GHG) emissions and increased resilience. Additional site interconnection by a DC grid can even bring more optimization. One other big benefit is that compared to alternating current (AC), with 400 VDC there is no synchronization required between the various inputs, which keeps the architecture simple. |
|
| Citation: |
https://handle.itu.int/11.1002/1000/13144 |
| Series title: |
L series: Environment and ICTs, climate change, e-waste, energy efficiency; construction, installation and protection of cables and other elements of outside plant
L.1200-L.1299: Power feeding and energy storage |
| Approval date: |
2016-12-14 |
| Identical standard: | ETSI ES 203 474 (Twinned) |
| Provisional name: | L.renewable |
| Approval process: | AAP |
|
Status: |
In force |
|
Maintenance responsibility: |
ITU-T Study Group 5 |
|
Further details: |
Patent statement(s)
Development history
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|
| Ed. |
ITU-T Recommendation |
Status |
Summary |
Table of Contents |
Download |
|
1
|
L.1205 (12/2016)
|
In force
|
here
|
here
|
here
|
|
|
|
ITU-T Supplement
|
Title
|
Status
|
Summary
|
Table of contents
|
Download
|
|
L Suppl. 4 (04/2016)
|
Guidelines for developing a sustainable e-waste management system
|
In force
|
here
|
here
|
here
|
|
L Suppl. 5 (12/2014)
|
Life-cycle management of ICT goods
|
In force
|
here
|
here
|
here
|
|
L Suppl. 20 (10/2015)
|
Green public ICT procurement
|
In force
|
here
|
here
|
here
|
|
L Suppl. 21 (04/2016)
|
Implementation guidance for small- and medium-sized enterprises on information and communication technology supply chain due diligence concerning conflict minerals
|
In force
|
here
|
here
|
here
|
|
L Suppl. 27 (10/2016)
|
Supplement on success stories on e-waste management
|
In force
|
here
|
here
|
here
|
|
L Suppl. 28 (10/2016)
|
Circular economy in information and communication technology; definition of approaches, concepts and metrics
|
In force
|
here
|
here
|
here
|
|
L Suppl. 32 (10/2016)
|
Supplement for eco-specifications and rating criteria for mobile phones eco-rating programmes
|
In force
|
here
|
here
|
here
|
|
L Suppl. 33 (10/2016)
|
Assessment of energy consumption of information and communication technology services
|
In force
|
here
|
here
|
here
|
|
L Suppl. 41 (05/2021)
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Requirements on energy efficiency measurement models and the role of artificial intelligence and big data
|
In force
|
here
|
here
|
here
|
|
L Suppl. 42 (05/2021)
|
Guidelines on the environmental efficiency of machine learning processes in supply chain management
|
In force
|
here
|
here
|
here
|
|
L Suppl. 43 (05/2021)
|
Smart energy saving of 5G base stations: Traffic forecasting and strategy optimization of 5G wireless network energy consumption based on artificial intelligence and other emerging technologies
|
In force
|
here
|
here
|
here
|
|
L Suppl. 44 (05/2021)
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Guidelines on best practices and environment friendly policies for effective information and communication technology deployment methods
|
In force
|
here
|
here
|
here
|
|
L Suppl. 46 (12/2021)
|
Definitions and recent trends in circular cities
|
In force
|
here
|
here
|
here
|
|
L Suppl. 47 (07/2022)
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Examples of resource saving within the information and communication technology sector
|
In force
|
here
|
here
|
here
|
|
L Suppl. 49 (07/2022)
|
Overview on adaptation to climate change for information and communication technology networks
|
In force
|
here
|
here
|
here
|
|
L Suppl. 52 (10/2022)
|
Computer processing, data management and energy perspective
|
In force
|
here
|
here
|
here
|
|
L Suppl. 53 (10/2022)
|
Guidelines on the implementation of environmental efficiency criteria for artificial intelligence and other emerging technologies
|
In force
|
here
|
here
|
here
|
|
L Suppl. 54 (10/2022)
|
Guidance for assessing the greenhouse gas emissions consequences of the financial effects generated by information and communication technology
|
In force
|
here
|
here
|
here
|
|
L Suppl. 55 (10/2022)
|
Environmental efficiency and impacts on United Nations Sustainable Development Goals of data centres and cloud computing
|
In force
|
here
|
here
|
here
|
|
L Suppl. 56 (10/2022)
|
Guidelines for connecting cities and communities with the Sustainable Development Goals
|
In force
|
here
|
here
|
here
|
| Title |
Approved on |
Download |
|
Partnering for solutions: ICTs in Smart Water Management
|
2014
|
here
|
|
Resilient pathways: the adaptation of the ICT sector to climate change
|
2014
|
here
|
|
Greening ICT Supply Chains – Survey on Conflict Minerals Due Diligence Initiatives
|
2012
|
here
|
|
Review of Mobile Handset Eco-Rating Schemes
|
2012
|
here
|
|
Boosting Energy Efficiency through Smart Grids
|
2012
|
here
|
|
