The case in China Mobile, before the site has six cabinets with a large footprint (5.4 m2), low site power efficiency (85%), and high power consumption (US$3,500/year).
Following implementation of the Huawei iSitePower Solution：
1)Leading the mainstream construction mode of carriers' sites, which indoor site are replaced by cabinets and cabinet site are replaced by poles. Based on high-density and energy MIMO* technology, the site can be achieved one cabinet replaces six original cabinets (such as power, RAN equipment, and batteries), reducing the footprint by 80% (from 5.4 m2 to 1.1 m2). In addition, simplified sites reduces O&M by 75% (from US$220/year to US$50/year).
2)Access solar power to reconstruct the power supply architecture of ICT networks. Based on Huawei's unique iPV technology, the PV can generate 20% more electricity, enabling PV to become the main power supply for ICT networks, helping to reduce the carbon emissions of ICT networks. Saves 58% of the electricity cost for each site every year (from US$3,500/year to US$1,500/year), reducing carbon emissions by 8 tons per site every year.
3)Promote site batteries from simple power backup to intelligent energy storage systems with Huawei CloudLi Li-ion battery, maximizing the value of site batteries. Huawei's unique intelligent peak staggering feature can store power during off-peak hours in mains and discharge power during peak hours. The electricity cost savings of one year may exceed US$15 million if all sites in Hangzhou (Cities in China) use this feature.
* Energy MIMO: Energy MIMO supports multi-power input and multi-mode output, which is flexible and flexible. One power system can meet the different voltage requirements of different equipment, such as 48V, 220V and so on.

https://www.lightreading.com/huawei-builds-isupersite-showcase-in-collaboration-with-china-mobile-zhejiang-and-china-mobile-design-institute/a/d-id/773313

• International

• Youth
• Older persons
• Women
• Indigenous and nomadic peoples
• People with disabilities
• The unemployed
• The poor
• Migrants
• Refugees and internally displaced people
• Remote and rural communities
• Help carriers quickly deploy networks and minimizes energy consumption, Help everyone have undifferentiated connectivity, Reduce carbon emissions and protect the Earth's ecology

The solution has been successfully deployed in multiple regions around the world.
In Europe:
Huawei successful deployed iSitePower-A hybrid power solution on a Green Energy Island located in Greece, which can reduce OPEX and carbon emission by harnessing solar energy and advanced technologies. The high-density and efficient iSitePower solution facilitated the module design and replace the original room by one cabinet, reducing footprint and air-conditioner energy consumption. With solar access, the site achieved 51% grid reduction and saved 14500kWh each year, equivalent to 10 tons of carbon emissions.
https://www.youtube.com/watch?v=wJ2kQ2A7YJw
In Africa:
Huawei successful deployed iSitePower-S hybrid power solution in Nigeria this year. This solution provides economical, green, and reliable power supply for areas with poor or no mains supply. The iSitePower-S hybrid power solution solar energy yield is approximately 303 kWh each day, and the estimated annual yield is expected to reach 110 MWh. Carbon emissions will be reduced by 52 tons, and the genset OPEX will be cut by US$20,000 each year.
https://www.telecomreview.com/index.php/articles/wholesale-and-capacity/5575-huawei-isitepower-s-achieves-a-green-and-low-carbon-campus-bridging-the-energy-divide-in-nigeria
In Asia:
Huawei iSitePower carried out a project of innovative intelligent power usage management in Zhejiang Province with China Tower. In the project, iSitePower replaced the legacy power supply to visualize and manage device-level energy consumption, enable effective power backup with low battery investment, and implement remote energy consumption management which minimizes the need of site visits. With iSitePower, China Tower improves energy efficiency while reduces OPEX by $400 and cuts carbon emissions by about 2.1 tons per site each year.
https://www.gsma.com/futurenetworks/wiki/huawei-and-china-tower-redefine-intelligent-power-usage-management-with-itelecompower/

Energy conservation, consumption reduction, and carbon emission reduction are essential to ensuring sustainable development of the communications industry. The convergence of 5G, computing, and intelligent technology in the context of “low carbon”has presented a diverse range of possibilities for reduce carbon emissions. Especially when clean energy becomes the mainstream power supply, and lithium batteries replace lead-acid batteries as the mainstream power backup solution for ICT sites.
Huawei iSitePower solution integrates digital, power electronics, and ICT technologies, also joint innovation with global leading carriers to helping carriers to upgrade and reconstruct the mains power and backup batteries of existing sites to reducing space and saving energy. This solution not only meets the requirements for the rapid coverage in all scenarios of ICT sites, but also minimizes energy consumption, enabling carriers to achieve their carbon emission goals. Until to November 2021, the solution has promoted 20,000 commercial sites on a large scale around the world.

This project provides new ideas and templates that can be promoted and replicated for global operators to reduce energy consumption and carbon emissions on the entire network, and helps build green, energy-saving, low-carbon network. If replication is promoted for all global sites, it is estimated that carbon emissions will be reduced by 28 million tons per year, which is equivalent to 38 million trees planted annually.