Shenzhen, China Pioneers ‘Near-Zero Carbon Communities’

In Shenzhen’s Houhai Central District, summer temperatures climb higher each year. Last summer, the city recorded a blistering 37.5 degrees C (99.5 degrees F), one of its hottest days in decades. For residents in dense, aging apartment blocks, staying cool isn’t just a matter of comfort; it’s a matter of cost. People are relying more heavily on air conditioners for relief. Electricity bills are surging as a result.

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It’s a common challenge in cities in China, where per capita electricity use has doubled over the past decade. Rapid urbanization and improved living standards have pushed residential energy use into a major driver of energy demand and carbon emissions. In Shenzhen, an industrial powerhouse home to 18 million people, household electricity consumption rose 10.3% from 2023 to 2024 alone.

Residents want lower bills, cooler streets and better neighborhoods. Shenzhen is prepared to give it to them.

The city is in the process of implementing 113 near-zero carbon demonstration projects, an ambitious plan to cut greenhouse gas emissions, reduce energy costs and build a greener future. In Houhai, one of Shenzhen’s larger neighborhoods, WRI worked with the city to deploy a range of solutions — from solar panels and smart energy management systems to energy efficiency retrofits, expanded green space and walkways.

Together, these changes are delivering benefits far beyond carbon reduction — and in the process, creating a blueprint for a modern, green city.

The Challenge of Low-Carbon Living

One of the biggest challenges in creating near-zero carbon communities is making sure they remain affordable and livable for everyone. Shenzhen has shown what a large city can do when it commits to cleaner, more efficient energy systems. It was the first city in China to fully electrify its buses, taxis and ride-hailing fleets — making commutes cleaner, safer and more affordable.

In Houhai Central District, the city is implementing cost-effective ways to reduce carbon emissions and improve residents’ quality of life.

Making Large Buildings More Energy-Efficient

Officials started with the largest energy users. Of the 20 large public buildings in Houhai connected to the city’s energy monitoring platform, all use far more energy than the Shenzhen average. Upgrading air-conditioning and lighting systems, installing rooftop solar PV, and adopting smart energy management systems in these buildings will cut energy use by around 15% and reduce carbon emissions by more than 22,000 tons — the equivalent of removing around 10,000 cars from Shenzhen's roads each year.

Retrofits are already underway and cutting costs. The Shekou office building’s solar panel system, for example, generates more than 314,800 kWh each year, which will reduce its electricity bills by as much as 50%.

Harnessing Low-Carbon Energy Creatively

While renewable energy such as solar PV, solar thermal energy and geothermal are the gold standards for near-zero carbon living, Houhai, with its high energy demand and limited space, needed to get creative.

The district looked beyond typical renewable solutions to integrated designs that combine solar systems with buildings and landscapes. Parks, plazas and other open areas will host solar panels, blending aesthetics and energy generation into a seamless urban design.

For example, the district plans to add solar panels to the roofs of parking garages and install renewable-powered streetlights. For commercial buildings, it is piloting building-integrated photovoltaics (BIPV). One such project is the Shenzhen Bay Sports Center, where photovoltaic glass panels already generate about 960,000 kWH annually, or roughly the equivalent energy use of 300 families. Paired with solar carports, an energy storage system, and ultra-fast EV charging, the center is a popular spot for performances, classes, major sporting events and more.

Building a Low-Carbon Transport System

Shenzhen now requires 40% of new parking spaces to include EV chargers — well above previous standards.

But part of the city’s goal is to reduce car trips entirely by prioritizing pedestrian-friendly streets and car-free areas. Houhai has built a 2-kilometer elevated walking corridor that connects more than 10 commercial complexes, cultural landmarks and parks. Since opening in September 2025, the corridor has quickly become part of daily routines. Commuters use it to access metro stations without crossing busy roads. Families enjoy a safe walking path, free of vehicle traffic. And users highlight its practical impact: Some report saving up to 800 RMB ($117) per month on taxi fares by choosing to walk to work.

Ecological Carbon Sinks

Renewable energy and efficiency can lower the cost of air conditioning. Green spaces can reduce the need for it in the first place by providing cooling shade. Research also shows that parks, trees and other green areas can boost physical and mental health by encouraging outdoor activity.

To that end, Shenzhen has built several new street corner parks and linked them to existing ones. Houhai has created an integrated park system — preserving existing green spaces, upgrading underutilized ones and introducing new ecological parks designed to absorb carbon emissions. The Shenzhen Talent Park (Phase II), for example, provides ample green space as well as a large children’s play area, making it a popular destination for families.

As local resident Ms. Cheng said to a news outlet, “The air is great, and there’s so much for kids to play with, they love it.”

Houhai has also added green roofs, terrace gardens and vertical planting on building facades and introduced greenery into underutilized “grey” spaces. Together, these greening efforts are expected to boost Houhai’s carbon sequestration capacity by an estimated by 12–16%, helping to reduce the city’s climate impact.

Getting Residents Involved

Effective low-carbon development extends beyond planning and infrastructure. It also relies on careful monitoring, management and community involvement. That’s why Houhai is also encouraging sustainable practices at the household level

For example, on Waste Reduction Day at Shenzhen Talent Park, residents swapped unused items at the “exchange market,” joined charity sales and donations, and participated in interactive waste-sorting games. The event combined learning with fun to promote sustainable lifestyles.

Embedding Green Goals into Policy

Re-imagining Houhai as a near-zero carbon community isn’t just about upgrading technology; it requires smart policy, financing and collaboration. While residents were eager to support more minor upgrades like EV charging stations, larger energy-saving measures needed government backing. City and district leaders worked together to design a financing plan that balanced ambitious energy goals with affordability. By analyzing the costs and benefits of different low-carbon technologies, they identified a subsidy range that met developers’ expectations, typically a 6- to 7-year payback period. The district government then committed to up to 1 million RMB per project ($146,000), turning near-zero carbon communities into a reality.

Turning Ideas into Action

Once the city fully implements its low-carbon strategies in Houhai, it will reduce the area’s  carbon emissions by 30%. Households in participating residential communities can expect a 22% reduction in their annual electricity fees (about $80 USD), following energy-saving renovations and solar PV installations.

At the same time, Shenzhen’s municipal government has developed its own standards for near-zero carbon communities, using lessons learned from Houhai and other near-zero carbon pilots. WRI China supported this effort, helping create benchmarks for energy efficiency and emissions reductions. Shenzhen aims to establish another 100 near-zero carbon demonstration projects by 2030.

Houhai’s approach is also informing efforts in other cities across China. So far, there are eight provinces and four cities in China that plan to build their own near-zero carbon demonstrations.