Thank you, Cathy. Hello, everyone, and thank you for joining our call today. In the first quarter of 2023, we delivered solid performance amid a rapidly evolving business environment and solidified our leadership in the third-party charging service market.
In the first quarter, our revenues saw a 2.5-fold growth year-over-year to reach RMB 36.2 million driven by our progress in expanding our network and optimizing our user experience across the construction, operating and upgrade stages for charging station owners.
The total charging volume transacted through our network during the quarter increased by 112% year-over-year, reaching 1,023 gigawatt hour. This accounted for 21% of all charging volume completed through public chargers in China during the same period. Additionally, the gross transaction value transacted through our network amounted to RMB 990.5 million in the first quarter of 2023, representing an increase of 107% year-over-year. At the same time, our total number of orders surged by 110% from 21.2 million in the first quarter of 2022 to 44.4 million.
Notably, in the first quarter, revenues from online EV charging solutions increased by 145% year-over-year, outpacing the total charging volume growth and GTV growth over the same period. Benefiting from greater operating leverage, our net loss margin in the first quarter declined by 383 percentage points year-over-year.
While expanding our charging network, we're committed to providing a full suite of one-stop EV charging solutions,for station owners to address their key pain points and at the same time, enhancing our customer stickiness and create additional revenue streams. As of May 31, 2023, we have provided operational maintenance services for over 20,000 parking slots across 3,000 charging stations in 300 cities.
We have launched multiple charging products, specifically designed for Europe market, to complement our one-stop charging solution. These include our AC Wallbox for EV charging at home and DC charging products for fast charging, both posting high-quality, high-cost internet, innovative features, meets the required safety benefit.
Let me now move to our advancements in technological infrastructure. These advancements provide insight to our strategy and operations, thus, promotes a more efficient digitalized and integrated energy system. First, we developed an AI-driven Digital Energy Asset Management System, or DEAMS. It leverages charging order, traffic, economic data and ongoing as well as our large model capabilities to predict station operating conditions, charging efficiency and resource productivity for specific sites and forecast load on the power grid. With this system, we will be able to enhance our mobility and activity services for station owners in customer acquisition and operational processes.
It also allows us to augment our charging station construction services, operation services and maintenance services with one-click evaluation for station owners. It provides a visualized site-specific cost and return forecast for stations in different regions across China, thereby serving to enhance operations and investment returns for station owners while driving the efficiency improvement of the overall charging market.
In addition, DEAMS can support a broad array of energy assets other than China stations. It takes the scheduling optimization of PV energy storage facilities and charging stations based on cost-benefit analysis into consideration. It factors in additional income streams such as revenue from peak shaving and benefiting, ultimately improving their overall efficiency and profitability when investment decisions are being made. As Cathy mentioned, we look forward to deploying DEAMS in the second half of the year and creating incremental value and opportunities for new energy asset.
Another breakthrough was the virtual power plant platform we launched on June 13, which will be a hub for efficient coordination of power generation, the grid and electricity users with charging stations at the center of using scenarios and benchmark for the large-scale implementation of virtual power plant. This platform efficiently aggregate distributed energy resources, such as EV charging stations, energy storage facilities and distributed PV through the cloud, forming manageable units with flexible management of these resources and intelligence scheduling and control. It actively participates in electricity market transactions and the response to great scheduling needs, addressing electricity supply and demand fluctuations.
Through our virtual power plant platform, we also effectively promote the orderly charging of EV, enhance clean energy consumption and contribute to reducing energy intensity and energy costs. Furthermore, we will leverage the virtual power plant platform to gradually build integrated charging stations with PV, energy storage, charging and energy asset services.
To round off our efforts to transform into an integrated new energy service provider, we recently entered into a definitive agreement to acquire a stake of over 89% in Sinopower HK, a leading rooftop solar energy developer in Hong Kong. Out of the 60 megawatts installed solar capacity in Hong Kong, 25 megawatts have been built by Sinopower, with a reputable client base, including Hong Kong Jockey Club and the Hong Kong Exchange. It has sourced and exceeded more than 600 projects since 2018, leveraging strength in project sourcing, patented solar energy-related technologies and a partnerships with key industry stakeholders.
Sinopower is a strong strategic state for us. Through this transaction, we will enter the distributed solar PV sector in Hong Kong. We established a strong integration with Sinopower in areas such as technology, product, capital end markets and significantly enhanced the execution and returns of solar projects. Separately, becoming part of our platform will help accelerate Sinopower's venture into EV charging business. By leveraging this integration, we aim to expand our capabilities, renewable energy and EV charging solutions globally. This deal is expected to close in June 2023, subject to customary closing conditions.
Next, I will go over some of our financial results for the first quarter of 2023. In keeping with our protocol, I will address our financial highlights here, and I encourage you to refer to our earnings press release posted online for additional details. Our total revenues reached RMB 36.2 million in the first quarter, up 150% year-over-year. The rapid increase was mainly the result of increases in platform order volumes and continued improvement in our operations.
Our total operating costs were RMB 149.8 million in the first quarter, rising by 37%. This was primarily due to our significant business expansion.
Our net loss for the first quarter of 2023 was RMB 109.7 million as compared with a net loss of RMB 99.3 million for the same period of 2022. Based on the company's current and preliminary view of our business situation and market conditions, which are subject to change, we are reaffirming our guidance that full year 2023 revenues will be in the range of RMB 500 million and RMB 600 million, increasing by 5 to 6x from 2022.
To summarize, in the first quarter, we continued to cement our leadership position in the EV charging network, while innovating and making technological enhancements. Going forward, we will further expand our competitive position in the third-party charging services market while strengthening our virtual power plant platform and nurturing a clean, efficient and low carbon power system as we leverage the rising trend of new energy and EV adoption.
This concludes our prepared remarks for today. Operator, we are now ready to take questions. Thank you.