Solar Panel Installation And Diesel Generator Comparison

People often ask: How many photovoltaic panels can be installed per square meter? How much does photovoltaic power generation cost? Regarding photovoltaic questions involving "per square meter," the answer should clarify two points: first, photovoltaics are not installed based on square meters; second, the answer should focus on electricity output, which has little direct relation to area. However, since this is a common concern, we will professionally explain the "photovoltaic per square meter" issue from a customer-oriented perspective.

1. How Many Solar Panels Can Fit on 1 Square Meter of Roof?

For distributed photovoltaic systems, the conversion results are as follows: approximately 100 watts of panels can be installed per square meter on flat concrete roofs or ground surfaces; for sloped color steel roofs and tiled roofs, 100-120 watts per square meter can typically be installed. While these figures serve as references, on-site surveys are necessary before installation, as shading, obstacles, or structural factors may require recalculation.

2. Cost per Square Meter for Photovoltaic Installation

This question is technically imprecise, as photovoltaic systems are measured in watts (W) or kilowatts (kW). Current market installation prices range from approximately 8-10 yuan per watt. With around 100 watts installable per square meter, a rough non-professional estimate would be 800-1000 yuan per square meter. Note that this is a reference only—installation difficulties, long grid-connection distances, or structural reinforcement requirements can increase project costs.

3. Daily Electricity Generation per Square Meter

In North China, a typical kilowatt of installed capacity generates approximately 4-5 kWh daily on average, translating to 0.4-0.5 kWh per square meter per day, or roughly 140-180 kWh annually.

4. Annual Revenue per Square Meter of Photovoltaics

Revenue is closely tied to national policies. The 2018 subsidy adjustments included: reducing feed-in tariffs from 0.42 yuan to 0.37 yuan per kWh; and lowering benchmark grid prices for desulfurized coal in Class III regions from 0.85 yuan to 0.75 yuan per kWh. Based on annual generation per square meter, annual revenue is approximately 100-140 yuan.

Beyond photovoltaic power generation, diesel generators offer a practical and convenient alternative. They feature advantages such as easy maintenance, sufficient power output, durability, strong safety performance, low costs, wide applicability, and economic efficiency. Widely used in mines, railways, field construction sites, road maintenance, factories, enterprises, hospitals, and other sectors, they serve as backup, emergency, regular, or mobile power sources. Therefore, when choosing power generation methods and equipment, diesel generators represent an excellent alternative to photovoltaics.

Dingbo Power has advanced testing equipment, modern production technology, professional manufacturing technology, perfect quality management system, and strong technical research and development capabilities. It can provide 3KW～2500KW various specifications of ordinary, automatic, four protection, automatic switching, low noise and mobile generator sets, high quality and low energy consumption to meet the diverse power needs of customers, and can also meet users with different voltages and different frequencies. It is required to create a parallel power supply system for multiple units. If you are interested in our product or any question on generator, welcome to send email to [email protected].