Why Solar Power for Outdoor Surveillance Cameras
Outdoor surveillance cameras often face power supply challenges. Whether for remote infrastructure, real estate sites, expansive parking lots, or construction sites, these locations are usually vast and off the beaten path. Traditional grid power installation requires trenching and cabling, which costs substantial time and money, plus complicated approval procedures. Meanwhile, such sites are often high-risk areas where reliable camera surveillance is non-negotiable.
Fortunately, with advances in solar technology, an increasing number of businesses are adopting off-grid solar solutions to power surveillance cameras. From a practical perspective, this article systematically explains how to select a suitable solar system for camera power supply, covering three key factors: camera power consumption, solar panel wattage, and battery capacity together with the MPPT system. Mastering these points will help you pick the right solar setup, cutting costs and boosting operational efficiency while fully meeting on-site power needs.
Calculate Camera Power Consumption
First, confirm the camera's power draw. You can find this data in the camera specification sheet. Spec sheets list various parameters sorted by category, and power consumption is usually placed in the General section. Most commercial cameras consume under 20W. However, some thermal imaging, high-resolution, dual spectrum PTZ cameras can easily reach hundreds of watts.
Another critical note: power usage is not fixed. Enabling extra functions such as infrared night vision will raise power consumption, and power draw also differs between DC and POE power supply modes. We recommend calculating based on peak power rating - the maximum listed wattage - to leave sufficient safety margin.
For example, if a camera runs at 10W standby and 20W at peak, calculate using the peak value:20W × 24h = 480Wh daily consumption.For multiple cameras, multiply each unit's peak wattage by 24 hours and sum the total to get overall daily power usage. Keep these figures handy, as solar panel output and battery capacity are both calculated on a daily basis.
Match Proper Solar Panel Wattage
Second, calculate solar panel wattage. Once you have the camera's daily power consumption, check if the solar panel's daily power generation can cover the demand. Solar output equals panel wattage multiplied by local peak sunlight hours.
The rated wattage on spec sheets is the laboratory standard maximum output, which is rarely achieved in real-world deployment. We suggest taking 80% of the rated power as the actual working output.
Sunlight exposure is affected by weather, climate, seasons, latitude, on-site obstructions, panel orientation and tilt angle. We recommend looking up the local average peak sunlight hours directly.
Example: A 1000W rated solar panel with 3 hours of local peak sunlight:1000W × 3h × 80% = 2400Wh daily generation. that said, your total daily camera power consumption should stay below this value.
Configure Sufficient Battery Backup Capacity and choosing MPPT system
Third, determine battery capacity. Batteries store excess solar energy to supply power at night or on consecutive cloudy days with insufficient sunlight.
Pay special attention to prolonged overcast conditions. First identify the local climate pattern: some regions experience weeks of cloudy weather in winter or rainy seasons. Multiply the daily camera power consumption by the number of consecutive low-sunlight days to get the required backup energy.
Example: 1000Wh daily consumption over 7 cloudy days:1000Wh × 7 days = 7000Wh.Your battery capacity must meet or exceed this figure.
Lastly, MPPT controller selection. Prioritize user-friendly MPPT brands with remote monitoring functions, such as Victron Energy. It allows remote viewing of daily power usage and remaining battery level, helping you monitor system performance in real time and adjust camera configurations to optimize solar utilization. For instance, you can start a portable generator to charge the surveillance system promptly when battery and solar output are both low.
Professional and reliable Solar Solutions
As a one-stop mobile solar solution provider, BIGLUX has over a decade of experience in designing solar power systems specifically for surveillance applications. We offer customized high-power, mobile and fixed solar solutions tailored to different scenarios.
Our innovative mobile trailer design integrates solar panels, batteries and MPPT controllers all on one unit, equipped with a 7–9 meter telescopic mast for camera installation. Plug-and-play ready, the solar panels feature multi-angle tilting and rotation to maximize sunlight absorption and streamline on-site deployment, delivering long-term value with one-time installation. Click to explore our HiSOLO model for more details.
We also provide large hybrid solar-diesel solutions, such as the HiSTAR model fitted with a 2300W solar system and a 3KW diesel generator. Ideal for high-power camera setups, low-temperature climates and low-sunlight regions, the generator auto-starts automatically when battery power drops too low.
Leave a comment below if you want to know more, and our team will provide professional remote technical guidance within 12 hours.
FAQ
Q: How to calculate the right solar panel size for surveillance cameras?
A: First work out the total daily power consumption of all cameras. Then multiply the solar panel rated wattage by local peak sunlight hours and apply an 80% efficiency discount for real-world use. The actual daily solar generation must be higher than the cameras' total daily power usage.
Q: How much battery backup do I need for cloudy and rainy days?
A: Estimate the maximum number of consecutive overcast days in your local area. Multiply the daily camera power consumption by the number of low-sunlight days to get the required backup energy. The battery capacity should be no less than this value to keep cameras running continuously without sunlight.
Q: Do you have other models besides the above two?
A: Yes. We offer a full range of solar surveillance tower options, including the compact upright block-style HiGuard and the wheel-free HiSKID model. Feel free to leave a message on this page, and our engineers will get in touch with you within 12 hours.