How to Plan Solar Power for a Remote CCTV Camera

Installing a camera at a remote gate, water point or machinery area can be useful, but reliable operation becomes more complicated when mains electricity is unavailable. A solar panel and battery are not automatically enough: the system has to supply the camera, networking equipment and any recorder through daytime, overnight and poor-weather periods.

Before choosing hardware, work out the equipment's electrical requirements, the desired operating hours and the site's seasonal conditions.

Begin With the Complete Equipment List

Write down every device that will be powered from the system. This could include the camera itself, a wireless bridge radio, network switch, router, local recorder, infrared illumination or a satellite connection.

Manufacturer power ratings can help identify possible maximum demand, but actual consumption should be checked for the intended operating modes. Night illumination, cold-weather operation, startup loads and power-conversion losses can change total demand.

Convert Power to Daily Energy Use

Power is measured in watts (W); energy is measured in watt-hours (Wh). To estimate daily energy use for a device that runs continuously, multiply its average power consumption by 24 hours.

For example, equipment averaging 25 W uses approximately 600 Wh per day (25 × 24). If the equipment averages 50 W, it uses approximately 1,200 Wh per day.

These examples illustrate the calculation; they are not verified performance figures for any specific CCTV camera or network kit.

Allow for Battery Reserve

A battery must support the system whenever solar output is insufficient. A nominal 12 V, 100 Ah battery stores approximately 1,200 Wh on paper, while a nominal 24 V, 100 Ah battery stores approximately 2,400 Wh.

Nominal capacity is not the same as usable capacity. Battery chemistry, temperature, allowable depth of discharge, ageing and regulator losses all matter. The reserve period should account for the consequences of losing camera operation and the likelihood of multiple poor-solar days.

Design Around Winter, Not a Sunny Afternoon

Solar generation changes considerably with season, location, panel angle, temperature, shading and weather. A panel's nameplate rating does not represent guaranteed output throughout the day.

For remote installations in regional Australia, winter and extended cloudy periods can be critical. A proper design needs location-specific solar information, realistic system losses and enough charging capacity to replenish the battery after reduced generation.

Choosing Between Local Recording and Remote Viewing

Some cameras record locally, some connect to an on-site network recorder, and others rely on cloud services. Recording and remote viewing are different functions. A suitable local recording arrangement may continue capturing footage during an internet outage, whereas remote access usually depends on a working connection.

Plan the recording method before selecting power equipment, because an NVR, network bridge or internet router can materially increase the system's energy use.

Check Power Compatibility Carefully

Equipment may require different DC voltages or a compatible Power over Ethernet (PoE) arrangement. Passive PoE equipment can be particularly sensitive to voltage and pinout mismatches. The wrong supply can damage devices.

Check manufacturer's electrical specifications for every component, including startup demand, polarity, power-conversion requirements and suitable protective devices. Electrical works and battery installation must comply with applicable safety requirements.

Location and Installation Considerations

• Camera view: Confirm the area to be monitored and the detail needed at the intended distance.
• Solar exposure: Check for seasonal shade from trees, buildings and terrain.
• Communications: Confirm whether Wi-Fi, a wireless bridge, mobile data or satellite connectivity is practical.
• Weather: Select appropriate enclosures and mounts for heat, rain, dust and wind.
• Maintenance: Allow access for cleaning, battery checks and troubleshooting.
• Security: Protect exposed cabling and equipment from tampering or damage.

Monitoring Helps Identify Problems Early

Where practical, battery voltage, state of charge, solar charge performance and load consumption can be monitored to identify problems before the system stops. Monitoring cannot eliminate all faults, and it also needs functioning communications to report data remotely.

Information to Prepare for a Quote

It helps to provide the installation location, proposed camera models, distance to other buildings, whether local recording is required, power availability, communications options and the minimum acceptable uptime.

SpaceTek IT & Communications can discuss remote CCTV, Starlink and solar-powered communications requirements. Explore Off-Grid Solar Communications and CCTV & Security Systems, or contact our team about your site.