emergency lighting

SOLAR-POWERED VS. BATTERY-POWERED LIGHTS FOR POWER OUTAGES: WHICH SHOULD YOU CHOOSE?

With extreme weather events and aging power grids causing more frequent blackouts, having reliable light for power outage situations is no longer optional - it’s essential. But which type of emergency lighting reigns supreme: solar-powered lights or battery-powered lights? In this guide, we break down the pros, cons, and key metrics to help you decide.  

The Battle of Solar vs. Battery Power in Emergency Lighting 

Round 1: Cost Efficiency  

  • Solar-Powered Lights: The upfront cost for quality solar lanterns or systems is higher, but they offer long-term savings by providing free energy from sunlight and eliminating the need for recurring battery purchases.  
  • Battery-Powered Lights: Lower price for basic models. But long-term expenses can add up due to the need for frequent battery charging and replacements, which can be costly—especially for higher-capacity lithium-ion batteries with shorter lifespans from frequent charging cycles. 

Round 2: Performance in Emergencies  

  • Solar-Powered Lights: Brightness is lower and depends on sunlight, ideal for ambient or decorative lighting. Runtime varies with weather and daylight hours, with reduced performance on cloudy days.
  • Battery-Powered Lights: Brightness is generally higher and adjustable, suitable for tasks that need focused light.Runtime is predictable but depends on battery capacity; frequent use may require recharging or spares.

Round 3: Reliability & Durability  

  • Solar-Powered Lights: Requires sunlight—ineffective in cloudy regions or during prolonged storms. Panels last 5 - 10 years; batteries degrade ~20% capacity/year.  
  • Battery-Powered Lights: Works in all conditions but struggles in extreme cold (lithium batteries fare better). With proper care, battery-powered lights last several years. Batteries degrade by about 20% annually but can be replaced or upgraded for a longer lifespan.  

Round 4: Environmental Impact  

  • Solar-Powered Lights: Zero carbon footprint post-production. Reduces battery waste in emergency lighting solutions.  
  • Battery-Powered Lights: Disposable batteries contribute to landfill toxins. Rechargeable NiMH/Li-ion are greener but require energy to recharge.  

How to Choose the Right Light for Your Needs 

Solar-powered lights depend on sunlight to work, so they may not work as well during cloudy days or in the winter months.

Battery-operated lights, on the other hand, need to be regularly replaced with new batteries. However, battery-operated lights can be used indoors or outdoors, while solar-powered lights are typically only used outdoors.

When it comes to choosing between battery-powered or solar-powered outdoor lights, there are a few things to consider. For one, battery-powered lights are often smaller and more portable, making them a good choice for areas that don't require a lot of light.

They're also cheaper than solar-powered lights, which can be a consideration if you're on a budget. However, solar-powered lights are more powerful and last longer than battery-powered ones.

Ultimately, the best option for you will depend on your budget, how big your yard is, and where you live. For instance, if you have a low budget and live in an area that doesn't get much sunshine, go for battery-powered lights.

On the other hand, if you're looking for an environmentally friendly solution that is likely to last many years to come, the best option for you might be solar garden lights.

Your environment dictates the winner: solar thrives under consistent sunlight, while battery power delivers in low-light regions. Assess local risks, weigh priorities, and let your unique conditions guide the choice—effective emergency lighting isn't about perfection, but strategic alignment with reality.