Energy & Cost Modeling for Greenhouse Lighting: How to Calculate ROI When Switching to LED or Hybrid Systems
As energy costs continue to rise and greenhouse operators face increasing pressure to improve efficiency, many growers are evaluating whether now is the right time to transition from traditional high-pressure sodium (HPS) lighting to LED or hybrid lighting systems.
The challenge? The upfront investment can appear substantial.
The ROI of an LED Retrofit: What CEA Growers Need to Budget in 2026
What an LED retrofit from HPS actually costs and returns, from rebates and payback to fixture count, heat load, and the cases where a hybrid still wins.
Understanding Life Expectancy (L90B5) in Horticultural Lighting
Life expectancy rating of a horticultural lighting luminaire is one of the most important—but often misunderstood—factors to evaluate.
Replacing Your DE Lamps (Bulbs)
Replacing your lamps is critical because every 1% loss of PAR light can cost roughly 1% of growth and yield. When to re-lamp and how to plan it.
Cleaning Horticultural Luminaires: Best Practices
The summer months, when the days are longer, are typically a great time for greenhouse growers to consider cleaning horticultural luminaires.
Energy Incentives for Ontario Growers
Leveraging Ontario energy incentive programs to save money, increase productivity & reduce environmental impact.
Challenges and Opportunities in CEA
P.L. Light Systems President and CEO Todd Phillips talks about the challenges and opportunities CEA will face in 2023.
CEA Lighting Upgrades: What’s the Right Solution for your Facility?
CEA lighting upgrades could mean switching from HPS to LED luminaires. What’s the right solution for your facility?
Should I Use HPS or LED for Growing Licensed Cannabis?
In this article we overview the pros and cons of using HPS or LED lighting systems for growing licensed cannabis.
Are you lighting for optimum yields?
How do you achieve the highest yields with your lighting system? As we know, increasing light intensity up to a certain species-specific point results in a corresponding increase in yield. When light levels are not optimized for production or the type of crop you are growing, you have slower flowering, poor root development and plant […]