BULBAT
Batteries, solar, EVs, and the clean-energy future.
From modelling solar payback and EV charging costs to sizing battery banks, estimating runtime and lifespan, and measuring your carbon footprint, BulBat pairs free hands-on clean-energy calculators with practical guides and a richly illustrated museum. Power smarter, save more.
Solar, Battery & Clean-Energy Calculators
Free tools for solar, storage, and EV planning — solar ROI calculator, EV charging cost calculator, energy storage calculator, carbon footprint calculator, battery runtime calculator, and battery lifespan calculator.
Solar ROI Calculator
Estimate annual generation, bill savings, payback period, and 25-year return on a solar PV system from its size, your sun hours, electricity rate, and incentives
EV Charging Cost Calculator
Work out the grid energy, dollar cost, range added, and cost per 100 miles to charge your electric vehicle from one state of charge to another at home
Energy Storage Calculator
Size a home or off-grid battery bank from your daily energy use, days of autonomy, depth of discharge, and system voltage — in both kWh and amp-hours
Carbon Footprint Calculator
Estimate your annual CO₂-equivalent emissions from home electricity, driving, and natural gas, broken down by category and totalled in kilograms and tonnes
Battery Runtime Calculator
See how long a battery will power a load from its amp-hour capacity, voltage, and efficiency, shown in usable watt-hours, hours, and minutes
Battery Lifespan Calculator
Estimate how many effective charge cycles and calendar years a battery will last from its rated cycles, weekly cycling, and typical depth of discharge
Batteries & Clean Energy Museum
Wander an immersive museum of the technology powering the clean-energy shift — battery types and chemistries alongside solar, wind, and EV breakthroughs, each in its own gallery, so you can get to know the systems behind the transition: how they work, what makes each one matter, and the role they play in storing and delivering clean power.
Tour the museum →From the Journal
Fresh guides on solar, battery technology, energy storage, EV charging, green energy, and home energy efficiency.
The Bright Future of LED Bulbs: Illuminating Homes, Businesses, and Communities
The Bright Future of LED Bulbs: Illuminating Homes, Businesses, and Communities In an era where energy efficiency is paramount, LED bulbs have emerged as a revolutionary solution for lighting needs…
The Future is Bright: How LED Bulbs are Revolutionizing Lighting Technology
The Future is Bright: How LED Bulbs are Revolutionizing Lighting Technology In an era where energy efficiency meets innovation, LED bulbs stand at the forefront of lighting technology. These tiny…
The Bright Future of Energy-Efficient Bulbs: Illuminating Savings and Sustainability
The Bright Future of Energy-Efficient Bulbs: Illuminating Savings and Sustainability In an era where sustainability is paramount, energy-efficient bulbs stand at the forefront of innovation and environmental responsibility. These modern…
The Evolution and Future of Battery Technology: Powering Tomorrow’s Innovations
The Evolution and Future of Battery Technology: Powering Tomorrow’s Innovations Battery technology stands at the forefront of modern innovation, driving everything from smartphones to electric vehicles and renewable energy systems….
The Future is Powered: Groundbreaking Battery Innovations Shaping Tomorrow’s World
The Future is Powered: Groundbreaking Battery Innovations Shaping Tomorrow’s World In an era where energy demand continues to surge alongside climate change concerns, breakthroughs in battery technology are emerging as…
The Evolution and Impact of Modern Lighting Technologies on Everyday Life
The Evolution and Impact of Modern Lighting Technologies on Everyday Life In an era where energy efficiency and sustainability are paramount, modern lighting technologies have emerged as transformative forces reshaping…
Keep Learning
Practical know-how on batteries, solar, EVs, and energy storage, battery-chemistry and clean-energy explainers, and home-efficiency tips, plus a plain-language clean-energy glossary — everything you need to dig deeper and power smarter.
Visit the Learn hub →