Clean Energy Blog
Data-driven analysis on solar economics, EV costs, electricity rates, and energy policy — updated for 2026.
Solar Basics
Home Battery Storage in 2026: Is It Worth the Investment?
Home battery systems cost $10,000–$15,000 installed. Are they worth it in 2026? We analyze TOU arbitrage savings, backup power value, solar synergy, and payback timelines to give you an honest answer.
Solar Lease vs PPA vs Buying: Which Is Best in 2026?
Buying solar outright delivers the highest long-term return, but leases and PPAs still make sense in specific situations — and they still qualify for Section 48E tax credits through 2027. Here's a full financial comparison of all three options.
Solar Panel Degradation: What to Expect After 10, 15, and 25 Years
Solar panels lose roughly 0.3–0.5% of output per year. Here's what NREL and manufacturer data say about real-world panel longevity, how to read warranty fine print, and when your system might be worth replacing vs. repairing.
Tesla Powerwall vs Enphase IQ Battery: Complete Comparison 2026
Choosing between a Tesla Powerwall 3 and Enphase IQ Battery 5P? We compare specs, installed costs, warranties, inverter compatibility, and real-world performance to help you pick the right home battery for your situation.
Solar + EV: Why Combining Them Maximizes Your Savings
Solar panels and an electric vehicle create a virtuous savings cycle. We break down the combined economics, best states, and why the whole is greater than the sum of its parts.
Solar Panel Cost by State in 2026: Complete Pricing Guide
Solar panel costs vary dramatically by state — from $2.70/watt in Louisiana to $3.70/watt in Hawaii. Here's the complete 2026 breakdown of installed costs, state incentives, and when solar still makes financial sense without the federal residential tax credit.
EV Economics
How Much Does It Cost to Charge an EV at Home? (2026 Rates)
Using EIA February 2026 electricity rate data, we break down exactly what it costs to charge the most popular EVs at home — by state, by model, and by monthly mileage. Plus how home charging compares to public DC fast charging.
Level 1 vs Level 2 EV Charger: Which Do You Actually Need?
Level 1 charging is free and works fine for many EV owners. Level 2 adds 25–35 miles per hour but costs $600–2,000 installed. Here's an honest breakdown of both options and how to decide which one fits your driving habits.
Best Time-of-Use Rate Plans for EV Owners in 2026
Time-of-use electricity rates can slash your EV charging costs by 60–70% if you charge during off-peak hours. Here's how TOU works, which utility plans offer the best rates, and how to calculate your exact monthly savings.
EV vs Gas Car in 2026: The Complete Cost Breakdown
A data-driven total cost of ownership comparison between electric vehicles and gasoline cars in 2026. We analyze purchase price, fuel costs, maintenance, insurance, and resale to find the real winner.
Policy Updates
Iran War & Energy Crisis: Why Solar Panels and EVs Are Your Best Hedge Against Oil Price Shocks
The 2026 Iran war has spiked oil prices above $100/barrel and gas to $3.57/gallon. Learn how solar panels, EVs, and battery storage protect homeowners from energy price volatility — with real data from experts.
Solar Still Makes Sense in 2026: How the Industry Is Adapting After Federal Cuts
The 30% federal tax credit and Solar for All are gone — but solar still makes financial sense. See what state incentives remain, how installers are adapting, and when the math still works.
Federal Solar Tax Credit Expired: What Homeowners Need to Know in 2026
The 30% federal solar tax credit (25D) expired December 31, 2025. Here's what changed, what's still available, and whether solar still makes sense.
How Net Metering Works in 2026: State-by-State Guide
Net metering lets solar owners sell excess electricity back to the grid — but the rules vary dramatically by state. Here's how net metering works in 2026, which states still offer full retail rates, and what California's NEM 3.0 means for your solar ROI.
Is Solar Worth It in 2026 Without the Federal Tax Credit?
The 30% federal solar tax credit (Section 25D) expired December 31, 2025. Here's what homeowners need to know about solar economics in 2026 — and when it still makes financial sense.
State Guides
Top 10 States for Solar Savings in 2026 (Ranked by ROI)
Which states deliver the best solar ROI in 2026? We rank the top 10 by payback period and 25-year return, factoring in electricity rates, sun hours, state incentives, and net metering policy — updated with EIA February 2026 data.
Solar Panels + Electric Vehicle: The Ultimate Home Energy Strategy
Combining rooftop solar with an EV creates a home energy system where your car runs on sunshine. Here's how solar-powered EV charging works, what combined savings look like by state, how to size your system, and the carbon math.
Electricity Rates by State in 2026: The Complete Guide
The national average electricity rate reached 18.05¢/kWh in early 2026 — a 5.4% year-over-year increase. Here's a complete breakdown by state, why rates differ so dramatically, and what it means for solar and EV economics.
About This Blog
The Clean Energy Calculator blog provides data-driven analysis to help homeowners make informed decisions about solar panels, electric vehicles, battery storage, and home energy efficiency. Every article is backed by the latest data from the U.S. Energy Information Administration (EIA), National Renewable Energy Laboratory (NREL), and Department of Energy (DOE).
Our calculators give you personalized numbers — this blog provides the context to understand what those numbers mean. Whether you're deciding between solar leasing and buying after the ITC expired, or trying to understand which EV makes the most financial sense in your state, you'll find clear, unbiased analysis here.