How ShopForTerra works, and what "sustainable" really means
Plain-language explainers on our revenue model, how we rate products, what sustainability certifications actually require, and how to think about solar and battery systems for an apartment. Written by the team behind the site — not filler, not generic tip lists.
How ShopForTerra Works
A plain-English walkthrough of how ShopForTerra turns affiliate referrals into donations — and why this model exists at all.
Read article →How We Score Energy-Efficiency Products
How our 1-to-10 eco-score is calculated: the four factors, their weights, and how eco-tags show the reasoning behind the number.
Read article →How We Choose Which Products to Recommend
How products get onto ShopForTerra, what we deliberately leave off, and why the category scope is narrow on purpose.
Read article →Where Our Revenue Goes, Transparently
A closer look at the 30/70 split between donations and operating costs — and where to track the running numbers if you want to verify them.
Read article →Why We Don't Offer Cashback or Per-Click Rewards
Cashback sounds great in theory — here's why ShopForTerra deliberately doesn't do it, and why that protects the integrity of what we recommend.
Read article →Who Receives Our Donations
How environmental organizations are selected for our donation list, how the revenue share split works, and where to verify it for yourself.
Read article →What Energy Star Certification Actually Means
What the Energy Star label actually certifies, what it doesn't, and how to read the qualifying criteria behind it.
Read article →Reading Sustainability Certifications: B-Corp, Fair Trade, and What They Mean
A real explainer of what B-Corp, Fair Trade, USDA Organic, GOTS, and FSC actually require companies to do, how they differ, and where each has limits.
Read article →Why We Chose These Four Environmental Organizations
What Ellen MacArthur Foundation, Ocean Conservancy, One Tree Planted, and Rainforest Alliance actually do, why each was selected, and how their work connects to the products in our catalog.
Read article →How ShopForTerra's Revenue Model Works
Where the revenue comes from, why 30% is donated, why we don't offer per-purchase cashback, and how the four partner organizations were chosen.
Read article →What Our Eco-Badge Ratings Actually Measure
The criteria behind each product's eco-score — materials, certifications, packaging, durability, and supply-chain transparency — and an honest accounting of what the rating does and doesn't capture.
Read article →Solar & Energy
Common Home Air Leaks and How to Find Them
A practical map of the most common home air leaks — where to look, in what order, and how to find the ones you can't see.
Read article →How to Choose a Home Battery System
Three reasons to buy a home battery, how to size one, and when AC- vs DC-coupling plus all-in-one vs DIY each make sense.
Read article →Using a Portable Power Station During a Power Outage
What a portable power station can and can't do during an outage, how to size one, and what to pair with it for multi-day resilience.
Read article →Understanding Solar Panel Efficiency Ratings
What solar panel efficiency actually measures, when it matters (constrained space) and when it doesn't (most installs), plus the spec sheet numbers that matter more.
Read article →Balcony vs Rooftop Solar: Which Makes Sense for You?
A practical comparison of professionally installed rooftop solar and self-installed balcony / plug-in kits — costs, output, and what each is good for.
Read article →Solar Charge Controllers Explained
What solar charge controllers do, the difference between PWM and MPPT, and how to size one for a DIY solar setup.
Read article →How to Choose an Energy-Efficient Window Air Conditioner
Sizing by BTU, reading the CEER efficiency number, why inverter compressors matter, and the install details that quietly cost you efficiency.
Read article →Solar vs Gas Generator for Backup Power
Side-by-side comparison of solar-charged portable power stations and portable gas generators for home backup — cost, runtime, noise, and the hybrid option that often wins.
Read article →How Much Solar Do I Need? A Practical Worksheet
A practical four-step sizing worksheet: annual kWh, peak sun hours, derate, then the math — with a worked example.
Read article →How to Insulate Your Attic: A Plain-English Walkthrough
A step-by-step walkthrough of an attic insulation top-up — why you seal air leaks first, what material to pick, and the cost ranges.
Read article →Understanding R-Values: A Homeowner's Guide
What R-value measures, how it stacks, where in your house the highest R-value pays back fastest, and what R-value alone doesn't address.
Read article →Weatherstripping and Air Sealing Basics: The Cheap Energy Wins
Why insulation alone doesn't work if the air leaks around it, where to find the leaks, what to seal them with, and the order of operations.
Read article →Reflective Foil vs Fiberglass Insulation: When Each Wins
Why reflective foil and fiberglass insulation aren't substitutes for each other, where each one wins, and how a hot-climate attic uses both together.
Read article →LiFePO4 vs Lead-Acid: Which Battery Chemistry Is Right for Your Home?
Why LiFePO4 has become the default for home and portable power, and where lead-acid still makes sense.
Read article →Understanding Watt-Hours vs Watts
Why the difference between watts and watt-hours matters — and a simple way to keep them straight when sizing a power station.
Read article →How to Size a Portable Power Station
How to match a portable power station to what you actually want to run — watt vs watt-hour basics, peak vs continuous, and a worked example.
Read article →Understanding SEER, EER, and BTU Ratings for Home Cooling
What BTU, EER, CEER, SEER/SEER2 and HSPF2 each measure, which one to compare for which product class, and why a high score on the wrong label can mislead.
Read article →Heat Pump vs Air Conditioner: Which Is More Efficient?
Why a heat pump and an AC are almost the same machine, when a heat pump actually wins, and when replacing the AC alone still makes sense.
Read article →Solar & Battery Basics: How to Size a Balcony System
A real explainer tied to the Savings Calculator: what payback period means, how peak sun hours and electricity rates drive the math, and what wattage and Wh ratings mean for an apartment setup.
Read article →