Observed arrival · 2026-11-09
MyWattLife’s calculator shelf for household energy
A collection of free calculators for solar, batteries, wind, household bills, EVs, and travel costs.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Households comparing energy options and running costs
- Worth noticing
- The EV charging calculator accounts for energy lost between the wall and the battery.
Field notes
The calculator list spans household bills and appliance use as well as small-scale generation, including micro hydro output from stream flow, head, and system efficiency. Other named tools estimate how long a battery can run a steady load through an inverter and how many panels fit a target system size and available area. The homepage says results are worked out with visible formulas and browser-local data.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
One card from the complete issue