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Energy-transition artwork with separate small and large optical masters.

UK home-energy research with calculators and regional tools

The U.S. Energy Information Administration's children's resource on energy sources, use and conservation.

Heat-network and district-energy scenario calculations

Energy-system performance and financial calculations

Free energy and sustainability learning modules.

Energy, finance and geopolitics in long essays

Visual reporting about energy and the climate

US energy statistics with several access methods

Household carbon arithmetic with visible assumptions

A daily planner that builds your schedule around energy, sleep and focus data.

Energy-code calculations for commercial building projects

A shared-home organiser for chores, shopping and expenses

Japanese household spending with category budgets and daily reminders

Manual iPhone household budgeting with editor and viewer roles

Personal emissions estimates with quick and detailed inputs

Japanese household reports with yearly views and category averages

Project management with capacity planning built in

Shared household chores with rotations and chosen rewards

A Silicon Labs IoT development environment that installs protocol SDKs and generates projects for preferred toolchains.

A simplified photovoltaic energy-production estimate

Macro tracker and diet coach app for Calories and macros.

Shared household budgets with transaction review and downloadable spending reports

A household budget book with offline apps and a paid web companion