Skip to content
LIVE · Grid Watch
US Solar Capacity219 GW+17% YoY
US Wind Capacity153 GW+4% YoY
Residential ITC (Sec. 25D)Expired12/31/2025
Global Renewables Share30.8%+1.6pp YoY
US Grid Carbon368 g/kWh-3.1% YoY
100% Renewable Countries7ALB BTN ETH ISL NPL PRY COD
US Solar Capacity219 GW+17% YoY
US Wind Capacity153 GW+4% YoY
Residential ITC (Sec. 25D)Expired12/31/2025
Global Renewables Share30.8%+1.6pp YoY
US Grid Carbon368 g/kWh-3.1% YoY
100% Renewable Countries7ALB BTN ETH ISL NPL PRY COD
GridBasics
Energy, made simple
Technology Library

Every technology.
One map. Nothing skipped.

Click any stage below to expand the technologies that live there. Every entry links to a full walkthrough — how it works, honest tradeoffs, what's coming next.

Deep Dives

Featured technologies with full walkthroughs

Category · generation

Solar Photovoltaic

Silicon. Sunlight. Current.

Panels convert photons directly into electrons through the photovoltaic effect — no turbines, no moving parts, just silicon and sunlight.

Cost / kWh (utility)0.03–0.05 USD
Panel efficiency20–23 %
Lifespan25–30 yrs
Energy payback1–3 yrs
Category · generation

Wind (Onshore)

Lift. Rotation. Current.

Airfoil-shaped blades generate lift, spinning a rotor connected — directly or through a gearbox — to a generator.

Cost / kWh (new onshore)0.02–0.04 USD
Capacity factor35–50 %
Lifespan20–25 yrs
CO₂ / kWh11 g
Category · storage

Lithium-Ion (LFP)

Chemistry as a battery.

Lithium ions shuttle between an iron-phosphate cathode and a graphite anode — the chemical dance that stores grid-scale energy.

Round-trip efficiency92–95 %
Cycle life (LFP)5,000–10,000 cycles
Cost / kWh (cell 2025)≈90 USD
Lifespan (calendar)12–20 yrs
Category · storage

Sand Battery

The oldest thermal trick, weaponized.

Excess renewable electricity heats ordinary sand to 600°C inside an insulated silo. Heat is stored for weeks — then released to warm buildings or spin a turbine.

Storage temperature500–600 °C
Storage durationDays–Weeks
Cost / kWh (est.)≈20 USD
MediumSand
Category · generation

Geothermal

4.5-billion-year-old reactor. Still running.

The earth is a nuclear reactor. A few kilometers down, it is hot enough to make steam — or, at shallow depth, stable enough to heat and cool a house with a ground loop.

Capacity factor90–95 %
Cost / kWh (utility)0.04–0.10 USD
Lifespan (plant)40+ yrs
GSHP efficiency300–500 %
Coming Soon

Full coverage of every stage

These have written outlines — animated walkthroughs ship in Phase 2 and 3. If there's one you want next, email [email protected].

generation
Solar · Concentrated
Soon
generation
Wind · Offshore
Soon
generation
Micro-Hydro
Soon
generation
Biomass / Biogas
Soon
storage
Flow Battery
Soon
storage
Pumped Hydro
Soon
storage
Compressed Air
Soon
storage
Hydrogen
Soon
storage
Gravity
Soon
storage
Flywheel
Soon
storage
Sodium-Ion
Soon
distribution
Microgrid
Soon
distribution
TOU Pricing
Soon
distribution
Community Solar
Soon
consumption
Heat Pump
Soon
consumption
Heat Pump Water Heater
Soon
consumption
Envelope & Insulation
Soon
consumption
Electric Vehicles
Soon