Generation, substations, transmission, and storage treated as one electrical power system, with the principles and tradeoffs of each.
This is an editorially selected reading order. Begin at step 1 or go directly to the topic you need.
Connect generation, grids, conversion and storage through power, energy, transmission losses and balancing.
Hydro, thermal, nuclear, solar, and wind look nothing alike if you only compare generation methods. This piece reads frequency, supply-demand balancing, substations, transmission losses, batteries, and protection relays as a single power system, walking through the equations that determine output and stability, the equipment in service today, and where renewable-energy research is headed.
Thermal power isn't just burning fuel. This piece reads the boiler, steam turbine, gas turbine, heat recovery, generator, and flue-gas treatment as a single thermodynamic and grid-operations system, organizing efficiency, emissions, startup time, hydrogen/ammonia co-firing, and CCS with equations and diagrams.
Hydroelectric power converts a drop and flow of water into electricity through a turbine and generator. This piece works through the output equation, turbine selection, dam, run-of-river, and pumped-storage plants, governors and grid regulation, fish passage and the environment, and digital twins and variable-speed pumped storage — covering both the equipment and the operations.
Nuclear power is a giant heat engine that hands the heat from fission over to a steam turbine. This piece organizes the chain reaction, a light-water reactor's primary and secondary systems, reactivity and cooling, safety systems, the fuel cycle, and SMRs and cutting-edge research, with equations and diagrams covering efficiency, risk, and grid operation.
Solar power is a system that converts light into DC electricity at a photovoltaic cell's pn junction, then delivers it to loads or the grid via MPPT, an inverter, and a transformer. This piece organizes I-V characteristics, the effects of temperature, shading, and irradiance, grid interconnection, batteries, current equipment, and cutting-edge perovskite research, with equations and diagrams.
In wind power, blades capture the momentum of wind, spin, and a generator plus inverter convert that spin into electricity. This article works through the Betz limit, pitch/yaw control, fixed- vs. variable-speed systems, offshore wind, forecasting, grid interconnection, noise and bird strikes, and current floating-turbine research, with equations and diagrams.
Geothermal power is a stable energy source sitting right under the feet of volcanic Japan, yet even though the country ranks third in the world for resource potential, installed capacity captures only a fraction of it. This article diagrams the difference between flash and binary systems, the risks of resource assessment and drilling, the regulatory tangle around hot springs and national parks, and next-generation technologies such as EGS and supercritical geothermal.
Why is a power plant's electricity stepped up to hundreds of kV and then stepped down in stages at substations? This piece diagrams the roles of transformers, circuit breakers, busbars, protection relays, and transmission lines — the equations behind loss, power angle, and insulation coordination, alongside today's equipment, digital substations, and HVDC research — as a single system.
A battery isn't a "power plant that stores electricity" — it's a piece of power equipment that shifts supply and demand across time. This article works through cell voltage, capacity, and C-rate, SOC/SOH, thermal runaway, safety design, grid-scale storage and V2G, and cutting-edge research such as solid-state batteries, with the math and charts.
Lithium-ion batteries are strong at balancing supply and demand over minutes to a few hours, but filling in longer timescales needs a different technology. This article works through pumped hydro's round-trip efficiency and variable-speed operation, green hydrogen's electrolysis, storage, and reconversion, real projects, and an efficiency comparison table to lay out the design thinking behind large-capacity, long-duration storage.
The kinetic energy stored in a synchronous generator's rotating mass is the shock absorber that softens sudden supply-demand swings on a timescale of seconds. As inverter-connected sources — solar, wind, batteries — grow and that shock absorber shrinks, how can the grid become unstable? This article works through the swing equation, primary through tertiary regulating power, synthetic inertia, and real large-scale blackouts.
As solar panels and batteries proliferate in homes and on distribution lines, electricity stops flowing in only one direction from power plant to consumer. This article diagrams smart meters (AMI), communication protocols, demand response, and self-healing distribution automation, connecting them to how substations and transmission networks work.
Rooftop solar, home batteries, EVs, factory demand response: this article diagrams how a VPP bundles scattered distributed resources on an IT platform and offers them to the market as if they were a single power plant, alongside Japan's aggregator system, balancing market, and real-world demonstration cases.