Design a high-fidelity desktop dashboard for scheduling household energy across rooftop solar, a home battery, a washing machine, a heat pump and electric-vehicle charging. Use a horizontal 16:9 application canvas with an icon-only left navigation rail, four energy summary cards across the top, a central 24-hour scheduling timeline, solar-generation curve, battery-state chart, appliance task blocks and a right-side recommendation panel. Add clear appliance cards with visible active states along the bottom. Build an accessible modern design system with a warm-white background, graphite text areas, solar yellow, leaf green and restrained sky blue; use a precise grid, 12px rounded cards, subtle borders, soft shadows, consistent spacing and legible charts. No company logo, no brand name, no long paragraphs, no distorted letters, no watermark, no dark cyberpunk style, no glassmorphism overload and no decorative illustration.