solar policy
Solar IRA Tax Credits in the US
The 25D residential solar credit expired Dec 31, 2025. Section 48E commercial ITC remains at 30%—up to 70% with bonus adders.
Blog archive
Browse older SurgePV articles. Each archive page is intentionally limited to keep transfer size, parsing cost, and crawl depth predictable.
solar policy
The 25D residential solar credit expired Dec 31, 2025. Section 48E commercial ITC remains at 30%—up to 70% with bonus adders.
solar design
Compare European city solar resources with reproducible PVGIS inputs, monthly irradiation, correct GHI and DNI definitions, and transparent PV sizing examples.
solar roi
Compare sourced utility-scale solar LCOE benchmarks by country and reporting year. Understand financing, energy yield, PPA prices and project-level limitations.
solar business
Solar market size by country 2026: China leads at 660 GW, EU at 406 GW, US at 200 GW. Full rankings and growth forecasts.
solar technology
Solar monitoring systems comparison 2026: hardware sensors, cloud platforms, and alert systems. Compare top monitoring solutions for all project sizes.
solar business
Turn your installed base into recurring revenue. Learn how to price, structure, and sell solar O&M contracts in a market projected to reach $32.6 billion by.
solar installation
Dirty solar panels lose 15–25% of output. This guide covers when to clean, step-by-step DIY technique, regional frequency, real ROI data.
solar technology
Solar panel degradation rates 2026: mono vs poly, PERC vs TOPCon, and warranty terms. Long-term performance analysis.
solar technology
Compare three exact 2026 solar module efficiency ratings using manufacturer documents, dimensions, temperature coefficients and practical buying limits.
solar design
How to lay out solar panels around dormer windows: code setbacks, shading mitigation, MLPE selection, and software workflows that recover lost kWh.
solar design
Hip-and-valley roof solar layout guide for installers: code setbacks, per-plane usable area, string design, and software workflows that maximize kW.
solar installation
Mount solar on standing seam metal roofs without penetrations. Clamp types, ASCE 7-22 wind loads, holding strength data, and step-by-step installation.
solar technology
Solar panel recycling Europe 2026: WEEE directive compliance, recovery processes, and end-of-life economics. Guide for responsible disposal.
solar technology
Compare solar panel temperature coefficients using verified datasheets, bounded power calculations, thermal models and separate cold-voltage checks.
solar technology
Solar panel warranty comparison 2026: product warranties, performance guarantees, and labor coverage. Compare tier-1 manufacturer terms.
solar design
Engineering guide to designing solar arrays on concrete flat roofs of apartment buildings.
solar installation
Designing solar for clay tile roofs without leaks or cracks. Hook selection, three-course flashing, load math, and PE-stamped install specs for 2026.
solar design
How to design solar for a detached garage or outbuilding. Separate meter vs subpanel feed, NEC feeder rules, sizing, costs, and net metering.
solar policy
Complete guide to solar panels on UK heritage and listed buildings. Listed building consent, conservation areas, Article 4 Directions, and approval strategies.
solar design
Trapezoidal vs corrugated metal roof solar mounting compared — bracket types, fastener choices, waterproofing, wind load math.
solar installation
Designing solar for slate roofs in 2026. Bracket selection, heritage compliance rules, structural loads, and design software workflow for installers.
solar roi
Solar payback period by country 2026: 4–15 year range across 30+ countries. Compare payback by incentives, electricity prices, and irradiance.
solar design
A practical US solar permit package checklist for project information, drawings, equipment evidence, structural review, batteries and jurisdiction-specific submission checks.
solar policy
Solar permit requirements Europe 2026: building permits, grid connection, and environmental assessments. Germany, Italy, France, Spain process compared.