Guides — United States
Every guide answers its question in the first two sentences, dates every price, and names every source. 434 published, grouped into the questions buyers actually ask.
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Start with your question
What should I buy, and how do I not get cheated?
29 guides
FixesWhy is my inverter beeping?
5 guides
SystemsHow do I size it, and what changed with net billing?
86 guides
ElectricShould I go electric, and what will it really cost per km?
21 guides
MoneySchemes, instalments, loans — what can I actually get?
288 guides
ReportsWhat do the numbers say?
5 guides
All guides — page 15 of 19
Money
Schemes, instalments, loans — what can I actually get?
State EV Incentives in 2026: The Post-Federal Map
With the federal credit dead since September 2025, state programs are the whole game — funded, waitlisted, exhausted or expired. The nine-state scorecard.
Texas ERCOT Solar Buyback Plans and Net Metering Guide
How to choose Texas ERCOT solar buyback plans. Learn REP contract terms, fixed vs wholesale rates, TDU delivery charges, and smart meter requirements.
Texas PUC Rule 25.211: Distributed Generation Interconnection Guide
Understand Texas PUCT Substantive Rule §25.211 for on-site distributed generation interconnection. Covers capacity limits, study fees, and timelines as of Au...
Texas PUC Rule 25.212 DG Technical Interconnection Standards Guide
Understand Texas PUC Rule 25.212's technical requirements for distributed generation interconnection. This guide details frequency, voltage, and power qualit...
The Big Beautiful Bill and Solar Tax Credits, Explained
What the One Big Beautiful Bill Act changed for solar: the 25D homeowner credit ended Dec 31, 2025, the EV charger credit June 30, 2026, and 48E got deadlines.
The Solar Installation Process, Step by Step (And Where It Stalls)
Panels go up in a day or two; the other eight weeks are permits, interconnection, inspection and PTO. Every stage, who controls it, and where projects stall.
TVA Dispersed Power Production and Solar Interconnection Guide
Understand the TVA Dispersed Power Production (DPP) program for solar interconnection, including avoided-cost rates, metering options, and regulatory...
TVA Green Connect Quality Contractor Network Solar Guide: Requirements for Residential Installations
The TVA EnergyRight Green Connect program sets mandatory standards for residential solar and battery installations, requiring QCN certified contractor...
US BLM 43 CFR 2804.25: Solar ROW Application Guide
Compliance guide for BLM 43 CFR 2804.25 (August 2026). Master solar ROW application steps, Plan of Development (POD) mandates, and cost recovery fees.
US BLM 43 CFR 2804.35: Solar ROW Prioritization Guide
Compliance guide for BLM 43 CFR 2804.35 (August 2026). Master solar ROW prioritization, Designated Leasing Areas, and resource conflict avoidance.
US BLM 43 CFR 2805.12: Solar ROW Terms & Bonding Guide
Compliance guide for BLM 43 CFR 2805.12 (August 2026). Master solar ROW grant terms, wildfire prevention, erosion control, and POD covenants.
US BLM 43 CFR 2805.14: Solar Grant Rights & Access Guide
Compliance guide for BLM 43 CFR 2805.14 (August 2026). Master solar ROW rights, subleasing limits, access road maintenance, and assignment approvals.
US BLM 43 CFR 2805.16: Cost Recovery Fees Guide
Compliance guide for BLM 43 CFR 2805.16 & 2805.17 (August 2026). Master right-of-way cost recovery fee tiers, master agreements, and monitoring rules.
US BLM 43 CFR 2805.20: Solar Bonding Requirements Guide
Compliance guide for BLM 43 CFR 2805.20 (August 2026). Master solar ROW bonding rules, RCE estimates, and the $10,000 per acre floor on public lands.
US BLM 43 CFR 2806: Solar Rights-of-Way Rent & Capacity Fees Guide
Federal compliance guide for BLM 43 CFR 2806.52 (August 2026). Master solar acreage rent formulas, 100% encumbrance, and 3.9% capacity fees.
US BLM 43 CFR 2807.17: Grant Assignment & Termination Guide
Compliance guide for BLM 43 CFR 2807.17 & 2807.21 (August 2026). Master right-of-way suspension, 5-year abandonment, cure notices, and assignment rules.
US BLM 43 CFR 2809: Competitive Solar Leasing & Nomination Guide
Compliance guide for BLM 43 CFR 2809.11 (August 2026). Master public land solar leasing, $5/acre nomination fees, and Federal Register notices.
US Commercial Solar MACRS Depreciation and Tax Basis Guide
Master commercial solar 5-year MACRS depreciation. Learn the 85% depreciable basis rule after ITC reduction, bonus depreciation, and 5-year recapture terms.
US DOE 10 CFR 436.14: Federal Solar Life Cycle Costing Guide
Compliance guide for DOE 10 CFR 436.14 (August 2026). Master federal solar LCCA study periods up to 25 years, FEMP discount rates, and EIA projections.
US DOE 10 CFR 436.19: Federal Solar Life Cycle Cost Guide
Compliance guide for DOE 10 CFR 436.19 (August 2026). Master federal solar Life Cycle Cost (LCC) formulas, present values, and salvage accounting.
US DOE 10 CFR 436.33: Federal Solar ESPC Contractor Guide
Compliance guide for DOE 10 CFR 436.33 (August 2026). Master federal solar ESPC contractor selection, qualified ESCO lists, and guaranteed savings.
US DOE 10 CFR 436.37: Federal Solar ESPC Annual Audit Guide
Compliance guide for DOE 10 CFR 436.37 (August 2026). Master annual energy audits, guaranteed solar savings verification, and baseline adjustment rules.
US FERC 18 CFR 35.28 Small Generator Interconnection Guide
Understand US FERC 18 CFR 35.28 regulations for small generator interconnection, including SGIP, study penalties, and DER aggregation (August 2026).
US FERC 18 CFR 35.35 Transmission Incentives: A Solar Integration Guide
This guide details US FERC 18 CFR 35.35, outlining transmission infrastructure investment incentives for grid reliability and solar integration (August 2026).