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 18 of 19
Money
Schemes, instalments, loans — what can I actually get?
Victron LG Chem RESU Compatibility Guide
Victron compatibility and configuration settings.
Victron Pylontech LiFePO4 Battery CAN-Bus Setup Guide
Set up your Victron Energy system with Pylontech LiFePO4 batteries using CAN-bus. Ensure correct firmware, cabling, and GX device configuration for reliabl...
Victron Pytes LiFePO4 Battery CAN-Bus Setup Guide
Configure Victron GX devices, inverters, and solar chargers to communicate with Pytes LiFePO4 batteries using CAN-Bus for optimal performance.
Virginia Clean Economy Act SREC Market Guide
Qualify for Virginia VCEA SREC trading. Learn PJM-EIS GATS credit minting, 5-year compliance lifespans, Section 25D stacking, and utility obligations.
Virginia Dominion and Appalachian Power Solar Interconnection Guide
Engineering guide to Virginia solar interconnection under Code § 56-594.01, covering review timelines, agricultural aggregation, and disconnect rules.
Virginia Dominion Energy And Apco Solar Interconnection Guide
Understand Tier 1 solar interconnection rules for Dominion Energy and APCo in Virginia, including UL 1741-SB compliance and mandatory AC disconnects.
Virginia Net Metering And Code Section 56 594 Guide
Understand Virginia net metering under Code Section 56-594 and technical requirements including UL 1741-SB inverters and Section 25D tax credits.
Virginia Net Metering: Rules for Dominion Energy and Appalachian Power Customers
Guide to Virginia solar net metering rules for Dominion and Appalachian Power customers, covering capacity limits, review periods, and excess credits.
Washington EV Incentives in 2026: What Expired, What's Left
Washington's EV sales tax exemption expired July 31, 2025 and the instant rebate ran dry — but pre-deadline leases keep their exemption through 2028.
Washington RCW 80.60.010: Solar Net Metering Capacity Limits Guide
Understand Washington State's RCW 80.60.010 and 80.60.020 net metering laws, including the 100 kW AC capacity cap and the 4% 1996 peak demand threshold (Augu...
Washington RCW 80.60.030: Meter Aggregation and March 31 True-Up Guide
Understand Washington State's RCW 80.60.030 for solar net metering. This guide covers meter aggregation rules, monthly kWh credit rollover, and the annual Ma...
Washington State Net Metering And Rcw 80 60 Guide
Understand Washington State 1:1 net metering under RCW Chapter 80.60, including the 30 April annual true-up and Section 25D solar tax credit rules.
West Virginia PSC Net Metering Rules 150 CSR 33: System Capacity, Insurance, and Interconnection
Understand West Virginia's PSC Net Metering Rules 150 CSR 33, covering system capacity limits, insurance requirements, and interconnection standards a...
What Drives Solar Battery Cost? The Four Real Factors
We publish no battery price — they move too fast — but the cost structure is durable: cells, power electronics, install complexity, and the subsidy vacuum.
What Size Solar Generator Do You Need? Match the Job
Two specs decide every solar generator: watt-hours for how long, watts for how big a load. The sizing table, from phone weekends to a fridge through an outage.
Wisconsin PSC 119 Distributed Generation Interconnection Guide: Categories, Fees, and Timelines
Wisconsin PSC 119 interconnection: four export-capacity categories from 20 kW to 15 MW, $150 to $4,000 review fees, 10-working-day clocks (September 2026).
Wisconsin We Energies And Alliant Solar Net Metering Guide
Understand how We Energies and Alliant Energy net metering billing works in Wisconsin, including bidirectional meters and avoided-cost credit rules.
Wyoming Cheyenne Light Fuel And Power Solar Tariff Guide
Cheyenne Light, Fuel and Power (Black Hills Energy) net metering riders, customer generation buyback rates, and meter charges.
Wyoming Psc Distributed Generation And Safety Standards Guide
Wyoming PSC Chapter 3 safety and technical requirements for parallel generation, anti-islanding, and liability insurance rules.
Wyoming Rocky Mountain Power Net Metering And Billing Guide
Wyoming PSC Title 37 net metering rules, 25kW system capacity limit, monthly kWh roll-over credits, and annual true-up.
Wyoming Rocky Mountain Power Solar Interconnection Guide
Rocky Mountain Power Wyoming simplified solar interconnection, lockable visible-break AC disconnect, and net meter exchange.
Reports
Original data stories — the numbers behind the market.
CAISO Solar vs Natural Gas Generation Report: EIA Grid Data & Trends
EIA report on CAISO: utility solar exceeded natural gas on 82% of days in 2026, solar output grew 21%, gas dropped 60%, and battery discharge tripled.
ERCOT Texas Solar Exceeding Coal Generation Report: EIA Grid Forecast
EIA report on ERCOT: solar generation forecast to exceed coal in 2026 (78 BkWh vs 60 BkWh) as Texas accounts for 40% of planned national solar additions.
U.S. Battery Storage Growth Trends Report: EIA Capacity Data & Analysis
EIA report on U.S. utility battery storage: 70% annual growth, 52 GW operating capacity, 54 GW pipeline, and major solar-plus-storage hybrid projects.