How do I use the Open Financial & Energy Datasets (1971-2026)?

Enter your specific project or financial parameters into the input fields above. The engine recalculates outputs dynamically in real time and updates visual charts and summary metrics.

Can I export and share these results?

Yes, you can generate shareable state links, export clean CSV spreadsheets, or print high-resolution executive reports with a single click.

Is this calculator free to use?

Yes, all calculation engines on ToolsVault are 100% free with no account registration or paywall required.

Academic & Quantitative Underwriter Commons

Open Financial & Energy Datasets

Free, open-access economic benchmarks and renewable energy matrices for researchers, students, developers, and financial analysts. Licensed under CC BY 4.0.

US 30-Year Fixed Mortgage Rates (1971–2026)

CSV / JSON

Historical Freddie Mac Primary Mortgage Market Survey (PMMS) benchmark rates, annual inflation, and housing payment indices.

• 1981 Peak: 18.63%

• 2021 Low: 2.65%

• 2026 Benchmark: ~6.50% - 6.85%

Open Mortgage Underwriting Solvers

50-State Solar Insolation & Electric Rates

Dataset Matrix

State-by-state Peak Sun Hours (PSH), average residential cents/kWh electricity tariffs, and net metering compensation rules.

• High PSH: Arizona (6.2 PSH, $0.15/kWh)

• High Tariff: California ($0.48/kWh Peak, NEM 3.0)

• Lowest Tariff: Washington ($0.11/kWh, 3.8 PSH)

Explore 50-State Multipliers Index

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Add this interactive tool to your real estate, construction, or financial website. Free embed code with zero branding locks.