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About SolarPlanner.id
SolarPlanner.id stands on the buyer's side — not an installer, not an aggressive lead-gen marketplace. A public calculator, a curated directory, cited articles.
Chapter 01 · Origin
Prospective solar adopters in Indonesia face an installer-led ecosystem — every information channel is owned by vendors who also sell the product. The result: optimistically marketed payback figures, opaque calculator assumptions, and high friction comparing vendors.
SolarPlanner.id exists as an independent planning hub — we don't install panels, don't sell hardware, and take no contractor's side in directory curation. What we do: a calculator with a public formula + 40 years of NASA POWER data + quarterly-synced PLN tariffs + a contractor directory verified by our own team.
Not an installer. Not a marketplace. A neutral place that gives you concrete numbers for an informed negotiation with contractors.
Chapter 02 · Mission
The independence of the user-facing experience is a hard constraint for us. No aggressive pitching, no obvious paid placement, no selling of user data.
But we also don't pretend we have no business model. This platform has costs — servers, curation, data licensing, content writing. Our solution: be transparent about revenue sources, rather than a “0% commission” claim that hides the real model. See the “Business Model” section below for full detail.
6 Operating Principles
Six principles applied across every product + content + decision at SolarPlanner.id. Quotable, auditable, challengeable.
Every number in the calculator + every claim in an article + every glossary definition has a linked primary source. Readers can verify it themselves.
Solar estimates carry uncertainty — we publish ranges (e.g. 7–10 year payback, 3–6 kWp capacity) rather than single numbers that look precise but are assumption-laden.
Our business model involves contractor subscriptions, lead-gen fees, BOO referrals, and sponsored content. All openly disclosed — directory ranking is not affected by payment.
The calculator formula is public at /metodologi. Licensed CC-BY-4.0. We show not just results, but a calculation anyone can reproduce.
Default assumptions follow conservative figures (Performance Ratio 0.80 IEA PVPS Task 13, 0.5%/year degradation). Better to over-deliver than over-promise.
A glossary for technical terms. Microcopy avoids vendor jargon. Household and industrial readers alike can understand it without special training.
Business Model · Conflicts of Interest Disclosed
We believe transparency is stronger than a false “0% commission” claim. Here are SolarPlanner.id's four revenue sources and their disclosures:
Contractors pay a flat subscription fee to be eligible to appear in the SolarPlanner.id directory.
Disclosure: Subscription does NOT affect ranking — placement is merit-based (portfolio + SLO + user reviews).
A commission per qualified lead that SolarPlanner refers to a contractor (B2B-side, not charged to the user).
Disclosure: Users do NOT pay a referral fee. The lead-gen fee is transparent in the contractor-side ToS.
For Build-Own-Operate schemes (industrial segment), SolarPlanner.id receives a referral fee from the BOO contractor the user chooses.
Disclosure: BOO referral only applies when the user explicitly chooses a BOO scheme + the contractor successfully signs a contract.
Articles/case studies sponsored by industry/EPC partners. Always clearly labeled “Sponsored”.
Disclosure: Sponsored content must NOT contradict facts/data in the neutral calculator or glossary.
Independent in the user-facing experience: Users face no hard-sell, no obvious paid placement, no aggressive pitching. B2B-side internal revenue exists but does not compromise the experience's neutrality.
Future evolution: Detailed specs for tier pricing, lead-gen rate, BOO referral percent, and the sponsored-content rate card will be published to the Terms & Conditions “Revenue Model & Conflict of Interest” section once the business model is fully production-ready.
Go Deeper
A short methodology version for quick understanding, and a full disclosure for the audit transparency framework.
A 1-page summary: 3 primary data sources + the core formula kWh = kWp × PSH × PR × 365 + a PVGIS ±10% validation framework.
Interim operator identity → PT, explicit pricing for 4 revenue streams, 5 cited data sources, COI policy, transparency contacts.
Public tools, an open formula, cited primary sources.