Chief Appraiser Says
Reading the actual guideline text below — never a general AI guess
What a Solar Rapid Shutdown Switch Actually Is
Here's what the guidelines say: A rapid shutdown switch is a safety device that has nothing to do with how much electricity your solar system produces or how well it works — it's purely a life-safety requirement mandated by the National Electrical Code that most states have adopted. When firefighters respond to an emergency at your home, they need to be able to quickly turn off the high-voltage electrical current running through the solar panels and wiring on your roof so they can work safely without risk of electrocution. You'll typically find the switch or a label marking its location near your main electrical panel or utility meter, and the fact that it's there doesn't mean anything about your system's size, performance, or value.
Straight from *Solar PV: Kilowatt & System Basics Reference (EIA/NREL, NEC 690.12)* — nothing added.
Here's what the guidelines say: A rapid shutdown switch is a safety device that has nothing to do with how much electricity your solar system produces or how well it works — it's purely a life-safety requirement mandated by the National Electrical Code that most states have adopted. When firefighters respond to an emergency at your home, they need to be able to quickly turn off the high-voltage electrical current running through the solar panels and wiring on your roof so they can work safely without risk of electrocution. You'll typically find the switch or a label marking its location near your main electrical panel or utility meter, and the fact that it's there doesn't mean anything about your system's size, performance, or value.
Straight from *Solar PV: Kilowatt & System Basics Reference (EIA/NREL, NEC 690.12)* — nothing added.
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© Copyright Notice: © 2026 Fannie Mae. Excerpts shown for research and reference only. Full document available at selling-guide.fanniemae.com. Reproduction restricted to Fannie Mae-approved lenders.
© Copyright Notice: © Fannie Mae. UAD 3.6 / URAR reference materials shown for research and reference only. Full documents available at fanniemae.com/uad. Reproduction restricted per Fannie Mae copyright policy.
© Copyright Notice: © Freddie Mac. Excerpts shown for research and reference only. Full document available at guide.freddiemac.com. Reproduction restricted per Freddie Mac copyright policy.
Relevant News
Recent public coverage related to this topic — cited, not reproduced
Recent California data shows 5-10% premium for owned solar homes
California-specific data shows owned solar panels add 5–10% to home value (about $39,500–$79,000 on median homes), while leased panels generally do not add appraised value.
Read full story at Open Door →
Fannie Mae appraisal guidelines exclude leased solar panels from property value
Under Fannie Mae's appraisal guidelines, leased solar panels, those under a power purchase agreement (PPA), or separately financed with a UCC lien may not contribute to appraised property value.
Read full story at Effective Agents / Fannie Mae guidelines →
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produce" for a specific listing, rather than relying on a rule-of-thumb number pulled from a different climate or roof. The rapid shutdown switch or label — a real, unrelated code…
Solar PV: Kilowatt & System Basics Reference (EIA/NREL, NEC 690.12) · Solar_PV_Kilowatt_and_Capacity_Reference.txt · Page 11
produce" for a specific listing, rather than relying on a rule-of-thumb number pulled from a different climate or roof. The rapid shutdown switch or label — a real, unrelated code requirement. Sellers and buyers sometimes notice a labeled shutdown switch or placard near the main electrical panel or the utility meter and assume it's related to system sizing or production — it isn't. It's a life-safety requirement. The National Electrical Code, in the model language most states and jurisdictions have adopted (2023 NEC Section 690.12), requires PV system circuits installed on or in a building to include a rapid shutdown function, so firefighters can de-energize the high-voltage DC conductors on a roof quickly during an emergency rather than working around
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Solar PV: Kilowatt & System Basics Reference (EIA/NREL, NEC 690.12) · Solar_PV_Kilowatt_and_Capacity_Reference.txt · Page 14
[Excerpt withheld: the fair-use viewing limit for this document has been reached for this session. See the source document itself for more.]
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✓ Lender Requirements for Properties with Solar Panels that are Leased or Covered by a Power Purchase Agreement The property must maintain access to an alternate source of…
Fannie Mae Selling Guide · Selling Guide - 06-03-2026.pdf · Page 281
· View at official source (selling-guide.fanniemae.com) →
✓ Lender Requirements for Properties with Solar Panels that are Leased or Covered by a Power Purchase Agreement The property must maintain access to an alternate source of electric power that meets community standards. The lease or power purchase agreement must indicate that • any damage that occurs as a result of installation, malfunction, manufacturing defect, or the removal of the solar panels is the responsibility of the owner of the equipment and the owner must be obligated to repair the damage and return the improvements to their original or prior condition (for example, sound and watertight conditions that are architecturally consistent with the home); • the owner of the solar panels agrees not to be named loss payee (or