Enhanced solar panels, liquid delivery systems and associated processes for solar energy systems

• US 10,116,257 B2
• Filed: 09/23/2016
• Issued: 10/30/2018
• Est. Priority Date: 08/14/2009
• Status: Expired due to Fees

• Current Assignee: Accurate Solar Power, Llc
• Original Assignee: Accurate Solar Power, Llc
• Inventors: Newdoll, Ronald M., Shaver, II, Argil E.
• Primary Examiner(s): Barr, Michael E
• Assistant Examiner(s): Tate-Sims, Cristi J
• Application Number:
  US15/275,263
• Publication Number:
  US 20170012579A1
• Time in Patent Office: 767 Days
• CPC Class Codes: H02J 2300/24 of photovoltaic origin
• CPC Class Codes: H02J 3/381 Dispersed generators
• CPC Class Codes: H02S 40/10 Cleaning arrangements
• CPC Class Codes: H02S 40/425 using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
• CPC Class Codes: H02S 50/00 Monitoring or testing of PV systems, e.g. load balancing or fault identification
• CPC Class Codes: Y02A 30/60 Planning or developing urban green infrastructure
• CPC Class Codes: Y02E 10/56 Power conversion systems, e.g. maximum power point trackers

Abstract

Fluid delivery systems and related structures and processes are provided, such as for use with water, treated water, and/or a cleaning solution, for any of cleaning, cooling or any combination thereof, for one or more solar panels in a power generation environment. Enhanced coatings are provided for the incident surface of solar panels, such as to avoid build up of dirt, scale, or other contaminants, and/or to improve cleaning performance. Reclamation, filtration, and reuse structures are preferably provided for the delivered fluid, and seal structures may preferably be implemented between adjoining panels, to minimize loss of the delivered water or cleaning solution.

Claims

1. A liquid distribution system for a power generation system comprising a plurality of solar panels, comprising:

a server;

a delivery mechanism for distributing a liquid over the outer surface of at least a portion of the solar panels;

a liquid delivery controller associated with the delivery mechanism; and

a plurality of panel controllers, wherein each of the panel controllers is associated with a corresponding solar panel and is configured to track one or more operating parameters for the corresponding solar panel, and to send a data signal to the server, wherein the data signal corresponds to the tracked parameters;

wherein the server is configured to monitor temperature of one or more of the solar panels based upon the received data signals, and to send a control signal to the liquid delivery controller when the monitored temperature exceeds a temperature setpoint; and

wherein the liquid delivery controller is configured to activate the delivery mechanism in response to the control signal.

2. A liquid distribution system for a power generation system comprising a plurality of solar panels, comprising:

a server;

a delivery mechanism for distributing a liquid over the outer surface of at least a portion of the solar panels;

a liquid delivery controller associated with the delivery mechanism; and

a plurality of panel controllers, wherein each of the panel controllers is associated with a corresponding solar panel and is configured to track one or more operating parameters for the corresponding solar panel, and to send a data signal to the server, wherein the data signal corresponds to the tracked parameters;

wherein the server is configured to monitor both efficiency and temperature of one or more of the solar panels based upon the received data signals, and to send a control signal to the liquid delivery controller when

the monitored efficiency is less than or equal to an efficiency setpoint, or

the monitored temperature exceeds a temperature setpoint; and

wherein the liquid delivery controller is configured to activate the delivery mechanism in response to the control signal.

3. The liquid distribution system of claim 2, wherein the delivery mechanism is activated for any of cleaning or cooling of the solar panels.

4. The liquid distribution system of claim 2, wherein the liquid comprises water.

5. The liquid distribution system of claim 4, wherein the liquid further comprises a cleaning solution.

6. The liquid distribution system of claim 2, wherein the solar panels have un upper incident surface for receiving incoming light, and wherein any of a hydrophilic or hydrophobic layer is applied to the upper incident surface of one or more of the solar panels.

7. The liquid distribution system of claim 6, wherein the hydrophilic layer comprises titanium oxide.

8. The liquid distribution system of claim 6, wherein the hydrophobic layer comprises any of silicon oxide or a fluoropolymer.

9. The liquid distribution system of claim 2, wherein the solar panels have an upper incident surface for receiving incoming light, and wherein one or more of the solar panels further comprise an interference layer over the upper incident surface to promote light penetration toward the incident surface.

10. The liquid distribution system of claim 2, wherein the tracked parameters comprise any of temperature, voltage, or power.

11. The liquid distribution system of claim 2, further comprising:

a recovery system for collecting and storing at least a portion of the distributed liquid.

12. The liquid distribution system of claim 11, wherein the recovery system further comprises a filter for filtering the collected distributed liquid.