| Energy Notes | ~ | Power Plan | ~ | Modifications | ~ | Ceremonies |
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SHEPHERD MOON
/ POWER
PLAN The POWER PLAN has three distinct battery banks (1,2,3)
which are separately connected to passive charging sources. PASSIVE CHARGING: Battery Bank 1 / HOUSE At anchor 104 amp hours per day anticipated 78 AH Five 50-watt solar panels on arch and one 50-watt solar panel on sea hood 20 AH One 90-watt solar panels on hard dodger (midship) 6 AH Wind generator (on arch) / average 6 knots wind half of time Offshore 66 amp hours per day anticipated 13 AH One 50-watt solar panels on arch (other arch panels folded out of use) 13 AH One 50-watt solar panels on sea hood 20 AH One 90-watt solar panel on hard dodger (midship) 20 AH Wind generator (on arch)
Battery Bank 2 /
ELECTRONICS At anchor 41 amp hours per day anticipated 41 AH Two 90-watt solar panels on hard dodger (outboard) Offshore 102 amp hours per day anticipated 41 AH Two 90-watt solar panels on hard dodger 61 AH Wind Hunter power leg water generator on transom / 2.54 amps at 5.2 knot ave. Battery Bank 3 /
ENGINE At anchor 4 amp hours per day anticipated 4 AH Two 6-watt solar panels (front slope of sea hood) Offshore 4 amp hours per day anticipated 4 AH Two 6-watt solar panels (front slope of sea hood) PAPRIORATORY SERVICE (unaffected by switching configurations) Bilge Pump / Strobe Light / Inmarsat-C wired directly to Battery Bank 2. Strobe light switch to be located in cockpit.
ENERGY BUDGET (This budget is not intended to be precise, but rather an attempt to identify all uses of power and estimate a maximum average use of power. Actual power consumption should be somewhat less. Passive charging rates will not always match discharge rates and may not be fully utilized). HOUSE
At Anchor 104 amp hours per day (124 AH less 14.00 AH Charging Inefficiency and 6.00 AH solar shading) .33 AH Natural Discharge 2.10 AH Red coutesy Lights Lights / 12 hours 3.00 AH Galley Light and incidental lights / 18 watts / 2 hours .70 AH Bilge Light / 12 hours .35 AH Berth Lights / two lights / 3 hours each .42 AH Log Light / 1 hour .50 AH Chart Light / 1 hour 6-watt 4.00 AH Panel Lights (and Battery Bank monitor) 2.40 AH Berth Fans and Saloon fan / 12 hours combined 32.00 AH Watermaker / 8 hrs (day) / 12 gal ( 1 gal backflush / 3 gal tank / 8 gal crew) 32.00 AH Fridge/Freezer (daytime only) .04 AH Fridge/Freezer light 12.00 AH Microwave / 10 minutes / 1 amp draw allowed for inverter & 80% efficiency 2.00 AH Vacuum 2.50 AH Charger (for small batteries) 6.00 AH Tapes / Videos / Radio / laptops .90 AH Silenoid / 1.5 hours 2.76 AH Water Pressure
Offshore 66 amp hours per day (73 AH less 4.00 AH Charging Inefficiency and 3.00 AH solar shading) .33 AH Natural Discharge
2.10 AH Red Courtesy
Lights / 12 hours .70 AH Bilge Light / 12 hours
.35 AH Berth Lights / two lights / 3 hour
each
.42 AH Log Light / 1 hours .50 AH Chart Light / 6 watt / 1 hour 3.50 AH Panel Lights (and Battery Bank monitor) 2.40 AH Berth Fans / 12 hours combined (saloon fan not used offshore) 8.00 AH Watermaker / 3 gallons ( 1 gal backflush / 2 gal crew) / 2 hours (daytime) 20.00 AH Fridge/Freezer .04 AH Fridge/Freezer light 24.00 AH Microwave / 20 minutes / 1 amp draw allowed for inverter & 80% efficiency 1.20 AH Vacuum (alternate days) 2.00 AH Charger (for small batteries) .16 AH Radio .30 AH Water Pressure
ELECTRONICS
At Anchor
41 amp hours per day
(46 AH less 4.00 AH Charging Inefficiency and 2.00 AH solar shading) .33 AH Natural Discharge 1.24 AH Hydra 2000 / 24 hours / 12 hour lighting 3.84 AH Hydra 2000 Processor / 24 hours 1.20 AH 20/20 Speed Wind Speed / 24 hours / 12 hour lighting 1.20 AH 20/20 Depth / 24 hours / 12 hour lighting 1.56 AH B&G Analog Apparent Wind / 24 hours / lighted 12 1.03 AH Anchor Light / 12 hours 3.50 AH Panel Lights (and Battery Bank monitor) 11.95 AH VHF Standby / 23.9 hours .15 AH VHF Transmit-Receive / low power / 0.1 hours (6 minutes) 15.00 AH Satellite Weather / Printer / e-mail / DVD
Offshore 102 amp hours per day
(110 AH less 6.00 AH Charging Inefficiency and 2.00 AH solar shading) .33 AH Natural Discharge 1.24 AH Hydra 2000 / 24 hours / lighted 12 hours 3.84 AH Hydra 2000 Processor / 24 hours 1.20 AH 20/20 Depth / 24 hours / lighted 12 hours 1.20 AH 20/20 Speed / 24 hours / lighted 12 hours 1.56 AH B&G Analog Apparent Wind / 24 hours / lighted 12 hours 1.24 AH GPS / 24 hours / lighted 12 hours .72 AH Compass Light / 12 hours .38 AH Deck/Spreader Lights / 90 total watts / 3 minutes 1.70 AH Tri-color Masthead Running Lights / 12 hours 4.00 AH Panel Lights (and Battery Bank monitor) 1.26 AH Radar Transponder / 23 hours standby / 1 hours re-transmit 25.00 AH Radar 11.95 AH VHF Standby / 23.9 hours .38 AH VHF High Power Transmit-Receive / 0.1 hours (6 minutes) 10.00 AH Satellite Weather / Printer / e-mail 36.00 AH Autopilot / 12 hours per day at 3 amp average
ENGINE
SWITCHING CONFIGURATIONS (32 switching configurations are possible, not all useful. Active charging capabilities are noted.) I. The three systems can operate totally separately with battery banks separated: A.) (Intended configuration) Main battery bank switches 1* 2* 3* ON with system selector switch to Separate Systems (Battery Bank 3 can be charged by engine alternator and Battery Bank 1 by shore power through the inverter/charger)
B.) (May be used offshore) Main battery bank switches 1* 2* ON and 3* OFF with system selector Switch to Separate Systems. (Battery Bank 3 is dormant and Engine disabled / Battery Bank 1 can be charged by shore power through the inverter/charger) C.) (May be used for marina short term stay or wet storage) Main battery bank switches 1* 3* ON and 2* OFF with system selector switch to Separate Systems. (Battery Bank 2 dormant and Electronics disabled / Battery Bank 1 can be charged by shore power through the inverter/charger and Battery Bank 3 can be charged by the engine alternator.) D.) (May be used for long term marina wet storage.) Main battery bank switches 1* 2* OFF 3* ON with system selector switch to Separate Systems. (Battery Banks 1 and 2 dormant, and House and Electronics disabled / Battery Bank 3 can be charged by the engine alternator.)
E.) (May be used for long term storage on the hard) Main battery switches 1* 2* 3* OFF with system selector switch to Separate Systems. (Battery Banks 1,2,3 dormant and House, Electronics, Engine disabled / no active charging possible.)
II. With totally separated battery banks, any two battery banks can serve all three systems while the third battery bank is dormant: F.) (May be used to reserve Battery Bank 3) Main battery switches 1* 2* ON 3* OFF with system selector switch connecting systems 1 & 3. (Battery Bank 1 serves Engine as well as House and Battery Bank 3 dormant / Battery Bank 1 can be charged by the engine alternator and/or by shore power through the inverter/charger.) G.) (May be used to reserve Battery Bank 3) Main battery bank switches 1* 2*
ON
3* OFF with system selector switch connecting systems 2 & 3. ( Bank 2 serves Engine as well as Electronics and Battery Bank 3 is dirnant / Battery Bank 1 can be charged by shore power through the inverter/charger And Battery Bank 2 can be charged by the engine alternator.) H.) Main battery bank switches 1* OFF 2* 3* ON with system selector switch connecting systems 1 & 3. (Battery Bank 3 serves House as well as Engine and Battery Bank 1 is dormant / Battery Bank 3 can be charged by the engine alternator and/or by shore power through the inverter/charger.) I.) Main battery bank switches 1* 3* ON 2* OFF with system selector switch connecting systems 2 & 3. (Battery Bank 3 serves Electronics as well as Engine and Battery Bank 2 is dormant / Battery Bank 1 can be charged by shore power through the inverter/charger and Battery Bank 3 can be charged by the engine alternator.) III. With totally separated battery banks, any one battery bank can serve all three systems while the other two battery banks are dormant: J.) Main battery bank switches 1* ON 2* 3* OFF with system selector switch connecting systems 1 & 2 & 3. (Battery Bank 1 serves Electronics and Engine as well as House, and Battery Banks 2 and 3 are dormant / BatteryBank 1 can be charged by shore Power through the inverter/charger and/orby the engine alternator.) K.) Main battery bank switches 1* 3* OFF 2* ON with system selector switch connecting systems 1 & 2 & 3. (Battery Bank 2 serves House and Engine as well as Electronics, and Battery Banks 1 and 3 are dormant / Battery Bank 2 can be charged by shore power through the inverter/charger and/or by the engine alternator.) L.) Main battery bank switches 1* 2* OFF 3* ON with system selector switch connecting systems 1 & 2 & 3. (Battery Bank 3 serves House and Electronics as well as Engine, and Battery Banks 1 and 2 are dormant / Battery Bank 3 can be charged by shore power through the inverter/charger and/or by the engine alternator.) IV. Any two connected battery banks can serve all three system while the third Battery bank is dormant: M.) Main battery bank switches 1* 2* ON 3* OFF with system selector switch connecting systems 1 & 2 & 3. (Connected Battery Banks 1 and 2 jointly serve House, Electronics, and Engine; and Battery Bank 3 is dormant / Battery Banks 1 and 2 can together be charged by shore power through the inverter/charger and/or by the engine alternator.) N.) Main battery bank switches 1* 3* ON 2* OFF with system selector switch connecting systems 1 & 2 & 3. (Connected Battery Banks 1 and 3 jointly serve House, Electronics, and Engine; and Battery Bank 2 is dormant / Battery Banks 1 and 3 can together be charged by shore power through the inverter/charger and/or by the engine alternator.) O.) Main battery bank switches 1* OFF 2* 3* ON with system selector switch connecting systems 1 & 2 & 3. (Connected Battery Banks 2 and 3 jointly serve House, Electronics, and Engine; and Battery Bank 1 is dormant / Battery Banks 2 and 3 together can be charged by shore power through the inverter/charger and/or by the engine alternator.) V. Battery Bank 1 or Battery Bank 2 can be connected to Battery Bank 3 (useful to provide more power to start engine): P.) Main battery switches 1* 2* 3* ON with system selector switch connecting systems 1 & 3. (Connected Battery Banks 1 and 3 jointly serve House and Engine / Battery Banks 1 and 3 can together be charged by shore power through the inverter/charger and/or by the engine alternator.) Q.) Main battery switches 1* 2* 3* ON with system selector switch connecting systems 2 & 3. (Connected Battery Banks 2 and 3 Jointly serve Electronics and Engine / Battery Bank 1 can be charged by shore power through the inverter/charger and Battery Banks 2 and 3 can together be charged by the engine alternator.) VI. All three Battery Banks can be connected (useful to provide more power to start) R.) Main battery bank switches 1* 2* 3* ON with system selector switch connecting systems 1 & 2 & 3. (Connected Battery Banks 1, 2, and 3 jointly serve House, Electronics, Engine / Battery Banks 1,2, and 3 together can be charged by shore power through the inverter/charger and/or by the engine alternator.)
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