Vendée Globe - Life onboard : Day 20

🇫🇷 // Champagne Sailing à bord de MS Amlin ! De nouveau dans le peloton et bloqué dans un nuage la nuit dernière, Conrad avoue avoir des difficultés à ne pas se comparer à ceux d’à côté… Mais le skipper profite désormais de conditions idéales pour se concentrer sur sa vitesse et préfère voir les choses dans leur ensemble pour la descente de l’Atlantique Sud plutôt que de se focaliser sur la concurrence ! ▶️ Vidéo intégrale : youtu.be/-skVeMM05Bs 🇳🇿🇺🇸 // Champagne Sailing aboard MS Amlin! Back in the pack and stuck in a cloud last night, Conrad admits he's finding it hard not to compare himself with those next to him... But the skipper is now taking advantage of ideal conditions to concentrate on his speed, and prefers to look at the bigger picture for the South Atlantic descent rather than focusing on the competition! ▶️ Full video: youtu.be/-skVeMM05Bs Social medias : Facebook : https://www.facebook.com/conradcolmanoceanracing Instagram : https://www.instagram.com/conradcolman

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1) Understanding your energy needs is essential to determine how much solar you need. Start by making an "energy budget". List all your consumers and their daily usage. For example, if your LED lights use 1W per bulb and you have eight bulbs on for 5 hours a day, that would be 8 Watts for 5 hours or (8x5) 40 Wh (Watt hours). I like to use kWh to keep things consistent. 40 Wh = 0.040 kWh. It's a good idea to list what you're using while at anchor and another list of what you're using while underway (for instance, you don't use your autopilot at anchor). Remember to list everything: fridge, freezer, watermaker, autopilot, nav lights, chart plotters, etc. For example, here aboard Athena, with an electric galley, fridge, freezer, watermaker, two computers, etc, we use an average of 5.5 kWh per day. 2) To give you a quick estimate, use https://globalsolaratlas.info/ to find "Global horizontal irradiation" per day for your location. Take your daily energy consumption from step 1 and divide that by the number of solar hours. In the case of Athena, located in the Caribbean, that would be 5.5kWh per day / 5 sun hours = 1.1 kW solar array. Keep in mind that this is a theoretical number that does not take into account the shading or degradation of the panels over time. Let's add 30%. 1.1 x 1.3 = 1.43 kW. You can now divide that number by the panel's Nominal Power output. In the case of Athena, our panels are 400W SunPower panels. 1430W / 400W = 3.6 panels needed to cover our 5.5 kWh per day consumption. 3) Understand that the amount of solar you can install on a small sailboat is limited by the size of the boat and heavily influenced by shading and, of course, the boat's location. The size of the panels might also be defined by the height of your stanchions or the size of an existing solar arch. Figure out where you're able and willing to install panels. That will dictate the size and number of panels. 4) Use Victron Energy's MPPT Calculator to calculate what MPPT is ideally sized for your solar panels and expected output based on location. Based on our experience in the Caribbean, the estimate provided by the guide is reasonable. https://www.victronenergy.com/mppt-calculator. Remember that it's best practice to avoid combining panels with different specs on the same MPPT. #sailboat #sailboatproject #boatwork #saillife #liveaboard #liveaboardlife #saltlife #sailing #sailingadventure #travel ingcouple #livingonaboat #solar #sailboatsolar