I’m going to start with a LTM Sunspace and list the costs and benifits. Then add the next sensible low-cost upgrade to see where the cost/benifit ratio tails off. EARTHEN-STORED SOLAR HEATING explains these concepts and authors experience with them in great detail. Is there…
Goals 100% solar fraction for DHW without utility power Challenges December and January are both coldest and cloudiest months of the year. The highest energy demand corresponds with the lowest solar energy supply A large hot water tank (200+ gallon) is difficult to store in…
Goals Affordable to construct and operate Low embedded energy in construction and operation Comfortable place to live with sufficient space and fresh air All critical systems can function without utility power (Heat, Water, Cooking, Refrigeration) Challenges December and January are both coldest and cloudiest months…