Local solar water heating supply counter

Plumbers, solar installers and contractors who want parts on the same day, plus homeowners and builders planning a new system.

Margin on products sold to trade and retail customers, with possible extras such as delivery fees and referrals to trusted installers. Sales are likely to be modest and uneven at first, especially if you rely on solar thermal products alone.

• Product knowledge of solar thermal and plumbing parts
• Inventory and cash flow management
• Building relationships with local contractors

• Stock ties up cash, so start with fast-moving items and avoid over-ordering
• Check zoning and lease rules for a retail or warehouse unit, plus any local business license
• General liability and product liability insurance, plus workers' compensation if you hire
• Check which systems are certified for incentives in your state, such as SRCC OG-300
• Demand depends on local climate and changing incentives, so test interest before committing to a lease

Startup costs are typically estimated at around $60,000 to $200,000, depending on the size of your unit, how much stock you carry and your insurance. Stock ties up cash, so start with fast-moving items.

Monthly revenue is typically estimated at around $4,000 to $20,000, depending on your stock range, local demand and how many contractors you supply. Demand depends on local climate and changing incentives, so test interest first.

Check zoning and lease rules for a retail or warehouse unit, plus any local business license. Check general and product liability insurance, workers' compensation if you hire, and which systems are certified for incentives in your state, such as SRCC OG-300.