Krause Residence, Residential Solar System Michael and Victoria Krause went solar with GreenSpark at their Ontario, NY home. Their system size was nearly 8 kW and their expected annual savings will be close to $1,400. We're proud to help homeowners like the Krause's make the switch to clean, local, and sustainable solar power. GreenSpark is committed to bringing affordable and accessible solar power to the Greater Rochester area and we need your help in making that happen. System size: 7.95 kW Reduction in Electricity Use: 94% Expected Annual Savings: $1,385 Lifetime Savings: $34,614 Payback Period: 8 years